8998CT9701

2014-09-27

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Product Description
Application and General Information
Technical Overview
- Short Circuit Current Ratings
Selection Guide
- Layout Instructions
- Unit Designation Chart for Planning
Dimensions
- General
Typical Specifications

Model 6 Motor Control Centers

Catalog

8998CT9701R07/09

2009

Class 8998

CONTENTS

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Application and General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Technical Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Selection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Typical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

Model 6 Motor Control Centers

Table of Contents

07/2009

Product Description............................................................................................................................... 7

Introduction .................................................................................................................................... 7

Features ................................................................................................................................... 8

Codes and Standards ..................................................................................................................... 9

Certification .................................................................................................................................... 9

NEMA/EEMAC Wiring Classes and Enclosure Types ................................................................... 9

Wiring Classes .......................................................................................................................... 9

Class 1—Independent Units ............................................................................................... 9

Class 2—Interconnected Units ........................................................................................... 9

Type A................................................................................................................................. 9

Type B................................................................................................................................. 9

Type B-D............................................................................................................................. 9

Type B-T ............................................................................................................................. 9

Type C .............................................................................................................................. 10

Enclosure Types ..................................................................................................................... 10

Type 1............................................................................................................................... 10

Type 1A (Gasketed).......................................................................................................... 10

Type 3R ............................................................................................................................ 10

Type 12............................................................................................................................. 10

Shipping Weights ......................................................................................................................... 10

Altitude Ratings ............................................................................................................................ 11

Motor Control Center Heat Dissipation ......................................................................................... 11

Structure Steel Gauge Information ............................................................................................... 13

Application and General Information................................................................................................... 14

Structures and Bussing ................................................................................................................ 14

Structure ................................................................................................................................. 14

Bussing Options and Modifications ........................................................................................ 14

Structure Options and Modifications ....................................................................................... 15

Special Structures .................................................................................................................. 15

Model 6 to Model 5 Transition Section ................................................................................... 16

Switchboard to Model 6 Transition Section ............................................................................ 16

Bus Duct Connection .............................................................................................................. 16

Model 4 to Model 6 Transition Section ................................................................................... 17

Incoming Devices ......................................................................................................................... 18

Main Lug Compartments ........................................................................................................ 18

Main Circuit Breakers ............................................................................................................. 19

Optional Masterpact® Power Circuit Breaker Main Units—Stored Energy/Drawout Style/

Insulated Case ........................................................................................................................ 20

MCC Masterpact Main Accessory Groups ............................................................................. 22

Tie Breakers ........................................................................................................................... 23

Main Fusible Switches ............................................................................................................ 24

Standard Wire Lug Ranges (Mechanical) ............................................................................... 24

3-Phase, 4-Wire Systems ....................................................................................................... 26

PowerLogic® Circuit Monitor ................................................................................................... 28

PowerLogic Power Meter ....................................................................................................... 29

Transient Voltage Surge Suppressor (TVSS) Units for MCC Incoming Mains ....................... 32

Model IMA TVSS (120 kA Surge Rating) ............................................................................... 33

Model IMA TVSS (160kA Surge Rating) ................................................................................ 33

Model IMA TVSS (240 kA Surge Rating) ............................................................................... 33

Additional Options .................................................................................................................. 33

Branch Feeder Units .................................................................................................................... 34

Circuit Breaker Branch Feeder Units ......................................................................................34

Fusible Switch Branch Feeder Units ...................................................................................... 35

Combination Starter Units ............................................................................................................ 36

Full Voltage Non-Reversing (FVNR) Starters with Circuit Breakers ....................................... 36

Full Voltage Non-Reversing Vacuum Starters with Circuit Breakers ......................................37

Application-Rated Compac™ 6 Starters—Full Voltage Non-Reversing with Circuit Breakers ...... 38

Model 6 Motor Control Centers

Table of Contents

407/2009

Full Voltage Reversing (FVR) Starters with Circuit Breakers ..................................................39

Full Voltage Reversing Vacuum Starters with Circuit Breakers ..............................................39

Application-Rated Compac 6 Starters—Full Voltage Reversing with Circuit Breakers ...........40

Reduced Voltage Autotransformer (RVAT) Starters with Circuit Breakers .............................41

Reduced Voltage Autotransformer (RVAT) Vacuum Starters with Circuit Breakers ...............41

Full Voltage 2-Step Part-Winding (FVPW) Starters with Circuit Breakers ..............................42

Full Voltage 2-Speed 1-Winding Starters (Consequent Pole) with Circuit Breakers ...............42

Full Voltage 2-Speed 2-Winding Starters (Separate Winding) with Circuit Breakers ..............43

Full Voltage 2-Speed Reversing Starters with Circuit Breakers ..............................................43

Wye-Delta Closed Transition Starters with Circuit Breakers (Non-UL Listed) ........................44

Wye-Delta Open Transition Starters with Circuit Breakers (Non-UL Listed) ...........................45

Full Voltage Non-Reversing (FVNR) Starters with Fusible Switch Disconnects .....................46

Full Voltage Non-Reversing Vacuum Starters with Fusible Switch Disconnects ....................46

Application-Rated Compac 6 Starters—Full Voltage Non-Reversing with Fusible Disconnects ...47

Full Voltage Reversing (FVR) Starters with Fusible Switch Disconnects ...............................48

Full Voltage Reversing Vacuum Starters with Fusible Switch Disconnects ............................48

Application-Rated Compac 6 Starters—Full Voltage Reversing with Fusible Disconnects ...........49

Reduced Voltage Autotransformer (RVAT) Starters with Fusible Switch Disconnects ...........50

Reduced Voltage Autotransformer Vacuum Starters with Fusible Switch Disconnects ..........50

Full Voltage 2-Step Part-Winding (FVPW) Starters with Fusible Switch Disconnects ............50

Full Voltage 2-Speed, 1-Winding Starters (Consequent Pole) with Fusible Switch Disconnects ..51

Full Voltage 2-Speed, 2-Winding Starters (Separate Winding) with Fusible Switch Disconnects .51

Full Voltage 2-Speed Reversing Starters with Fusible Switch Disconnects ...........................51

Wye-Delta Closed Transition Starters with Fusible Switch Disconnects (Non-UL Listed) ......... 52

Wye-Delta Open Transition Starters with Fusible Switch Disconnects (Non-UL Listed) ........52

Altivar® 61 and 71 AC Drives .......................................................................................................53

MCC Package Features ..........................................................................................................53

Factory Options: ......................................................................................................................53

Altivar AC Drive Features .............................................................................................................54

Options ...................................................................................................................................55

Combination Altistart® 48 Soft Start Units ....................................................................................60

Selection .......................................................................................................................................60

Standard Duty Applications .....................................................................................................60

Severe Duty Applications ........................................................................................................60

Features .......................................................................................................................................62

Shorting Contactor ..................................................................................................................62

Torque Control System (TCS) ................................................................................................62

Starting and Stopping .............................................................................................................62

Protective Features .................................................................................................................62

Monitoring and Indication ........................................................................................................63

NEMA/EEMAC Type 3R Enclosure Applications for AC Drives and Soft Starts .....................66

Environmental Control ............................................................................................................66

Ratings ....................................................................................................................................67

Unit Options ..................................................................................................................................68

Options And Modifications ......................................................................................................68

Pilot Devices ...........................................................................................................................71

Pilot Lights ..............................................................................................................................72

Overload Relays .....................................................................................................................73

TeSys® T Motor Management Controller ................................................................................74

Motor Logic® Solid-State Overload Relays .............................................................................75

Motor Logic Plus Solid State Overload Relays .......................................................................76

AccuSine® Power Correction System .................................................................................86

General Information ................................................................................................................86

Accusine PCS Sizing ..............................................................................................................87

Single-Phase Distribution Transformers 120/240V Secondary .................................................. 88

Three-Phase Distribution Transformers 208Y/120 V Secondary ............................................89

Model 6 Motor Control Centers

Table of Contents

07/2009

Distribution Panelboards ........................................................................................................ 90

Factory Installed Panelboard Branch Circuit Breakers ........................................................... 90

Empty Mounting Units ............................................................................................................ 91

Full Section Empty Mounting Units (Relay Section) ............................................................... 91

Unwired Master Terminal Compartment ................................................................................. 91

Blank Doors ............................................................................................................................ 91

Power Factor Correction Capacitors ......................................................................................92

Selection ................................................................................................................................. 92

Capacitor Sizing Table—480 V .............................................................................................. 93

PowerLogic® Ethernet Gateways ........................................................................................... 94

Transparent Ready® Equipment Configurations .................................................................... 94

Gateway Ethernet Switches ................................................................................................... 94

High Resistance Ground Unit ................................................................................................. 95

ASCO 7000 Series Automatic Transfer Switches With Microprocessor Control Panel

(Non-UL Listed) ............................................................................................................................ 96

Model 6 iMCCs ............................................................................................................................. 98

Common Mounting Configurations for Automation Components ........................................... 99

iMCC-Network Cabling ......................................................................................................... 100

Ethernet Switches ................................................................................................................. 100

Repeaters/Bridges/Gateways ..................................................................................................... 101

Technical Overview........................................................................................................................... 102

Short Circuit Current Ratings ..................................................................................................... 102

Bus Bracing or Withstand Rating .......................................................................................... 102

Integrated Equipment Rating ................................................................................................ 102

Interrupt Rating ..................................................................................................................... 102

Series Connected Short Circuit Current Ratings .................................................................. 102

Short Circuit Current Rating ................................................................................................. 102

UL Listed Short Circuit Current Ratings ............................................................................... 103

“Self-Certified” Short Circuit Current Ratings ....................................................................... 103

Selection Guide................................................................................................................................. 105

Layout Instructions ............................................................................................................... 105

Unit Designation Chart for Planning ...........................................................................................106

Dimensions ....................................................................................................................................... 107

General ...................................................................................................................................... 107

NEMA/EEMAC Type 1, Type 1A (Gasketed), or Type 12 Enclosures ................................. 107

NEMA/EEMAC Type 3R Non-Walk-In Basic Enclosures ..................................................... 108

Bottom Conduit Entry ........................................................................................................... 109

Top Conduit Entry ................................................................................................................. 111

Typical Specifications ....................................................................................................................... 112

Part 1 General ............................................................................................................................ 112

1.01 Description .................................................................................................................... 112

1.02 Submittals ..................................................................................................................... 112

1.03 Regulatory Requirements ............................................................................................. 112

1.04 Packing/Shipping .......................................................................................................... 112

1.05 Storage ......................................................................................................................... 112

1.06 Warranty .................................................................................................................................. 112

Part 2 Product ....................................................................................................................................... 112

2.01 Manufacturers ......................................................................................................................... 112

2.02 Materials .................................................................................................................................. 113

2.03 MCC Finish ............................................................................................................................. 113

2.04 Structures ................................................................................................................................ 113

2.05 Wireways ................................................................................................................................ 114

2.06 Barriers ......................................................................................................................... 114

2.07 Bussing ......................................................................................................................... 114

Model 6 Motor Control Centers

Table of Contents

607/2009

2.08 Typical Unit Construction ..............................................................................................115

2.09 Components for Typical Units .......................................................................................116

2.10 Six-Inch Unit Construction ............................................................................................116

2.11 Components for Six-Inch Units .....................................................................................117

2.12 Adjustable Frequency AC Drive Unit Construction .......................................................118

2.13 Solid-State Reduced-Voltage Starter Unit Construction ...............................................123

2.14 General Communication Cabling ..................................................................................127

2.15 Modbus® Communication Cabling ...............................................................................127

2.16 Ethernet (Modbus TCP) Communication Cabling .........................................................127

2.17 DeviceNet™ Communication Cabling ...........................................................................127

2.18 CANopen Communication Cabling ...............................................................................128

2.19 PROFIBUS DP Communication Cabling ......................................................................128

2.20 Quality Control ..............................................................................................................128

Part 3 Execution .........................................................................................................................129

3.01 Location ........................................................................................................................129

Model 6 Motor Control Centers

Introduction Product Description

07/2009

Product Description

Introduction

Motor control centers (MCCs) provide the most suitable method for grouping electrical motor control,

automation, and power distribution in a compact and economical package. Motor control centers consist

of totally enclosed, dead front, free-standing structures bolted together. These sections support and

house control units, a common bus bar for distributing power to the control units, and a network of wire

trough and conductor entrance areas for accommodating incoming and outgoing load and control wires.

The control units consist of components such as combination motor starters, branch feeder devices,

AC drives, soft starts, or lighting panelboards. Each unit is mounted in an individual, isolated

compartment having its own door. Standard MCC dimensions are 20 in. wide (including a 4 in. vertical

wireway trough) by 90 in. high (add 1.5 in. base channel and a 3 in. removable top lifting channel) by

15 or 20 in. deep. Larger sections are often required for mounting larger equipment or for providing

space for customer-mounted devices.

Two package styles are available: standard and industrial. These Model 6 feature packages allow you

to custom design the MCC to fit your specific requirements. The standard package lets you tailor the

MCC by selecting only those options that you need for an individual project, guaranteeing the optimal

cost/value balance. The industrial package includes options most often requested and specified by

industrial customers. Offering the options as part of a package reduces the possibility of leaving out

common industrial features. See the following table for a comparison of the two packages.

All features of the industrial package can be added individually to the standard version.

Option Standard Package Industrial Package

Structure Features

Vertical ground bus material Steel Copper

Horizontal bus material Tin-plated aluminum1

1Exceptions: 1600–2500 A are tin plated copper.

Tin-plated copper

Fishtape barriers Optional Included

Unit Features

Interior color Gray White

Nameplates Optional Included

X1 and X2 wired to terminal blocks Optional Included

Model 6 Motor Control Centers

Product Description Features

807/2009

Features

•Horizontal power bus is located at the top of the structure for easy installation, inspection, and

maintenance without the need to remove units.

•Non-conductive, two-piece, sliding, horizontal bus barrier provides convenient access for splicing

and maintenance without the need to remove the panels.

•Captive, four-bolt, horizontal splice bars with self-contained nuts and hardware make installation

easy and reduce the possibility of splice bar loss.

•A full-depth vertical wireway maximizes the wire pulling area. The Model 6 MCC has the largest

vertical wireway in the industry.

•Vertical bus barriers and wireway openings, when supplied, are built in 3 in. increments. This

feature allows more mounting flexibility for the units and reduces wasted space in the enclosure.

•Vertical ground bus is located in each section. This bus mates with ground stabs on the rear of

each plug-on unit to create a positive ground connection, with first make/last break operation.

•Frame is constructed with 12-gauge steel, and features welded corner channels for exceptional

structural rigidity.

•Leveling notches in the base channel provide a means of aligning the section during installation.

•Cast metal handle, an industry-exclusive feature, is more rugged than composites, and clearly

indicates disconnect status, including a ‘tripped’ circuit breaker, for added safety.

•Quarter-turn fasteners on unit and wireway doors expedite closing and opening.

•L-shaped unit door hinge pins are easily removed with a screwdriver for general maintenance.

•Each unit is fully compartmentalized, with solid side, back, and bottom plates. This feature allows

more mounting space for components and confines any potential faults within the individual unit.

•A hinged, or fold-down, unit bottom plate allows additional space for wiring and maintenance.

•Shrouded power stabs protect stabs against damage during unit maintenance, and provide a

self-aligning system for installation of units and connection to the vertical bus.

Sliding Bus Barriers

Full Depth

Vertical Wireway

(Right-Side View)

Structural Integrity

Innovative

Shrouded Power Stabs

Model 6 Motor Control Centers

Codes and Standards / NEMA/EEMAC Wiring Classes, Enclosure Types Product Description

07/2009

Codes and Standards

Model 6 Motor Control Centers are manufactured to National Electrical Manufacturers Association

(NEMA) Standard ICS 18-2001 and Electrical Equipment Manufacturers Association of Canada

(EEMAC) standards. Model 6 MCCs are also manufactured to Underwriters Laboratories (UL)

Standard 845 and bear the “UL Listed” label, where applicable. The “UL Listed” mark is applied to

vertical sections and units that are installed within those sections. It should be noted that sections and

installed units are independently listed devices. Thus, it is possible to have non-UL Listed units

installed in UL Listed vertical sections.

All sections and units listed in this catalog are UL Listed, unless otherwise noted. The Model 6 MCC

meets Canadian Standards Association (CSA) specification standards and can carry the CSA label.

Certification

Model 6 Motor Control Centers are certified by the American Bureau of Shipping (ABS) for use in

power distribution, control, and protection of motor and non-motor loads for multiple applications on

board ABS Classed Vessels, Offshore Rigs and Platforms, and Marine applications. ABS develops

and verifies conformance with standards for design, construction, and operational maintenance of

marine-related facilities. Many customers require ABS certification for products used by and for marine

facilities. The certification granted by ABS includes classification of use of the motor control center for

both Essential and/or Non-Essential Services.

NEMA/EEMAC Wiring Classes and Enclosure Types

Wiring Classes

Class 1—Independent Units

Class 1 motor control centers consist of mechanical groupings of combination motor control units,

branch feeders, other units, and electrical devices arranged in a convenient assembly. The

manufacturer completes wiring between components within each unit. Wiring between units is not

required.

Class 2—Interconnected Units

Class 2 MCCs are the same as Class 1 MCCs with the addition of manufacturer-furnished electrical

interlocking and wiring between units as specifically described in the overall control system diagrams

supplied by the purchaser.

Type A

User (field) wiring connects directly to device terminals internal to the unit. Type A wiring is provided

only on Class 1 MCCs.

Type B

User (field) control wiring connects to unit terminal block(s) in or adjacent to each motor control unit.

User load (power) wiring for Size 3 or smaller combination motor control units connects as follows:

Type B-D

User load (power) wiring connects directly to the device terminals, which are located immediately

adjacent to, and are readily accessible from, the vertical wireway.

Type B-T

User load (power) wiring connects to factory-wired power terminal blocks located in or adjacent to

each unit.

User load (power) wiring for Size 4 or larger combination motor control units and branch feeder

units connects directly to the unit device terminals.

Control Terminal Block

Model 6 Motor Control Centers

Product Description Enclosure Types / Shipping Weights

10 07/2009

Type C

User (field) control wiring and load wiring on Size 3 or smaller motor control units connects to master

terminal blocks mounted at the top or bottom of those vertical sections containing control units. Unit

control wiring and load wiring on Size 3 or smaller units are factory-wired from unit-located terminal

blocks to the master terminal blocks.

User load (power) wiring for Size 4 or larger units connects directly to the device terminals. As an option,

user load (power) wiring for all sizes of motor control units may connect directly to the device terminals

within the MCC units. See page 85 for load wiring options.

Enclosure Types

Type 1

Intended for indoor use only. Type 1 enclosures are designed primarily to provide protection against

contact with energized equipment inside. They are to be used in locations where normal service

conditions exist.

Type 1A (Gasketed)

Intended to restrict the entrance of dust and falling dirt into Type 1 enclosures. Type 1A enclosures are

not dust-tight. Neoprene gasketing is the standard material used.

Type 3R

Intended for outdoor use only. Type 3R enclosures are designed primarily to provide protection against

falling rain and sleet and remain undamaged by the formation of ice on the enclosure. They are not

intended to provide protection against conditions such as dust, internal condensation, internal icing, or

extreme heat or cold. The Model 6 Type 3R enclosure is built with galvannealed steel, which provides

a high level of resistance to corrosion when compared to standard hot or cold rolled steel with the

same paint finish.

Type 12

Intended for indoor use only. Type 12 enclosures are designed primarily to protect against dust, falling

dirt, light splashing, and dripping of non-corrosive liquid. They are not intended to provide protection

against conditions such as internal condensation.

Shipping Weights

One, two, or three vertical sections can be shipped together on a pallet. Larger MCCs are split into

shipping blocks of three sections maximum. The following table lists typical approximate shipping

weights for a normal mix of MCC equipment. Some sections, based on installed devices and width of

the section, may vary from values shown in the table.

Approximate MCC Shipping Weights

NEMA/EEMAC Enclosure Type Depth (inches) 1 Section (lbs) 2 Sections (lbs) 3 Sections (lbs)

1, 1A, 12 15 600 1200 1800

3R Non-Walk-In 151

(27.2 in. overall)

1See the NEMA/EEMAC 3R dimensions drawing on page 108.

900 1800 2700

1, 1A, 12 20 750 1500 2250

3R Non-Walk-In 201

(32.2 in. overall) 1050 2100 3150

Model 6 Motor Control Centers

Altitude Ratings / Heat Dissipation Product Description

07/2009

Altitude Ratings

The following table lists the MCC derating factors necessary at altitudes of 6,600 ft (2,000 m)

and higher.

Motor Control Center Heat Dissipation

The following table lists the approximate heat dissipation of various MCC units. This information is

often requested by engineers who are sizing HVAC equipment to cool and ventilate equipment rooms.

Values include an estimate of heat dissipated by the MCC Power Bus. To use, add the values for each

of the units in the MCC. Values are given in BTUs per hour and watts.

The values given are for “typical” applications, and include an adjustment for power bus contribution.

Make the following adjustments for special situations:

•Add 10–20 percent to the total heat dissipation for MCCs that make extensive use of relays, timers,

and other control devices.

•Add 10 percent to the total heat dissipation for MCCs with 1200–1600 A main bus.

•Add 20 percent to the total heat dissipation for MCCs with 2000–2500 A main bus.

Altitude Altitude Rating Correction Factors1

1For variable frequency drives above 3,300 ft (1,000 m), derate the output current rating by 1% for each additional 330 ft (100 m)

up to a maximum of 9,900 ft (3000 m).

For solid state reduced voltage starters above 3,300 ft (1,000 m), derate the nominal output current by 2.2% for each additional

330 ft (100 m) up to a maximum of 6,600 ft (2,000 m).

Full Load Current System Voltage Ambient Temperature

6,600 ft (2,000 m) 1.0 1.0 1.0

8,500 ft (2,600 m) 0.99 0.95 1.0

13,000 ft (3,900 m) 0.96 0.80 0.95

14,000 ft (4,300 m) 0.95 0.80 0.90

15,000 ft (4,600 m) 0.93 0.80 0.85

Typical Heat Dissipation Values1

1For programmable logic controllers, unit heat dissipation can be significant. Contact the MCC Technical Assistance Group (TAG)

for the heat dissipation of these devices.

Description Size/Rating Heat Dissipation

BTUs/hr Watts

Combination Starters (Circuit Breaker or

Fusible Disconnect)

1 270 79

2 360 106

3 720 210

4 1440 420

5 2400 700

Main and Branch Feeder Breakers

15–150 A 270 79

175–250 A 720 210

300–400 A 780 230

500–600 A 1320 390

700–800 A 2220 650

900–1200 5802 1700

1600 A 8020 2350

2000 A 12,628 3700

2500 A 27,815 8150

Main and Branch Feeder Switches

30 A 126 37

60 A 156 46

100 A 282 85

200 A 780 230

400 A 1020 300

600 A 2047 600

800 A 3242 950

1200 A 8874 2600

1600 A 15,529 4550

2000 A 24,232 7100

Model 6 Motor Control Centers

Product Description Heat Dissipation

12 07/2009

Typical Heat Dissipation Values (Continued)

Description Motor

Rated HP

@ 480V

Heat Dissipation

BTUs/hr Watts

Drive Line

Reactor

3% / 5%

Load

Reactor

or Filter

Drive Line

Reactor

3% / 5%

Load

Reactor

or Filter

Combination Altivar 61 AC drives

(variable torque rated)

1 150 27 / 41 255 44 8 / 12 75

2 150 48 / 48 255 45 14 / 14 75

3 218 68 / 68 273 64 20 / 20 80

5 389 99 / 89 307 119 29 / 26 90

7.5 491 106 / 140 324 144 31 / 41 95

10 608 147 / 147 324 178 43 / 43 95

15 741 177 / 208 375 217 52 / 61 110

20 1092 180 / 180 444 320 53 / 53 130

25 1338 184 / 184 444 392 54 / 54 130

30 1662 212 / 222 461 487 62 / 65 135

40 2447 229 / 242 495 717 67 / 71 145

50 3331 246 / 276 870 976 72 / 81 255

60 4301 1

1A 3% line reactor is standard in these drive sizes.

— / 328 870 1260 1— / 96 255

75 4928 1— / 369 836 1444 1— / 108 245

100 5690 1— / 614 921 1667 1— / 180 270

125 8447 1— / 470 887 2475 1— / 138 260

150 11002 1— / 498 904 3224 1— / 146 265

200 13016 1— / 747 990 3814 1— / 219 290

250 14676 1— / 1197 1109 4300 1— / 351 325

300 17450 1— / 2682 1024 5113 1— / 786 300

350 19717 1— / 2560 1535 5777 1— / 750 450

400 22931 1— / 2491 1621 6719 1— / 730 475

450 24665 1— / 2642 — 7227 1— / 774 —

500 52927 1— / 2379 — 8281 1— / 697 —

Combination Altivar 71 AC drives

(constant torque rated)

1 150 27 / 41 255 44 8 / 12 75

2 218 48 / 48 255 64 14 / 14 75

3 297 68 / 68 273 87 20 / 20 80

5 492 99 / 89 307 144 29 / 26 90

7.5 608 106 / 140 324 178 31 / 41 95

10 741 147 / 147 324 217 43 / 43 95

15 1092 177 / 208 375 320 52 / 61 110

20 1338 180 / 180 444 392 53 / 53 130

25 1659 184 / 184 444 486 54 / 54 130

30 2447 212 / 222 461 717 62 / 65 135

40 3331 229 / 242 495 976 67 / 71 145

50 4253 1— / 276 870 1246 1— / 81 255

60 4936 1— / 328 870 1446 1— / 96 255

75 5607 1— / 369 836 1643 1— / 108 245

100 5446 1— / 470 921 2475 1— / 138 270

125 8774 1— / 498 887 2571 1— / 146 260

150 9638 1— / 747 904 2824 1— / 219 265

200 10205 1— / 1197 990 2990 1— / 351 290

250 14146 1— / 2242 1109 4145 1— / 657 325

300 17877 1— / 2229 1024 5238 1— / 653 300

350 18556 1— / 2160 1535 5437 1— / 633 450

400 21279 1— / 2449 1621 6235 1— / 716 475

450 24719 1— / 2058 — 7243 1— / 603 —

Description Soft Start

Frame

Heat Dissipation

BTUs/hr Watts

Combination Altistart 48 Soft Start

(includes shorting contactor as standard)

10 51 15

15 51 15

20 85 25

25 85 25

30 85 25

40 85 25

50 85 25

60 85 25

75 85 25

100 85 25

125 85 25

150 171 50

200 171 50

250 171 50

300 273 80

350 273 80

400 273 80

500 273 80

Model 6 Motor Control Centers

Structure Steel Gauge Information Product Description

07/2009

Structure Steel Gauge Information

Model 6 MCCs are totally enclosed, dead front, free standing assemblies. All steel is in compliance

with UL 845/CSA requirements:

Part Description Thickness (Gauge)

Corner Channels 12

Back Plates: 20–30 in. wide 16

35 in. wide 14

End Closing Plates 16 (NEMA/EEMAC Type 3R: 12 gauge)

Unit Doors 14 and 16 (NEMA/EEMAC Type 3R: 12 gauge on outer door)

Side Channels 11

Top and Bottom Frame 12

Top and Bottom Plates 14

Base Channels 10

Lifting Angle 7

Model 6 Motor Control Centers

Application and General Information Structures and Bussing

14 07/2009

Application and General Information

Structures and Bussing

Structure

Each section provides 72 in. of vertical mounting space for MCC units. Special sections are required

for selected units such as autotransformer starters and some main breakers, drives, and soft starters.

Bussing Options and Modifications

Horizontal Bus Splice

NEMA/EEMAC Enclosure Type Depth

General Purpose Type 1

15 in. - Standard

20 in. - Optional

General Purpose Type 1 Gasketed (often referred to as Type 1A)

Industrial Duty Type 12

Outdoor Duty Type 3R Non-Walk-In

Outdoor Duty Type 3R Walk-In (Contact the Project Support and Engineering Center in Nashville.)

Main Bus Amps and Material 1

600 A tin-plated aluminum 1200 A silver-plated copper

600 A tin-plated copper 1600 A tin-plated copper (20 in. deep only)

600 A silver-plated copper 1600 A silver-plated copper (20 in. deep only)

800 A tin-plated aluminum 2000 A tin-plated copper (20 in. deep only)

800 A tin-plated copper 2000 A silver-plated copper (20 in. deep only)

800 A silver-plated copper 2500 A tin-plated copper 2

1200 A tin-plated aluminum 2500 A silver-plated copper 2

1200 A tin-plated copper

NOTE: For 3-phase, 4-wire systems, see page 26.

1Ratings shown based on 149 ° F (65 °C) max. temperature rise per UL 845. Consult the MCC Technical Assistance Group (TAG)

for current density ratings.

2Not available in NEMA/EEMAC Type 12 or 3R enclosures.

Description

Bus bar surge protection. Requires 6 in. mounting space near the incoming feeder. Not UL Listed. Not for use on ungrounded systems.

300 A vertical bus – tin-plated copper (Standard)

Substitute 600 A vertical bus – tin-plated copper

Substitute 600 A vertical bus – silver-plated copper

4 bolt splice (captive) on main/horizontal bus (Standard)

Bus Withstand Rating

Modifications to increase the bus system withstand rating to meet available fault current requirements.

Does not increase individual unit ratings.

42,000 A rms (Standard)

65,000 A rms

85,000 A rms

100,000 A rms 1

1480 V maximum

Tin-plated copper vertical ground bus

Tin-plated copper horizontal ground bus - 1/4 in. x 1 in., rated 300 A (Standard)

Tin-plated copper horizontal ground bus - 1/4 in. x 2 in., rated 600 A 2

2Standard on 2500 A horizontal bus

Silver-plated copper horizontal ground—1/4 in. x 1 in. (rated 300 A)

Silver-plated copper horizontal ground—1/4 in. x 2 in. (rated 600 A)

Optional 2 in. main/horizontal bus – tin-plated copper 2

Optional 2 in. main/horizontal bus – silver-plated copper

Insulated horizontal bus (Non-UL Listed)

Standard section (600–1600 A)

Main lug section (600–1600 A)

Main circuit breaker/fusible switch section (600–1600 A)

Model 6 Motor Control Centers

Structures and Bussing Application and General Information

07/2009

Structure Options and Modifications

Special Structures

Not available in NEMA/EEMAC Type 3R construction or reduced height sections.

Automatic Vertical

Bus Shutter

Description

12 in. high pull box

18 in. high pull box

Two-piece top plate

Bottom plate for NEMA/EEMAC Type 1 Gasketed

Drip hood (Not available with 2500A horizontal bus)

Strip heater (200 Watts at 120 V) (Not available in sections with Size 6 RVAT, bottom feed main lugs, bottom feed mains and

branches over 600 A, or distribution transformers)

Thermostat for control of strip heater (6 heaters maximum)

Seismic certification

Reduced height construction:

Structure height including base channels (without lifting

angles): 79.5 in. 73.5 in. 67.5 in.

Available unit mounting space: 60 in. 54 in. 48 in.

Amount section shortened: 12 in. 18 in. 24 in.

Application: Not available on back-to-back, corner, NEMA/EEMAC Type 3R, or sections with neutral bussing. Reduced height

construction reduces the section’s unit mounting space and does not reduce either the top or bottom horizontal wireway.

Wire tie retainers in vertical wireway

Manual vertical bus barrier closing shutters (Standard)

Automatic vertical bus shutters

Non-standard exterior color (includes one coat of Schneider Electric selected paint.) Consult factory for specifications detailing

primers, paint, thickness, and application process.

Fishtape barrier (Prevents rising of bottom-entering fishtapes into wireway. Standard on Industrial.)

Rodent barriers (Standard)

GFI receptacle (NEMA/EEMAC Type 3R Non-Walk-In)

Fluorescent light (NEMA/EEMAC Type 3R Non-Walk-In)

Description Application

Back-to-back splice transition section 2500 A Max.

Through-the-back splice 1

1Tin plated copper splice standard. Not available with neutral bus or relay sections.

1200 A Max.

Corner Sections 2500 A Max.

31.00

787

41.00

1041

12.00

305

Back-To-Back Transition Section

Top View

1.00

Between

Sections

20.00

508

25.00

635

20.00

508

25.00

635

15.00

381

20.00

508

Corner Section

Top View

Front

15.00

381

20.00

508

20.00

508

Through-the-Back Splice

Top View

1.00

Between

Sections

Dual Dimensions = INCHES

millimeters

Model 6 Motor Control Centers

Application and General Information Structures and Bussing

16 07/2009

Model 6 to Model 5 Transition Section

Model 6 MCCs will splice directly to a Model 5 MCC, provided the Model 5 structure was built after

May 1992.

If the Model 5 MCC was built prior to May of 1992, contact the MCC Technical Assistance Group

(TAG). Custom splice plates will be required and supplied with the first section in the Model 6 line-up

depending on which side of the existing Model 5 line-up the Model 6 is installed.

Switchboard to Model 6 Transition Section

Square D® brand Switchboards can be provided with bussed transitions to Model 6 Motor Control

Center line-ups. Contact the MCC TAG for details.

Bus Duct Connection

I-Line® II feeder busway compartments must always be located at the top of the section. A 12 in. high

pull box is required. I-Line II Busway should be positioned edgewise A, B, C, left-to-right as shown in

the figure below. To facilitate installation, both front and side accessibility is recommended. No

additional mounting space is required.

NOTE: Must be “I-Line II Feeder End” Style; Qwik Flange is not available. NEMA/EEMAC Type 3R is

not available. Bus duct connections are not UL Listed in MCCs.

No Main Disconnect 1

1With no main disconnect, the connection from busway to horizontal bus is made with main bus. A main lug compartment is not

required.

C/B Disconnect 2

2With a main disconnect, the connection from busway to disconnect is made with either cable or bus, depending on ampacity.

Fusible Main Disconnect 2

MCC Bus

Ampacity Width

(In.) Depth

(In.) Conn MCC Mains

Ampacity Width

(In.) Depth

(In.) Conn MCC Mains

Ampacity Width

(In.) Depth

(In.) Conn

600 A

800 A

1200 A 20 15

20 Bus 110–600 A 20 15 or 20 Cable 200–600 A 20 15 or 20 Cable

1600 A

2000 A 25 3

3A 25 in. wide section is a standard section with a 9 in. wireway and will accept plug-on units. A 72 in. unit mounting space is

available. For 3P4W (left to right orientation), a 30 in. wide section is required. For 3P4W (front to rear orientation), a 25 in. wide section

is required.

20 Bus 800–1200 A 20 20 Bus 800–1200 A 20 20 Bus

— — — — 1600–2500 A 25 20 Bus 1600–2000 A 30 20 Bus

W/2

Top View

Front

Typical

MCC

Section

D/2

ABC

Model 6 Motor Control Centers

Structures and Bussing Application and General Information

07/2009

Model 4 to Model 6 Transition Section

NOTE: Not Available In NEMA/EEMAC Type 3R Construction

Provides transition from existing Model 4 to a new Model 6 MCC. The transition requires a 12 in.

extension on the first section of the Model 6 lineup. A transition section does not affect the space

calculation when estimating the number of sections. The transition section must be ordered with at

least one Model 6 section and cannot ship separately. The Model 6 ampacity must be equal to

or less than the ampacity of the Model 4 bus. Neutral bus is not supported.

NOTE: Splice bars are included with the transition section.

The transition section will match the depth of the Model 6 MCC, and can be used to splice a

front-of-board Model 6 to an existing back-to-back Model 4 MCC (20 in. deep). The transition section

will be rear aligned with both the Model 4 and the Model 6 sections. On 3-phase, 4-wire systems, the

3-phase bus bars will splice together, but the Model 4 neutral bus bar will not be carried through in the

Model 6.

NOTE: When ordering a Model 4 to Model 6 transition section, you must provide the original Model 4

factory order number.

Basic Transition 1

1Includes 12 in. wide structure with 800 A bus as standard.

Model 4 on left and Model 6 on right

Model 6 on left and Model 4 on right

Transition Bussing Modifications

Model 4 Bus Model 6 Bus

600 A Aluminum or Copper 600 A Copper

800 A Aluminum 800 A Copper

1000 A Aluminum (2) 2 in. 1200 A Copper

1200 A Aluminum (2) 3 in. 1200 A Copper

1000 A Aluminum (1) 4 in. 1200 A Copper

1200 A Copper (2) 2 in. 1200 A Copper

1000 A Copper (1) 3 in. 1200 A Copper

1200 A Copper (1) 4 in. 1200 A Copper

1400 A Aluminum (2) 4 in. 1600 A Copper

1600 A Copper (2) 3 in. 1600 A Copper

1800 A Copper (2) 4 in. 2000 A Copper

2000 A Copper (2) 4 in. 2000 A Copper

Model 6 Motor Control Centers

Application and General Information Incoming Devices

18 07/2009

Incoming Devices

Incoming or main devices are used to connect power to the motor control center. In the majority of MCC

applications, the system is rated as 480 V, 3-phase, 3-wire. If a neutral wire connection is required, a

neutral kit can be supplied (see “3-Phase, 4-Wire Systems” on page 26).

Typically, one of three devices is used to connect power to the MCC: main lugs, main circuit breaker, or main

fusible switch. One of these devices is connected to the horizontal main bus with cable or hard bus. Cabled

or bussed branch devices or cabled starter units (those with an L, M, or P frame circuit breaker disconnect, or

600 A or larger fusible switch disconnect) cannot be installed in the same section as a main device.

As with all electrical equipment rated 600 V or less, incoming cables must be rated using the 75 °C

temperature ratings tables in the National Electrical Code® (NEC®). The incoming lugs are 194° F (90 °C)

lugs, and 194 °F (90 °C) cable can be used. However, the cable must be applied to the 75 °C ratings.

All main devices must be top- or bottom-located.

Main Lug Compartments

Main lug compartments must be specified in the absence of other incoming line provisions.

3-phase, 3-wire main lugs include neutral assembly for cable connection to other units with

solid neutrals.

Main lug units short circuit current ratings to 100,000 A are available.

Top Located Main Lug Compartments

System Amps Space (Inches) Horizontal Bus Connection

3-phase, 3-wire

600 1

1Not available @ 100,000 A.

Bussed

800

1200 12

1600 2

230 in. wide by 20 in. deep section

2000 2

2500 2

3-phase, 4-wire

600 19

800

1200 3

325 in. wide section with 9 in. wireway

1600 2

2000 2

2500 2

Bottom Located Main Lug Compartments

System Amps Space (Inches) Horizontal Bus Connection

3-phase, 3-wire

600 18

Bussed

1200 1

125 in. wide section with 9 in. wireway

1600 2

230 in. wide by 20 in. deep section

2000 2

2500 2

600 18

3-phase, 4-wire

1200 136

1600 2

2000 2

2500 2

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

Main Circuit Breakers

•Main circuit breaker units are located in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted. Mains must be mounted at the top or bottom of the MCC section.

•Thermal-magnetic, molded case circuit breakers are standard. Optional electronic trip circuit

breakers are available as shown in the tables below.

•All units are for 3-phase, 3-wire systems. 3-phase, 4-wire applications may require additional space

(see “3-Phase, 4-Wire Systems” on page 26).

Main Circuit Breaker

Thermal-Magnetic, Molded Case Circuit Breakers

Breaker Trip

Ratings (Amps)

Breaker Frame

(Amps) Breaker Type Unit Interrupting Rating (kA) Space (Inches)

208/240 V 480 V 600 V

Standard (80%) Rated

15-150 150 HG/HJ/HL

65 35 18

12 (Plug On)100 65 25

100 100 50

175-250 250 JG/JJ/JL

65 35 18

18 (Plug On)100 65 25

100 100 50

300-400 400LH653525

21 (Top Entry)

27 (Bottom Entry)

600 LI 100 100 100

450-600 600 LI 100 100 100 24 (Top Entry)

36 1 (Bottom Entry)

1Requires single shippling split.

800 800MJ656525

18 (Top Entry)

36 1 (Bottom Entry)

1200 PL/PK 100 100 50

1200 1200 PL/PK 100 100 50 21 (Top Entry)

36 1 (Bottom Entry)

1600 2

2Specify top or bottom entry.

3000 RL/RK 100 100 65 72 1

(20 W X 20 D)

2000 23000 RL/RK 100 100 65 72 1

(20 W x 20 D)

2500 23000 RL/RK 100 100 65

72 1

(25 W x 20 D)

NEMA/EEMAC

Type 1/1A only

Optional 100% Rated 3

3All 100% rated circuit breakers are molded case with Micrologic electronic trip. LE electronic trip circuit breakers include Full

Function Trip Unit with LSI tripping functions. P- and R-frame electronic trip circuit breakers include Basic 3.0 Trip Unit with LI

tripping functions.

300-400 400 LE 100 65 35 24 (Top Entry)

36 (Bottom Entry)

600 1200 PL/PK 100 100 50 18 (Top Entry)

36 1 (Bottom Entry)

800 1200 PL/PK 100 100 50 21 (Top Entry)

36 1 (Bottom Entry)

1200 21200 PL/PK 100 100 50

72 1

(20 W x 20 D)

NEMA/EEMAC

Type 1/1A only

1600 23000 RL/RK 100 100 65 72 1

(20 W x 20 D)

2000 23000 RL/RK 100 100 65

72 1

(25 W x 20 D)

NEMA/EEMAC

Type 1/1A only

Model 6 Motor Control Centers

Application and General Information Incoming Devices

20 07/2009

Optional Masterpact Power Circuit Breaker Main Units—Stored Energy/Drawout

Style/Insulated Case

Masterpact NT and NW power circuit breakers are available in Model 6 Motor Control Centers as an

incoming main device. The Masterpact NT/NW circuit breaker offered in the Model 6 MCC is a

UL489 Listed insulated case circuit breaker with drawout style mounting. These circuit breakers

contain a two-step stored energy mechanism which provides 5-cycle maximum closing in both

manually and electrically operated types.

NOTE: Masterpact circuit breakers are rated at 80% of their capacity in MCC construction.

MCC drawout main circuit breaker include the following features:

UL 845/CSA listed with UL 489 version

Stored energy breaker mechanism

Internal barriers for separating line, load, and control areas

Micrologic trip units (Standard 5.0 included, 6.0P with Ground Fault optional).

Modbus communications for Web-enabled power and control compatability is optional

Fully bussed power circuit

Control compartment including trip unit power supply and additional panel space

Optional Arc Flash version tested to show the arc flash hazard risk category referenced by NFPA 70E

All offered Masterpact circuit breakers are equipped with the Micrologic Electronic Trip System. In

Model 6, two trip unit models are available: 5.0 Basic and 6.0 Power. The MCC Masterpact NT/NW

main circuit breaker comes with Basic 5.0 trip units as standard, with LSI tripping functions: long-time

trip, long-time trip delay adjustments, short-time trip, short-time trip delay adjustment, and

instantaneous trip. The optional 6.0P Micrologic trip unit offers LSIG tripping functions: long-time trip,

long-time trip delay adjustments, short-time trip, short-time trip delay adjustments, instantaneous trip,

ground fault trip, and ground fault trip delay adjustment.

Main Circuit Breaker Unit Interrupting Ratings per UL 845/CSA

Circuit Breaker Type

(Interrupting Rating Code) 240 V

Delta 480 V

Delta or Wye 600 V

Delta or Wye

800-1200 A NT (H) 65 50 50

800-1200 A NT (L1) 100 65 1

1100 kA interrupting rating is available by ordering optional Arc Flash (LF) version.

—

800-2500 A NW (N) 65 65 50

800-2500 A NW (H) 100 100 65

800-2500 A NW (L) 100 100 65

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

Masterpact Main Circuit Breakers

Breaker

Frame Unit Type and Amps

MCC Unit Short Circuit Rating

(kA) Circuit

Breaker

Model No. Space (Inches)

240 V 480 V 600 V

Top Entry

M6MDT800H 65 50 50 NT08H

(25 W x 20 D)

M6MDT800L1 100 65 — NT08L1

M6MDT1200H 65 50 50 NT12H

M6MDT1200L1 100 65 — NT12L1

M6MDT1200NWN 1

1Top entry mains must be at the end of the MCC lineup. Top entry mains ship as two shipping splits: one 30 in. wide section for the

breaker and one 20 in. wide section (25 in. wide for 4W) as an incoming cable section. No through bus is included in the incoming

cable section. NOTE: Bottom entry can be at the end or middle of the MCC lineup.

65 65 50 NW12N 3W

Two full sections required

1 @ (30 W x 20 D)

1 @ (20 W x 20 D)

Two full sections required

1 @ (30 W x 20 D)

1 @ (25 W x 20 D)

M6MDT1200NWL 1100 100 65 NW12L

M6MDT1600N 165 65 50 NW16N

M6MDT1600L 1100 100 65 NW16L

M6MDT2000N 165 65 50 NW20N

M6MDT2000L 1100 100 65 NW20L

M6MDT2500H 1,2

2Available as NEMA/EEMAC Type 1/1A only.

100 100 65 NW25H

Bottom Entry

M6MDB800H 65 50 50 NT08H

(25 W x 20 D)

M6MDB800L1 100 65 — NT08L1

M6MDB1200H 65 50 50 NT12H

M6MDB1200L1 100 65 — NT12L1

M6MDB1200NWN 65 65 50 NW12N

3W or 4 W

72 H x 30 W

(20 D)

M6MDB1200NWL 100 100 65 NW12L

M6MDB1600N 65 65 50 NW16N

M6MDB1600L 100 100 65 NW16L

M6MDB2000N 65 65 50 NW20N

M6MDB2000L 100 100 65 NW20L

M6MDB2500H 2100 100 65 NW25H

Model 6 Motor Control Centers

Application and General Information Incoming Devices

22 07/2009

MCC Masterpact Main Accessory Groups

The MCC Masterpact drawout breaker package is offered in two accessory groups—Limited and

Enhanced—to help in selecting and pricing the most popular options. See the Accessory Group

descriptions below for the Masterpact options included in each accessory group. Refer to the

Masterpact NT/NW Universal Power Circuit Breaker catalog #0613CT0001 for a full description of the

trip units and the accessories.

Limited Accessory Group includes:

5.0 trip unit (LSI)

Sensor Plug = Unit Amp Rating

Rating plug “A”

No communications

4 Form C auxiliary switches

1 Form C overcurrent trip switch

Padlockable push button cover

Transparent cover over front of circuit breaker (NEMA/EEMAC Type 12) only)

Automatic cradle shutters with padlocking provisions

Enhanced Accessory Group includes:

6.0 P trip unit (LSIG)

Sensor Plug = Unit Amp Rating

Rating plug “A”

Modbus breaker communications module and 24 Vdc communications power supply,

unwired to MCC network

4 Form C auxiliary switches

1 Form C overcurrent trip switch

Padlockable push button cover

Transparent cover over front of circuit breaker (NEMA/EEMAC Type 12 only)

Schneider key interlock for circuit breaker

Spring charging motor (120 Vac)

Shunt trip without communications (120 Vac)

Shunt close without communications (120 Vac)

Electric reset (120 Vac)

Ground fault

Neutral CT (4-wire model only)

Automatic cradle shutters with padlocking provisions

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

Tie Breakers

Tie Breakers are used to connect two MCCs together to allow either MCC Main to feed both MCCs as

required. The tie breaker consists of a PowerPact® or Masterpact circuit breaker and hard bus

transition network to complete the connection between the power buses from each MCC. The mains of

the two MCCs may be on the outside ends or in the middle of the lineup with a tie breaker. The

Trip Rating, Frame (Amps), and Breaker Frame of the tie breaker should match those of the main.

Neutral bus is not available in the tie breaker, therefore the neutral is not continuous nor switched

through the tie. Contact factory for applications requiring continuous or switched neutral.

The standard configuration includes a manual throwover of the tie breaker. Automatic throwover

systems controlled by a programmable logic controller can be provided for PowerPact P-frame or

Masterpact NW circuit breakers in the MCC.

Description Trip

Rating

(Amps)

Frame

(Amps) Breaker

Frame Tie Breaker Total

Space (Inches)1

1Tie breaker total space will be as shown, and includes a bus transition between two MCCs and the tie breaker. Each MCC Main

must also include the key interlock option.

Tie Breaker Arrangement

Standard 80% Rated

800 800 MJ 72 (20 W x 20 D)

1200 PL/PK

1200

1200 PL/PK 72 (20 W x 20 D)

3000 Masterpact

Drawout NW

Two full sections required

1 @ (30 W x 20 D)

1 @ (20 W x 20 D)

1600–2000 3000

RL/RK

Two full sections required

2 @ (20 W x 20 D)

Masterpact

Drawout NW

Two full sections required

1 @ (30 W x 20 D)

1 @ (20 W x 20 D)

2500 3000

RL/RK

Two full sections required

2 @ (20 W x 20 D)

NEMA/EEMAC

Type 1/1A only

Masterpact

Drawout NW

Two full sections required

1 @ (30 W x 20 D)

1 @ (20 W x 20 D)

NEMA/EEMAC

Type 1/1A only

Optional 100% Rated

800 1200 PL/PK 72 (20 W x 20 D)

1200 1200 PL/PK

(20 W x 20 D)

NEMA/EEMAC

Type 1/1A only

1600–2000 3000 RL/RK

Two full sections required

2 @ (20 W x 20 D)

NEMA/EEMAC

Type 1/1A only

Tie

MCC 2MCC 1

Model 6 Motor Control Centers

Application and General Information Incoming Devices

24 07/2009

Main Fusible Switches

Main fusible switch units are located in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted. Mains must be mounted at the top or the bottom of the MCC section.

All main switches use automatic molded case switches in series with Class R fuse clips (up to

600 A) or L fuse clips (above 600 A).

All fusible units have a short circuit rating of 100,000 A.

All main switches listed are for 3-phase, 3-wire systems. 3-phase, 4-wire applications may require

additional space (see “3-Phase, 4-Wire Systems” on page 26).

Special Note for All Main Devices

Branches 450 A or larger cannot be installed in the same vertical section as the main device.

Standard Wire Lug Ranges (Mechanical)

Mechanical set-screw type lugs are supplied as standard for Model 6 MCC main, branch, and neutral line

and/or load connection. Compression crimp type lugs are available (see “Wiring Options” on page 85).

Main Fusible Switches

Maximum Fuse Size (Amps)

600 V Max. Space (Inches)

200 24 (plug-on)

400 45 (Top Entry)

54 (Bottom Entry)

600 60

800 60 (Top Entry)

601 (Bottom Entry)

1Requires a single shipping split.

1000 2

2Specify top or bottom entry.

721 (20 W X 20 D, Top Entry)

601 (Bottom Entry)

1200 721 (20 W X 20 D, Top Entry)

601 (Bottom Entry)

1600 721 (30 W X 20 D)

2000 72 1 (30 W X 20 D)

Main Lugs

Main Lug Amps Lug Wire Range Lugs Per Phase/Neutral

600 3/0–500 kcmil 2

800 3

1200 3/0–600 kcmil 41

1Up to 750 kcmil wire size can be used if a 12 in. high pull box is ordered.

1600 3/0–750 kcmil 6

2000, 2500 6

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

Main and Branch Circuit Breaker Lug Ranges

Circuit Breaker

Frame Amps Standard Lug Wire Range Lugs Per

Phase

H 150 14–3/0 1

J 175 4–4/0 1

J 250 3/0–350 kcmil1

1Wire size is limited to 250 kcmil on Compac™ 6 units.

LA/LH 125–400 (2) 1–250 kcmil

(1) 1–600 kcmil

LI/LX/LE/LXI 300–600 (2) 4/0–500 kcmil 1

M/P 700–800 3/0–500 kcmil (standard) 3

3/0–600 kcmil Cu or Al; 750 kcmil compacted aluminum only

(optional) 2

P 1000–1200

3/0–500 kcmil (standard) 4

350–600 kcmil Cu or Al (optional) 3

3/0–600 kcmil Cu or Al; 750 kcmil compacted aluminum only

(optional) 3

R 1600–2500 1/0–750 kcmil 6

NT Drawout 800–1200 3/0–500 kcmil 4

NW Drawout 800–2500 3/0-750 kcmil (top entry)

3/0-500 kcmil (bottom entry) 8

Main and Branch Fusible Switch Lug Ranges

Main Switch Amps Standard Lug Wire Range Lugs Per Phase

30 #12–4 1

60 #8–1 1

100 #14–2 1

200 #1–300 kcmil (branches)

#4–4/0 1 (mains)

1Lugs for up to 250 kcmil wire are available. Contact factory for AL250JD lug kit if larger lugs are needed.

400 (2) #1–250 kcmil

(1) #1–600 kcmil

600

800

3/0–500 kcmil 3

3/0–600 kcmil Cu or Al;

750 kcmil compacted aluminum only (optional) 2

1000

1200

3/0–500 kcmil (standard) 4

350–600 kcmil (standard) 3

3/0–600 kcmil Cu or Al;

750 kcmil compacted aluminum only (optional) 3

1600

2000 1/0–750 kcmil 6

Neutral Lug Ranges

Application Lug Wire Range

100 A Main or Branch (2) #14–1/0

200–250 A Main or Branch (2) #4–300 kcmil

400–600 A Main or Branch (2) 3/0–500 kcmil

800 A Main or Branch (3) 3/0–500 kcmil

1000 A Main or Branch

1200 A Main or Branch (4) 3/0–750 kcmil

1600–2500 A Main or Branch

800–1200 A NT Drawout (4) 3/0–500 kcmil

1200–2500 A NW Drawout (8) 3/0–750 kcmil (Top Entry)

(8) 3/0–500 kcmil (Bottom Entry)

600–2500 A Main Lugs See Main Lugs Table on page 24

Neutral Rating 1250 A Max. (4) 3/0–750 kcmil

(14) #6–300 kcmil

600–800 A (1) 1.5 in. x 1/4 in. Cu

Holes drilled for customer variations

1200–2000 A (2) 1.5 in. x 1/4 in. Cu

Max. 100% Rating is 1250 A

Model 6 Motor Control Centers

Application and General Information Incoming Devices

26 07/2009

3-Phase, 4-Wire Systems

If the motor control center contains only motor loads, and no future 4-wire loads are anticipated, it is

not necessary to bring the neutral conductor into the MCC. As an option, a neutral lug assembly

(Figure 1 in “4-Wire Examples” on page 27) can be provided in the incoming main section to terminate

a neutral conductor. Additional lugs can be added for connections to the neutral.

When 4-wire loads are present in the MCC, solid neutral bussing (Figure 2 in “4-Wire Examples” on

page 27) can be provided in individual sections and connected to provide a continuous neutral bar. A

neutral lug termination option must be selected for the incoming main section when selecting solid

neutral bus in the MCC. Lugs are not provided when selecting solid neutral bus, but holes are

pre-drilled to accommodate user-mounted lugs. As an option, neutral conductors for loads can be

connected to the MCC neutral bus via a neutral bus drop located in each vertical wireway for easy

access (Figure 2 in “4-Wire Examples” on page 27).

A special 12 in. neutral distribution unit (Figure 3 in “4-Wire Examples” on page 27) can be provided to

terminate branch device neutral connections in 15 in. deep sections. Such branches should be located

close to the main for easier interconnections. A neutral lug termination option must be selected when

selecting a neutral distribution unit.

Description Application Space (Inches)

Neutral lug termination 1

(Provides termination for fourth wire on

3-phase, 4-wire systems)

1Neutrals in units are factory-connected when the neutral distribution option or neutral bus drop option are chosen.

110–150 A main or branch 2

2Except for Compac 6 units.

175–250 A main or branch 0

300–400 A main or branch 3

3When >35 kA SCCR or electronic trip, an additional 6 in. of space is required on top located mains and an additional 3 in. for

bottom located mains and branches.

450–600 A top located main breaker 18

450–600 A 6

600–800 A main switch or top located branch switch 5 in. added to width

600–800 A bottom located branch switch 0

1000–2000 A main or branch switch 5 in. added to width

800–2500 A main or branch breaker

600–2500 A main lugs

See Main Lug

Compartments,

3-phase, 4-wire

system, page 18

Neutral distribution unit , 4

4Neutral distribution units must go in the next adjacent section on bottom feed full section mains. 12 in. of additional space is not

required on top-feed, full section (72 in.) mains.

Neutral rating 1250 A max. 12

Solid neutral bus 5

(20 in. deep sections required)

5Not available with through-the-back splice.

600–800 A (1)1.5 in. x 0.25 in. cu 0

1200–2500 A (2) 1.5 in. x 0.25 in. cu

max. 100% rating is 1200 A

Neutral bus drop , 6, 7

(Provides vertical extension of solid neutral bus

into vertical wireway to facilitate neutral

connections from units)

625 in. wide section required when used with a cabled main or branch breaker devices (450–600 A branches and 400–600 A

mains). Neutral bus drop is not available in sections with 800 A or larger top main or any branch breakers , or 600 A or larger top

main or any branch switches. However, the 4-wire Neutral Lug Termination will be factory-connected to the MCC neutral and

additional holes are drilled for unit load neutrals on the main/branch neutral termination.

7600–1200 A bottom entry, fusible switch main will add 12 in. to unit height.

Provides vertical extension of solid neutral bus into vertical

wireway to facilitate neutral connections from units. 0

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

4-Wire Examples

Service Entrance Label (not available on Main Lug Systems)

Description Application Space

(Inches)

3-phase, 3-wire system with a main breaker/switch 15–2500 A1

1Ground fault protection is added to all 1000 A and larger mains when a service entrance is specified and the system voltage is 480 V.

3-phase, 4-wire system with a main breaker/switch

NOTE: A neutral lug termination option and/or

solid neutral bus option is required on 4-wire systems.

110–150 A without GFI 3

110–150 A with GFI 3

175–250 A without GFI 0

175–250 A with GFI 0

300–400 A without GFI 2

2When SCCR is >35 kA on 300–400 A applications, an additional 15 in. of space is required for top feed installations and an

additional 9 in. for bottom feed.

300–400 A with GFI 3

3Requires an additional 15 in. of space for top feed applications.

450–600 A without GFI 6

450–600 A with GFI 12 4

4Requires an additional 6 in. of space when the metering option is selected.

800–2500 A circuit breaker with GFI 0

600–2000 A switch with GFI

800 A circuit breaker without GFI 15

1200 A circuit breaker (80% rated) without GFI

600–800 A switch without GFI 12

1000–1200 A bottom incoming switch without GFI

Any other main without GFI (except as shown above) 0

Disconnect

Cable

Disconnect

Neutral Lug

Termination

Assembly

Figure 3

Disconnect

Figure 1 Figure 2

Neutral Lug

Termination

Assembly

Solid

Neutral

Bus

Neutral Lug

Termination

Assembly

Neutral

Distribution

Unit

Neutral Drops

Model 6 Motor Control Centers

Application and General Information Incoming Devices

28 07/2009

PowerLogic® Circuit Monitor

PowerLogic series 3000 and 4000 circuit monitors are multifunction digital metering and monitoring

devices capable of replacing a variety of meters, relays, transducers, and other components. Data

available for local viewing includes metered values plus extensive min/max, alarm, and analog/digital

input data. Circuit monitor data is available for viewing and recording via standard RS-485, RS-232

(series 4000 only) or optional Ethernet communications. A 4-line x 20-character LCD type display with

customizable displays is provided as standard. An optional vacuum fluorescent display with

backlighting is also available. The circuit monitors offer waveform capture, event/alarm logging and

custom alarms. Included with the circuit monitor are a current transformer, current transformer shorting

terminal block, current/voltage module, voltage connections, and power supply.

PowerLogic CM4000

Description Application

Monitors

CM3250 with LCD Display Circuit Monitor, data logging, waveform capture, 8MB memory, LCD Display

CM3350 with LCD Display Circuit Monitor, same features as CM3250 with Disturbance Monitoring

CM4250 with LCD Display Instrumentation, data logging, waveform and disturbance capture, programmable logic, 2 option card slots

CM4000T with LCD Display CM4000 features plus high-speed voltage transient detection and capture.

CMDLC 4-line x 20 character Liquid Crystal Display with backlighting

CMDVF 4-line x 20 character Vacuum Fluorescent Display with I/R port and proximity sensor substituted for

standard LCD display

I/O Modules

IOC 44 1, 2

1Only one slot is available for I/O Modules or the Ethernet ECC21 card on CM3000.

2Two slots are available for two IOC44 I/O Modules or one IOC44 I/O Module and one Ethernet ECC21 card on CM4250/4000T.

Field Installable I/O card with 4 status inputs, 3 relay (10 A) outputs, and 1 pulse output (KYZ)

IOX0404 3

3Available on CM4250/4000T only. Choose only one module per circuit monitor.

I/O Extender module with 4 status inputs and 4 analog inputs (4 to 20 mA)

IOX2411 3I/O Extender module with 4 inputs (32 Vdc), 2 outputs (60 Vdc), 1 analog input (0-5 Vdc),

1 analog output (4-20 mA)

IOXO8 3I/O Extender module with 8 status inputs (120 Vac)

IOX 3I/O Extender module only, no installed I/O, accepts up to 8 I/O modules with maximum of 4 analog I/O

Accessories

ECC21 1, 2 Ethernet communications card, 100 Mbps fiber and 10/100 Mbps UTP Ethernet port and 1 RS-485

master port

Circuit Monitor Space Requirements

Device Type Additional Space Requirements (Inches)

Main Unit Monitor Unit 1

1The circuit monitor unit must be placed adjacent to (below, above, or next to) the main unit.

Total

Main Lugs

600–1200 A 0 12 12

1600–2500 A 0 12 2

2If space is not available for the circuit monitor, an option is available to integrate the metering equipment on the door of

main. This option requires no additional space for the circuit monitor module. On bottom located mains, this option protrudes 6.2 in.

out from the door and reduces customer aisleway by the same dimension.

Main Circuit Breaker

110–250 A 6

300–400 A 9 21

450–600 A 6 18

800 A 15 27

1200 A 80% rated 15 27

1200 A 100% rated; 1600–2500 A 0 12

Main Fusible Switch

200 A 6

Top Located, 400 A 3 15

Bottom Located, 400 A 618

600–800 A 12 24

Top Located, 1000–2000 A 012

Bottom Located, 1000–2000 A 12 24

1600–2000 A 012

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

PowerLogic Power Meter

The PowerLogic Series 800 Power Meter is a high-performance power monitoring component able to

provide advanced power measurement capabilities in a compact MCC plug-in unit. It is designed for

use in basic power metering applications and can replace conventional metering devices such as

ammeters, voltmeters, and watt-hour meters while providing powerful capabilities not offered by

analog metering. This option can offer an economical advantage in MCCs requiring multiple analog

meters for voltage, current, and watt-hours. With its easy to use intuitive interface and self guiding

menus, the large antiglare and back lit display makes this meter the easiest to navigate and use.

•Monitor current, voltage, power, and energy simultaneously

•Individual harmonic measurements on current and voltage

•THD measurement

•Modbus® RS-485 Communications and compatible with Transparent Ready® Equipment

The Power Meter offering below is for MCC incoming main devices only. The MCC power meter option

includes the power meter module, front mounted display for easy viewing, main and control voltage

fusing, and necessary current transformers with shorting terminal blocks in the main device. Optional

modules can be added to the power meter to increase type and number of inputs and outputs. For

other power meter applications, contact the MCC Technical Assistance Group (TAG).

Description Application System Space

(Inches)

Meters

PM820 Power Meter door mounted display + module with instrumentation functions,

THD measurement, alarming, and 80 kb logging.

3-phase, 3-wire

See “Power

Meter Space

Requirements”

on page 30

3-phase, 4-wire

PM850 Power Meter door mounted display + module with instrumentation functions,

THD measurement, alarming, 800 kb logging, and waveform capture.

3-phase, 3-wire

3-phase, 4-wire

PM870

Power Meter door mounted display + module with instrumentation functions,

THD measurement, alarming, 800 kb logging, configurable waveform capture,

and sag/swell detection.

3-phase, 3-wire

3-phase, 4-wire

I/O Modules

Up to 2 modules of the same or different types can be mounted on the meter to expand the I/O.

PM8M26 I/O module with 2 digital outputs (relays), 6 digital inputs

—0

PM8M2222 I/O module with 2 digital outputs, 2 digital inputs, 2 analog outputs and 2 analog

inputs

Accessories

PM8ECC

Ethernet Communications Card includes: instantaneous readings, advance

security, TRE Level 1, Web browser based Diagnostics and Register Reader,

10/100BaseTx Ethernet, RS-485, and support for 2-wire and 4-wire

daisy-chains. Supported protocols: ModbusTCP/IP, FTP, SNMP MIB2, ARP,

UDP, and HTTP.

Available on all Power Meter 800 Series meters.

—0

Model 6 Motor Control Centers

Application and General Information Incoming Devices

30 07/2009

Power Meter Space Requirements

Device Type

Additional Space

Requirements (Inches)

Main Unit Meter Unit 1

1The power meter unit must be placed adjacent to (below, above, or next to) the main unit.

Total

Main Lugs

600–1200 A 066

1600–2500 A 06

Main Circuit Breaker

110–250 A 6

300–400 A 915

450–600 A 612

800 A 15 21

1200 A 80% rated 15 21

1200 A 100% rated; 1600–2500 A 0 6

Main Fusible Switch

200 A 6

Top-located, 400 A 39

Bottom-located, 400 A 612

600–800 A 12 18

Top-located, 1000–1200 A 0 6

Bottom-located, 1000–1200 A 12 18

1600–2000 A 0 6

PowerLogic Power Meter and Circuit Monitor Comparison

Feature Model

PM820 Model

PM850 Model

PM870 Model

CM3250 Model

CM3350 Model

CM4250 Model

CM4000T

Amps, volts, power, energy, PF X X XXXXX

Communications: RS485 Modbus X X XXXXX

Communications: optional Ethernet X X XXXXX

Demand readings, THD X X XXXXX

Trending and forecasting XXXX

ITIC/SEMI F47/NEMA MG-1-1998 Optional Optional Optional Optional

Extended memory XX

Alarm event log X X XXXXX

High speed (100ms) alarms X XXXXX

Disturbance (10ms) alarms X X X

Transient (1 microsec) alarms X

Interval min./max./avg. log XXXX

Billing log X X X

Waveform capture X XXXXX

Disturbance waveform capture XXXX

100ms event recordings XXX

Infrared port Optional Optional Optional Optional

Analog inputs/outputs (maximum) (4) (4) (4) (0) (0) (4) (4)

Digital inputs/outputs (maximum) (17) (17) (17) (8) (8) (24) (24)

Programmable math and LOGIC functions X X

Downloadable firmware X X XXXXX

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

Analog Meter

Metering Options1

1Total space of unit and meter options shall not exceed 72 in.

Description Application Metering

Sequence Space

(Inches)

AC ammeter with transfer switch and two current

transformers and shorting terminal blocks

(Three CTs provided on 4-wire systems)

110–250 A main circuit breakers Hot 15

When used with voltmeter 0

15–250 A branch circuit breaker Cold 15

When used with voltmeter 0

300–600 A main/branch circuit breakers Cold 9

When used with voltmeter 0

800–2500 A main/branch circuit breakers Not available 2

2Analog metering is not available on PowerPact M-, P-, and R-frame units. Use an optional Micrologic ammeter, power, or harmonic

trip unit on the circuit breaker, or a PowerLogic circuit monitor/power meter for switch applications.

30–200 A main/branch fusible switches Cold 15

When used with voltmeter 0

400 A and above main/branch fusible

switches Cold 9

When used with voltmeter 0

600–2000 A main/branch fusible

switches Not available 2

600–1200 A top located main lugs Hot 9

When used with voltmeter 0

600–1200 A bottom main lugs Hot 0

1600–2500 A main lugs Hot 0

AC voltmeter with VM transfer switch and two potential

transformers (Three PTs provided on 4-wire systems)

Main and branch feeders2Cold 9

Main lugs Hot 0

Elapsed time meter 3

3Not available on Compac 6 starters.

Starter unit 0

AC ammeter with current transformer Starter unit 3

1% meters (switchboard type) 6

Ground detection lights Main breaker/switch only 12

Main lugs 12

Fuse for metering circuit For special applications only 0

Current transformer (CT) For special applications only 3

Potential transformer (PT) For special applications only 6

Shorting terminal blocks for metering CTs Option for starters, branch feeders

(standard on PowerLogic devices) 0

Model 6 Motor Control Centers

Application and General Information Incoming Devices

32 07/2009

Transient Voltage Surge Suppressor (TVSS) Units for MCC Incoming Mains

General Information

NOTE: TVSS units must be installed on grounded power distribution systems. Installation on an

ungrounded power distribution system is not recommended. See the figure below for proper

transformer feed to the MCC where TVSS units can be applied.

•Must be located as close as possible to the incoming main provision.

•TVSS units for 4-wire systems must include a solid neutral bus and/or neutral lug termination

assembly in the MCC.

•TVSS components for installation in MCC-mounted panelboards or on distribution transformer

secondaries should use a panel-mounted TVSS component.

All MCC TVSS units for MCC incoming mains include as standard:

•Flange-mounted disconnect

•Door-mounted diagnostic lights for each phase

•Audible alarm with Test/Disable/Enable switch

•TVSS with EMI/RFI filter

•UL 1449 Standard, Second Edition, Tested and Recognized Component

•UL 1283 Recognized Component

•cUL Certified Component

•Motor Control Center certifications per UL 845, CSA (Canada) and NOM (Mexico)

•Individually fused suppression modules utilizing surge-rated fuses

•Each suppression MOV is thermally protected for low current faults

•High energy parallel MOV design for Category A, B, C3 exposure levels per IEEE C62.41 criteria

•Can be applied to MCCs with 100 kAIC short circuit withstand rating

•Designed as standard MCC unit construction to enable new or retrofit applications

•One Form C alarm contact

Selection

1. Select the TVSS Model based on:

a. System voltage (480 Vac, 240 Vac, 208 Vac, or 600 Vac).

b. Desired surge current capacity (120 kA, 160 kA, or 240 kA). If a surge current capacity higher than

240 kA is required, more than one TVSS unit can be added to the MCC to bring it to the desired

surge current capacity. When adding more than one TVSS unit to an MCC, all units should be

mounted in the same section, if possible, and as close as possible to the MCC incoming main unit.

c. Type of loads to be protected (branch loads, service entrance applications, or large individual

loads).

d. If backup redundancy is a requirement, two TVSS units should be added in the same MCC

section and in adjacent mounting spaces.

2. Select the TVSS model based on the main power transformer connection (see figure above),

desired surge current capacity, and type of loads to be protected.

Transformer Secondary

Grounded Wye

High Leg Delta

Model 6 Motor Control Centers

Incoming Devices Application and General Information

07/2009

Model IMA TVSS (120 kA Surge Rating)

•For protection of small MCC lineups and non-critical loads

•120,000 A per phase surge current capacity

Model IMA TVSS (160kA Surge Rating)

•For protection of branch loads/electronics, large individual loads, and drives/soft starts

•160,000 A per phase surge current capacity

Model IMA TVSS (240 kA Surge Rating)

•For application on high exposure systems for service entrance protection with large power

electronic loads (drives/soft starts)

•240,000 A per phase surge current capacity

Additional Options

Customer Incoming Power Connection to MCC System Voltage Space

(Inches)

Three phases with or without neutral connected to MCC (3- or 4-wire MCC). Wye

secondary transformer with grounded neutral.

208 Vac

480 Vac

600 Vac

Transformer with high-leg delta secondary. Three phases with or without neutral

connected to MCC (3- or 4-wire MCC).

NOTE: B-phase is configured as the high leg.

240 Vac

Customer Incoming Power Connection to MCC System Voltage Space

(Inches)

Three phases with or without neutral connected to MCC (3- or 4-wire MCC). Wye

secondary transformer with grounded neutral.

208 Vac

480 Vac

600 Vac

Transformer with high-leg delta secondary. Three phases with or without neutral

connected to MCC (3- or 4-wire MCC).

NOTE: B-phase is configured as the high leg.

240 Vac

Customer Incoming Power Connection to MCC System Voltage Space

(Inches)

Three phases with or without neutral connected to MCC (3- or 4-wire MCC). Wye

secondary transformer with grounded neutral.

208 Vac

480 Vac

600 Vac

Transformer with high-leg delta secondary. Three phases with or without neutral

connected to MCC (3- or 4-wire MCC).

NOTE: B-phase is configured as the high leg.

240 Vac

Description Space

(Inches)

Surge Counter—Door mounted display that counts the number

of transients entering the facility through the suppressor. 0

Model 6 Motor Control Centers

Application and General Information Branch Feeder Units

34 07/2009

Branch Feeder Units

Circuit Breaker Branch Feeder Units

•Branch feeder units may be located in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted.

•Select trip rating and desired unit interrupting rating. (The unit interrupting rating is equal to the

breaker rating.)

•Units listed are for 3-phase, 3-wire systems. 3-phase, 4-wire applications may require additional

space (see “3-Phase, 4-Wire Systems” on page 26). Four-wire applications are not available on

Compac™ 6 units.

Compac 6, H-frame,

150A, Circuit Breaker

Branch Feeder Unit

Thermal-Magnetic Molded Case Circuit Breakers

Breaker Trip

Rating (Amps) Breaker Frame

(Amps) Breaker

Type Unit Interrupting Rating (kA) Space (Inches)

208/240 V 480 V 600 V

Standard (80%) Rated

15–150 150

HG 65 35 18

(Compac 6, Plug-on)

HJ 100 65 25

HL 100 100 50

175–250 250

JG 65 35 18

JJ 100 65 25

JL 100 100 50

15–150 150

HG 65 35 18 12

(Plug On)

HJ 100 65 25

HL 100 100 50

175–250 250

JG 65 35 18 18

(Plug On)

JJ 100 65 25

JL 100 100 50

300–400 400 LA 42 30 22 27

(Plug On)

LH 65 35 25

600 LI 100 100 100

450–600 600 LI 100 100 100 36 1

1Specify top or bottom entry.

800 800 MJ 65 65 25 18 (Top Entry)

18 2 (25 W, Bottom Entry)

2Top located in section with 9 in. vertical wireway for bottom cable entry.

1200 PL/PK 100 100 50

1200 1200 PL/PK 100 100 50 21 (Top Entry)

21 2 (25 W, Bottom Entry)

Optional 100% Rated 3

3All 100% rated circuit breakers are molded case with Micrologic electronic trip. LE electronic trip circuit breakers include Full

Function Trip Unit with LSIG tripping functions. P and R-frame electronic trip circuit breakers include Basic 3.0 Trip Unit with LI

tripping functions.

300–400 400 LE 100 65 35 36 1

600 1200 PL/PK 100 100 50 18 (Top Entry)

18 2 (25 W, Bottom Entry)

800 1200 PL/PK 100 100 50 21 (Top Entry)

21 2 (25 W, Bottom Entry)

1200 1200 PL/PK 100 100 50 72 4 (20 W x 20 D)

NEMA/EEMAC Type 1/1A only

4Requires single shipping split.

Model 6 Motor Control Centers

Branch Feeder Units Application and General Information

07/2009

Fusible Switch Branch Feeder Units

Branch feeder units may be located in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted.

Branch feeder units up to 100 A use a bladed switch disconnect. Above 100 A, the disconnect is an

automatic molded case switch.

Class H (0–600 A) and Class L (800–1200 A) fuse clips are provided as standard, except

Compac 6, six inch units, which use Class J fuse clips. Class R fuse clips can be provided for

30–600 A switches.

All fusible switch units have a short circuit rating of 100,000 A.

Fuses are not included as standard.

Units listed are for 3-phase, 3-wire systems. 3-phase, 4-wire applications may require additional

space (see “3-Phase, 4-Wire Systems” on page 26). Four-wire applications are not available on

Compac 6 units.

NOTE: Only one 400 A or larger main disconnect, top located main lug, or starter unit can be installed

per section. Only one 450 A or larger cabled/bussed branch can be installed per section.

Fusible Switch Branch

Feeder Unit

Main Fusible Switches—600 V Max.

Maximum Fuse Size

(Amps) Space (Inches)

6 1 (Plug-on)

1Compac 6 units.

100

12 (Plug On)60

100

200 24 (Plug On)

400 51

6002

2Specify top or bottom exit.

60 (top exit)

60 3 (25 W, bottom exit)

3Top located in section with 9 in. vertical wireway for bottom cable entry.

800260 (top exit)

60 2 (25 W, bottom exit)

1000272 4 (25 W x 20 D)

4Requires single shipping split.

1200272 4 (30 W x 20 D)

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

36 07/2009

Combination Starter Units

Combination starter units combine the requirements of motor overload and short circuit protection into

one convenient package. Starter units are provided with Schneider Electric Type S or TeSys® D-Line

contactors, thermal or solid-state overloads, and fusible switch or circuit breaker disconnects.

Full Voltage Non-Reversing (FVNR) Starters with Circuit Breakers

FVNR combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections, except

where noted.

All Compac™ 6, NEMA-rated, six-inch starters use GJL frame Mag-Gard® motor circuit protectors

(MCPs). All standard height starters with MCP frames through 250 A use PowerPact® electronic motor

circuit protectors. All starters with MCP frames above 250A use L- and P-frame Mag-Gard motor circuit

protectors. Thermal-magnetic circuit breakers may be substituted for motor circuit protectors on starter

units. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Combination Starter Unit

with Circuit Breaker

Disconnect

Starter Horsepower NEMA Size MCP Frame

(Amps) Space

(Inches)

208 V 240 V 480 V 600 V

0.33 0.5 1

—1

1Compac 6 units.

113 7

357.5 15

57.510 30

551010130 12

7.5 — — 50

—

1210 25 50

15 — 100

——

1820 25 50 100

25 30 — 150

—— 60

100

2140 75 100 150

50 100 — 250

50 60 125 150 5250 42 2

2When the thermal-magnetic circuit breaker option is chosen, the space requirement is 48 in.

75 100 200 200 400 48

100 — 250 300 6400 72 (20 W x 20 D)

150 200 400 400 600

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Full Voltage Non-Reversing Vacuum Starters with Circuit Breakers

Vacuum contactor combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep

sections, except where noted.

All vacuum starter units with circuit breaker disconnects use PowerPact electronic motor circuit

protectors (MCPs) or L-frame or PowerPact M- or P-frame thermal magnetic (TM) circuit breakers. All

units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower NEMA Size MCP Frame or

TM Trip/Frame

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

——— 60

100 MCP

2140 40 75 100 150 MCP

— 50 100 — 250A MCP

50 — — 150

200/400 TM

— 60 125 — 225/400 TM

60 75 150 200 250/400 TM

75 — — — 300/400 TM

— 100 200 350/400 TM

———250

6 600/800 TM 72 (20 W x 20 D)

100 125 250 300

125 150 300 400

150 — 350 —

— 200 400 —

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

38 07/2009

Application-Rated Compac 6 Starters—Full Voltage Non-Reversing with Circuit Breakers

All Compac 6 application-rated, six-inch starters use TeSys® D-Line contactors and GJ frame

Mag-Gard adjustable instantaneous trip breakers (UL Listed for 100,000 A at 480 V short circuit

rating). Compac 6 application-rated six-inch starters will mount in 20 in. wide by 15 in. or 20 in. deep

sections. Select application rated units based on system voltage and motor full load amps.

Compac 6 Units

Application-Rated FVNR Combination Starters—With Mag-Gard Circuit Breaker (480 V Max.)

Starter Ampacity Overload Relay

Ampacity Range 1

1Maximum overload relay ampacity when used on Compac 6 units.

Circuit

Breaker

(Amps)

Space

(Inches)

208 V 240 V 480 V

1 1 1 0.63 to 1.0

1.6 1.6 1.6 1.0 to 1.6

2.1 2.1 2.1 1.6 to 2.1

2.5 2.5 2.5 2.1 to 2.5

74 4 4 2.5 to 4.0

4.8 4.8 4.8 4.0 to 4.8

5.5 5.5 5.5 4.8 to 5.5

7 7 7 5.5 to 7.0

9 9 — 7.0 to 9.0

— — 7.6 7.0 to 7.6

— 9.6 — 9.0 to 9.6

11 — 9.0 to 11

— — 9 7.6 to 9.0

— — 11 9.0 to 11.0

— 11 — 9.6 to 11.0

12 12 12 11 to 12.0

— — 14 12.0 to 14.0

17 17 — 12.0 to 17.5

22 22 — 17.5 to 22.0

— — 17 14 to 17

— — 21 17 to 21

23 23 — 22 to 23

— — 23 21 to 23

30 30 30 23 to 30

34 34 34 30 to 34

37 37 — 34 to 37 75

42 42 — 37 to 42

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Full Voltage Reversing (FVR) Starters with Circuit Breakers

FVR combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections, except

where noted. All starters with motor circuit protector (MCP) frames through 250 A use PowerPact

electronic motor circuit protectors. All starters with MCP frames above 250 A use L-frame Mag-Gard

motor circuit protectors. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage Reversing Vacuum Starters with Circuit Breakers

Vacuum contactor combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep

sections, except where noted. All vacuum starter units with circuit breaker disconnects use PowerPact

electronic motor circuit protectors (MCP) or L-frame thermal magnetic (TM) circuit breakers as

indicated. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower NEMA Size MCP Frame

(Amps) Space

(Inches)

208 V 240 V 480 V 600 V

5 5 10 10 130 18

—7.5—— 50

——— 15

1810 10 25 25 50

—15—— 100

——— 30

2720 25 50 50 100

25 30 — — 150

——— 60

100

3340 40 75 100 150

— 50 100 — 250

75 100 200 200 5 400 72 (25 W)

Starter Horsepower NEMA Size MCP Frame or

TM Trip/Frame

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

——

100 4

100 MCP

2140 75 150 MCP

50 100 250 MCP

50 — — 150

200/400 TM

— 60 125 — 225/400 TM

60 75 150 200 250/400 TM

75 — — — 300/400 TM

— 100 200 — 350/400 TM

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

40 07/2009

Application-Rated Compac 6 Starters—Full Voltage Reversing with Circuit Breakers

All Compac 6 application-rated, six-inch starters use TeSys D-Line contactors and GJ frame Mag-Gard

adjustable instantaneous trip breakers (UL Listed for 100,000 A at 480 V short circuit rating).

Compac 6 application-rated six-inch starters will mount in 20 in. wide by 15 in. or 20 in. deep sections.

Select application rated units based on system voltage and motor full load amps.

Application-Rated FVR Combination Starters – With Mag-Gard® Circuit Breaker (480 V Max.)

Starter Ampacity Overload Relay

Ampacity

Range1

1Maximum overload relay ampacity when used on Compac 6 units.

Circuit

Breaker

(Amps)

Space

(Inches)

208 V 240 V 480 V

1 1 1 0.63 to 1.0

1.6 1.6 1.6 1.0 to 1.6

2.1 2.1 2.1 1.6 to 2.1

2.5 2.5 2.5 2.5 to 4.0

74 4 4 2.5 to 4.0

4.8 4.8 4.8 4.0 to 4.8

5.5 5.5 5.5 4.8 to 5.5

7 7 7 5.5 to 7.0

— — 7.6 7.0 to 7.6

9 9 — 7.0 to 9.0

— 9.6 — 9.0 to 9.6

11 — — 9.0 to 11

— — 9 7.6 to 9.0

— — 11 9.0 to 11.0

— 11 — 9.6 to 11

12 12 12 11.0 to 12.0

— — 14 12.0 to 14.0

17 17 — 12.0 to 17.5

22 22 — 17.5 to 22.0

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Reduced Voltage Autotransformer (RVAT) Starters with Circuit Breakers

RVAT combination starters mount in standard 20 in. wide by 20 in. deep sections. Sections with RVAT

starters require single shipping splits. All RVAT starter units with circuit breaker disconnects use

thermal-magnetic (TM) circuit breakers. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Reduced Voltage Autotransformer (RVAT) Vacuum Starters with Circuit Breakers

RVAT vacuum contactor combination starters mount in standard 20 in. wide by 20 in. deep sections.

Sections with RVAT starters require single shipping splits. All RVAT starter units with circuit breaker

disconnects use thermal magnetic (TM) circuit breakers. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower NEMA Size TM

Trip/Frame

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

——— 30

80/150

48 (20 D)

— — 30 — 100/150

— — — 40 110/150

15 — — — 125/150

20 25 50 50 150/150

——— 60

175/250

60 (20 D)25 30 60 75 200/250

40 50 100 100 250/250

50 — — 150

200/400

72 (25 W X 20 D)

60 125 — 225/400

60 75 150 200 250/400

75 — — — 300/400

— 100 200 — 350/400

———250

6600/800 72 (30 W x 20 D)

100 125 250 300

———350

125 150 300 400

150 — 350 —

— 200 400 — 800/800

Starter Horsepower NEMA Size TM

Trip/Frame

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

——— 60

175/250

60 (20 D)25 30 60 75 200/250

40 50 100 100 250/250

50 — — 150

200/400

72 (25 W x 20 D)

— 60 125 — 225/400

60 75 150 200 250/400

75 — — — 300/400

— 100 200 — 350/400

———250

6600/800 72 (30 W x 20 D)

100 125 250 300

———350

125 150 300 400

150 — 350 —

— 200 400 — 800/800

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

42 07/2009

Full Voltage 2-Step Part-Winding (FVPW) Starters with Circuit Breakers

Part-winding combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections,

except where noted. Part-winding starters use a separate motor circuit protector (MCP) for each of the

two motor windings. All starters with MCP frames through 250 A use PowerPact electronic motor

circuit protectors. All starters with MCP frames above 250 A use L-frame Mag-Gard motor circuit

protectors. All units are UL Listed.

Each MCP has an external operating mechanism. Part-winding starters require six thermal units.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage 2-Speed 1-Winding Starters (Consequent Pole) with Circuit Breakers

Two-speed combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections,

except where noted. All starters with motor circuit protector (MCP) frames through 250 A use

PowerPact electronic motor circuit protectors. All starters with MCP frames above 250 A use L-frame

Mag-Gard motor circuit protectors. All units are UL Listed.

Motor windings are Wye connected as standard. Open Delta connection is available.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower NEMA Size MCP Frame

(Amps) Space

(Inches)

208 V 240 V 480 V 600 V

5 51015

130 30

10 10 15 — 50

— — 25 25 250 30

20 25 40 40 100

— — 50 60 3100 36

40 50 75 75 150

———1004150 54

75 75 150 150 250

150 150 350 350 5 400 72 (25 W x 20 D)

Starter Horsepower

NEMA

Size

MCP

Frame

(Amps)

Space

(Inches)

Constant Horsepower Constant Or Variable Torque

208 V 240 V 480 V 600 V 208 V 240 V 480 V 600 V

5 5 7.5 7.5 5 7.5 10 10 1 30 21

—— 1015——— 15

247.510202010102525 50

————— 15—— 100

10— 2530——— 30

51 1

1When using an ambient compensated, bimetal overload, 60 in. of mounting space is required.

20 25 40 40 20 25 50 50 100

————25 30—— 150

—— 5060——— 60

100

6030 40 75 75 40 40 75 100 150

— — — — — 50 100 — 250

60 75 150 150 75 100 200 200 5 400 72 (25 W)

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Full Voltage 2-Speed 2-Winding Starters (Separate Winding) with Circuit Breakers

Two-speed combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections,

except where noted. All starters with MCP frames through 250 A use PowerPact electronic motor

circuit protectors. All starters with MCP frames above 250 A use L-frame Mag-Gard motor circuit

protectors. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage 2-Speed Reversing Starters with Circuit Breakers

This table lists the option to provide reversing contactors and control to a standard 2-speed starter.

The reversing contactors will be the same NEMA size as the 2-speed starter contactor. The control

circuit/control circuit transformer should be sized for the additional contactor load.

Starter Horsepower

NEMA

Size

MCP

Frame

(Amps)

Space

(Inches)

Constant Horsepower Constant Or Variable Torque

208 V 240 V 480 V 600 V 208 V 240 V 480 V 600 V

5 5 7.5 7.5 5 7.5 10 10 1 30 21

—— 10 5——— 15

247.510202010102525 50

————— 15—— 100

10 — 25 30 — — — 30

3020 25 40 40 20 25 50 50 100

— — — — 25 30 — — 150

— — 50 60 — — — 60

100

3330 40 75 75 40 40 75 100 150

— — — — — 50 100 — 250

60 75 150 150 75 100 200 200 5 400 72 (25 W)

Add Reversing to 2-Speed Starter

Application 2-Speed Starter Size Space (Inches)

Reversing in both speeds

Reversing in low seed only

Reversing in high speed only

112

212

318

4 1

125 in. wide section required when a circuit breaker disconnect is used.

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

44 07/2009

Wye-Delta Closed Transition Starters with Circuit Breakers (Non-UL Listed)

Wye-Delta Closed Transition combination starters will mount in standard 20 in. wide by 15 in. or 20 in.

deep sections, except where noted. All Wye-Delta starter units with circuit breaker disconnects use

thermal magnetic (TM) circuit breakers.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower1

1Wye-Delta starter motor information sheet is required with each Wye-Delta starter.

NEMA

Size

Trip/Frame

(Amps) Space (Inches)2

2Space requirements listed are for resistor banks that meet standard Wye-Delta starting characteristics. Additional space may be

required for other Wye-Delta applications. Contact the MCC TAG for layout information.

208 V 240 V 480 V 600 V

1.5255

15/150

2 3 7.5 7.5 20/150

3 5 10 10 30/150

5 — 15 15 40/150

— 7.5 — — 50/150

7.5 10 — — 60/150

10 — — — 70/150

——— 20

40/150

— — 20 30 60/150

— — 25 — 70/150

15 15 30 40 90/150

20 25 40 — 100/150

— — 50 50

100/150

72 (30 W)

25 — — — 110/150

30 75 75 125/150

30 40 — — 150/150

40 — — — 175/250

— 50 — — 200/250

— — — 100

150/150

Two full sections required

2 @ (20 W x 20D)

— — 100 — 175/250

50 — — 150 225/250

— 75 150 — 250/250

60 — — — 300/400

— — — 250

300/400

Two full sections required

1 @ (20 W x 20 D)

1 @ (30 W x 20 D)

75 100 250 300 350/400

— 125 — — 400/400

125 150 300 —

150 — — —

— — — 350 6Three full sections required

2 @ (20 W x 20 D)

1 @ (30 W x 20 D)

— — 350 400

— 200 400 500

Three full sections required

1 @ (20 W x 20 D)

1 @ (25 W x 20 D)

1 @ (30 W x 20 D)

200 250 500 600

250 300 — 700

300 350 600 —

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Wye-Delta Open Transition Starters with Circuit Breakers (Non-UL Listed)

Wye-Delta Open Transition combination starters will mount in standard 20 in. wide by 15 in. or 20 in.

deep sections, except where noted. All Wye-Delta starter units with circuit breaker disconnects use

PowerPact thermal magnetic (TM) circuit breakers.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower1

1Wye-Delta starter motor information sheet is required with each Wye-Delta starter.

NEMA Size TM

Trip/Frame

(Amps) Space (Inches)2

2Space requirements listed are for resistor banks that meet standard Wye-Delta starting characteristics. Additional space may be

required for other Wye-Delta applications. Contact the MCC TAG for layout information.

208 V 240 V 480 V 600 V

1.5 2 5 5

15/150

2 3 7.5 7.5 20/150

3 5 10 10 30/150

5 — 15 15 40/150

—7.5—— 50/150

7.5 10 — — 60/150

10 — — — 70/150

——— 20

40/150

— — 20 30 60/150

— — 25 — 70/150

15 15 30 40 90/150

20 25 40 — 100/150

— — 50 50

100/150

25 — — — 110/150

— 30 75 75 125/150

30 40 — — 150/150

40 — — — 175/250

— 50 — — 200/250

———100

150/150

72 (20 W)

— — 100 — 175/250

50 — — 150 225/250

— 75 150 — 250/250

60 — — — 300/400

———250

300/400

72 (30 W)

75 100 250 300 350/400

— 125 — — 400/400

125 150 300 —

150 — — —

———3506Two full sections required

1 @ (20 W x 20 D)

1 @ (30 W x 20 D)

— — 350 400

200 400 500

6Two full sections required

1 @ (25 W x 20 D)

1 @ (30 W x 20 D)

200 250 500 600

250 300 — 700

300 350 600 —

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

46 07/2009

Full Voltage Non-Reversing (FVNR) Starters with Fusible Switch Disconnects

FVNR combination starters will mount in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted. All FVNR starter units with fusible switch disconnects are provided with Class H fuse clips.

Class R fuse clips can be provided at no additional charge. Fusible disconnect combination starters

Sizes 5 and 6 use molded case automatic circuit interrupters in series with fuse clips.

NOTE: Do not use renewable link fuses in fused switches.

All Compac 6, NEMA-rated, six-inch units use Class J fuses (rated for 100,000 AIR at 600 V).

Compac 6 units mount in 20 in. wide by 15 in. or 20 in. deep sections. Up to twelve Compac 6 units

can be installed in a Model 6 vertical section.

Motor Control Center unit short circuit current ratings to 100,000 A are available.

Full Voltage Non-Reversing Vacuum Starters with Fusible Switch Disconnects

FVNR vacuum combination starters will mount in 20 in. wide by 15 in. or 20 in. deep sections, except

where noted. All FVNR vacuum starters with fusible disconnects are provided with Class J fuse clips.

Fusible disconnect combination starters Sizes 5 and 6 use molded case automatic circuit interrupters

in series with fuse clips.

Motor Control Center unit short circuit current ratings to 100,000 A are available.

Starter Type and Horsepower NEMA

Size

Fusible

Switch

(Amps) Space (Inches)

208 V 240 V 480 V 600 V

551010

130 61

1Compac 6 starters.

7.52

25 hp maximum with solid state overload relays.

7.5 — — 60

551010

130

127.527.5 — — 60

10 15 25 25 2

20 25 50 50 3100 18

25 30 — — 200 30

40 50 100 100 4

75 100 200 200 5 400 72

150 200 400 400 6 600 72

(30 W x 20 D)

Starter Horsepower NEMA Size Fusible Switch

(Amps) Space (Inches)

208 V 240 V 480 V 600 V

40 50 100 100 4 200 30

75 100 200 200 5 400 72

150 200 400 400 6 600 72 (30 W x 20 D)

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Application-Rated Compac 6 Starters—Full Voltage Non-Reversing with

Fusible Disconnects

All Compac 6 application-rated, six-inch starters use TeSys D-Line contactors and Class J fuses (rated

for 100,000 AIR at 600 V). Compac 6 application-rated six-inch starters will mount in 20 in. wide by 15 in.

or 20 in. deep sections. Select application rated starters based on system voltage and motor full load

amps.

Starter Ampacity Overload Relay

Ampacity

Range 1

1Maximum overload relay ampacity range when used in Compac 6 starters.

Fusible

Switch

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

11110.63 to 1.0

1.6 1.6 1.6 1.6 1.0 to 1.6

2.5 2.5 2.5 2.5 1.6 to 2.5

44442.5 to 4.0

5.5 5.5 5.5 5.5 4.0 to 5.5

7776.15.5 to 7.0

— — 7.6 — 7.0 to 7.6

9 9 — — 7.0 to 9.0

— 9.6 — — 9.0 to 9.6

11 — — — 9.0 to 11

— — — 7 6.1 to 7.0

— — — 9 7.0 to 9.0

— — 9 — 7.6 to 9.0

— — — 11 9.0 to 11

— — 12 — 9.0 to 12

— 12 — — 9.6 to 12

12 — — — 11 to 12

— — 14 — 12 to 14

17 17 — — 12 to 17.5

22 22 — — 17.5 to 22

— — — 12 11 to 12

— — — 17 12 to 17

— — 17 — 14 to 17

— — 23 23 17 to 23

23 23 — — 22 to 23

— — — 27 23 to 27

30 30 30 23 to 30

— — 34 — 30 to 34

37 37 — — 30 to 37

42 42 — — 37 to 42

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

48 07/2009

Full Voltage Reversing (FVR) Starters with Fusible Switch Disconnects

FVR combination starters will mount in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted. All FVR starter units with fusible switch disconnects are provided with Class H fuse clips as

standard. Class R fuse clips are available. Size 5 fusible disconnect combination starters use a molded

case automatic circuit interrupter in series with fuse clips. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage Reversing Vacuum Starters with Fusible Switch Disconnects

Vacuum combination starters will mount in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted. All vacuum starter units with fusible disconnects are provided with Class J fuse clips. These

starters use molded case automatic circuit interrupters in series with fuse clips.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower NEMA Size Fusible

Switch

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

551010

130

187.5 7.5 — — 60

10 15 25 25 2 60

20 25 50 50 3 100 27

40 50 100 100 4 200 39

75 100 200 200 5 400 72 (25 W)

Starter Type and Horsepower NEMA

Size F/S

Amps Space (Inches)

208 V 240 V 480 V 600 V

40 50 100 100 4 200 39

75 100 200 200 5 400 72 (25 W)

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Application-Rated Compac 6 Starters—Full Voltage Reversing with Fusible Disconnects

All Compac 6 application-rated, six-inch starters with fusible switch disconnects use TeSys D-Line

contactors and Class J fuses (rated for 100,000 AIR at 600 V). Compac 6 application-rated, six-inch

starters will mount in 20 in. wide by 15 in. or 20 in. deep sections. Select application rated units based

on system voltage and motor full load amps.

Starter Ampacity Overload Relay

Ampacity

Range 1

1Maximum overload relay ampacity range when used in Compac 6 starters.

Fusible

Switch

(Amps)

Space

(Inches)

208 V 240 V 480 V 600 V

1 1 1 1 0.63 to 1.0

30 6

1.6 1.6 1.6 1.6 1.0 to 1.6

2.5 2.5 2.5 2.5 1.6 to 2.5

44442.5 to 4.0

5.5 5.5 5.5 5.5 4.0 to 5.5

— — — 6.1 5.5 to 6.1

7 7 7 — 5.5 to 7.0

— — 7.6 — 7.0 to 7.6

9 9 — — 7.0 to 9.0

— 9.6 — — 9.0 to 9.6

11 — — — 9.0 to 11

— — — 7 6.1 to 7.0

— — — 9 7.0 to 9.0

— — 9 — 7.6 to 9.0

— — — 11 9.0 to 11

— — 12 — 9.0 to 12

— 12 — — 9.6 to 12

12 — — — 11 to 12

— — 14 — 12 to 14

17 17 — — 12 to 17.5

22 22 — — 17.5 to 22 60

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

50 07/2009

Reduced Voltage Autotransformer (RVAT) Starters with Fusible Switch Disconnects

RVAT combination starters will mount in 20 in. wide by 15 in. or 20 in. deep sections, except where

noted. Sections with RVAT starters require single shipping splits. All RVAT starter units with fusible

disconnects are provided with Class H fuse clips as standard. Class R fuse clips are available. Fusible

disconnect combination starters Sizes 5 and 6 use molded case automatic circuit interrupters in series

with fuse clips.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Reduced Voltage Autotransformer Vacuum Starters with Fusible Switch Disconnects

Sections with RVAT starters require single shipping splits. Provided with Class J fuse clips. Fusible

disconnect combination starters Sizes 5 and 6 use molded case automatic circuit interrupters in series

with fuse clips. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage 2-Step Part-Winding (FVPW) Starters with Fusible Switch Disconnects

Part-winding starters use a fusible disconnect with separate fuse clips for each of the two motor

windings. Each switch has an external operating mechanism. Part-winding starters require six thermal

units. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Type and Horsepower NEMA Size Fusible

Switch

(Amps) Space (Inches)

208 V 240 V 480 V 600 V

20 25 50 50 3 100 54 (20 D)

40 50 100 100 4 200 72 (20 D)

75 100 200 200 5 400 72 (25 W x 20 D)

150 200 400 400 6 600 72 (50 W x 20 D)

Starter Type and Horsepower NEMA Size Fusible

Switch

(Amps) Space (Inches)

208 V 240 V 480 V 600 V

40 50 100 100 4 200 72 (20 D)

75 100 200 200 5 400 72 (25 W x 20 D)

150 200 400 400 6 600 72 (50 W x 20 D)

Starter Horsepower NEMA Size MCP Frame

(Amps) Space

(Inches)

208 V 240 V 480 V 600 V

55101513030

—— 25252 6030

— — 50 60 3 100 42

— — — 100 4 200 66

150 150 350 350 5 400 72 (25 W)

Model 6 Motor Control Centers

Combination Starter Units Application and General Information

07/2009

Full Voltage 2-Speed, 1-Winding Starters (Consequent Pole) with Fusible Switch

Disconnects

Two-speed combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections,

except where noted. Motor windings are Wye connected as standard. Available as Open Delta

connected. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage 2-Speed, 2-Winding Starters (Separate Winding) with Fusible Switch

Disconnects

Two-speed combination starters will mount in standard 20 in. wide by 15 in. or 20 in. deep sections,

except where noted. All units are UL Listed.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Full Voltage 2-Speed Reversing Starters with Fusible Switch Disconnects

The table below lists the option to provide reversing contactors and control to a standard 2-speed

starter. The reversing contactors will be the same NEMA size as the 2-speed starter contactor. The

control circuit/control circuit transformer should be sized for the additional contactor load.

Starter Type and Horsepower

NEMA

Size

Fusible

Switch

(Amps)

Space

(Inches)

Constant Horsepower Constant or Variable Torque

208 V 240 V 480 V 600 V 208 V 240 V 480 V 600 V

5 5 7.5 7.5 5 5 10 10 130 21

————7.57.5—— 60

7.510202010 152525 2 60 24

20 25 40 40 25 30 50 50 3 100 51 1

1When using an ambient compensated, bimetallic overload relay, 60 in. of mounting space is required.

30 40 75 75 40 50 100 100 4 200 66

60 75 150 150 75 100 200 200 5 400 72 (25 W)

Starter Type and Horsepower

NEMA

Size

Fusible

Switch

(Amps)

Space

(Inches)

Constant Horsepower Constant or Variable Torque

208 V 240 V 480 V 600 V 208 V 240 V 480 V 600 V

5 5 7.5 7.5 5 5 10 10 130 21

— — — — 7.5 7.5 — — 60

7.5102020 10 15 25 25 2 60 24

20 25 40 40 25 30 50 50 3 100 30

30 40 75 75 40 50 100 100 4 200 39

60 75 150 150 75 100 200 200 5 400 72 (25 W)

Add Reversing to 2-Speed Starter

Application 2-Speed Starter Size Space (Inches)

Reversing in both speeds

Reversing in low speed only

Reversing in high speed only

112

212

318

424

Model 6 Motor Control Centers

Application and General Information Combination Starter Units

52 07/2009

Wye-Delta Closed Transition Starters with Fusible Switch Disconnects (Non-UL Listed)

Wye-Delta Closed Transition combination starters will mount in standard 20 in. wide by 15 in. or 20 in.

deep sections, except where noted.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Wye-Delta Open Transition Starters with Fusible Switch Disconnects (Non-UL Listed)

Wye-Delta Open Transition combination starters will mount in standard 20 in. wide by 15 in. or 20 in.

deep sections, except where noted.

Motor Control Center units are available with short circuit ratings up to 100,000 A.

Starter Horsepower1

1Wye-Delta starter motor information sheet is required with each Wye-Delta starter.

NEMA

Size

Fusible

Switch

(Amps) Space (Inches)2

2Space requirements listed are for resistor banks that meet standard Wye-Delta starting characteristics. Additional space may be

required for other Wye-Delta applications. Contact the MCC TAG for layout information.

208 V 240 V 480 V 600 V

10 10 15 15 1 60 60

20 25 40 40 2 100 66

40 50 75 75 3 200 72 (30 W)

60 75 150 150 4 400

Two full sections required

1 @ (25 W x 20 D)

1 @ (30 W x 20 D)

150 150 300 300 5 600

Three full sections required

2 @ (25 W x 20 D)

1 @ (30 W x 20 D)

300 350 600 700 6 800

Three full sections required

2 @ (25 W x 20 D)

1 @ (35 W x 20 D)

Starter Horsepower1

1Wye-Delta starter motor information sheet is required with each Wye-Delta starter.

NEMA

Size

Fusible

Switch

(Amps) Space (Inches)2

2Space requirements listed are for resistor banks that meet standard Wye-Delta starting characteristics. Additional space may be

required for other Wye-Delta applications. Contact the MCC TAG for layout information.

208 V 240 V 480 V 600 V

10 10 15 15 1 60 30

20 25 40 40 2 100 42

40 50 75 75 3 200 72 (20 W)

60 75 150 150 4 400

150 150 300 300 5 600 72 (30 W)

300 350 600 700 6 800

Two full sections required:

1 @ (25 W x 20 D)

1 @ (30 W x 20 D)

Model 6 Motor Control Centers

AC Drive Units Application and General Information

07/2009

Altivar® 61 and 71 AC Drives

Altivar 61 and 71 AC drives in MCCs offer economical, general purpose drives in a high density,

space-saving package. Units are available in NEMA/EEMAC Type 1, Type 1 Gasketed (Type 1A),

Type 3R Outdoor-Rated, and Type 12 MCC enclosures in the following ranges.

MCC Package Features

As standard, basic MCC Altivar 61 and 71 AC drive units include:

Altivar 61 or 71 AC Drive

Operator keypad display mounted on the front of the unit

Disconnect circuit breaker or fusible switch

3% line reactors above 50 hp Variable Torque (VT) or 40 hp Constant Torque (CT) @ 480 V,

above 25 hp VT or 20 hp CT @ 240 V, and above 20 hp VT/CT @ 208 V

Cooling fans

UL 845 listed for 100,000 AIC short circuit withstand at 480 V

Control station plate with space for five 22 mm operators or three 30 mm (9001 Type K) operators

MCC Altivar AC Drive units are plug-on style saddles (up to 50 hp VT) or full sections which can be

factory/field-installed in Model 6 MCCs or field-installed in Model 5 MCCs. There are no preferred or

restricted locations for mounting any Altivar AC Drive in Square D® brand MCC sections.

Circuit breakers used on the MCC Altivar AC Drive basic units are thermal-magnetic type. As an option,

PowerPact electronic motor circuit protectors can be substituted for the thermal-magnetic circuit breakers

up to 250 A. Fusible switches used on the MCC Altivar AC Drive units are bladed switches (molded case

switches above 100 A) with Class J fuse clips installed between the drive and the switch.

NOTE: Fusible disconnect drives do not include the power fuses installed at the factory.

Factory Options:

Bypass contactors available as either integrated in the drive or barriered from the drive unit (<250 hp)

Line or load contactor: <125 hp Variable Torque (VT) or 100 hp Constant Torque (CT)

Line reactors (3 or 5%)

NOTE: 3% line reactors are standard above 50 hp VT or 40 hp CT @ 480V, above 25 hp VT or

20 hp CT @ 240V, and above 20 hp CT/VT @ 208V

Motor protecting filters or output reactors

Pilot devices 22 mm or 30 mm

Unit extensions to provide additional panel space

Wired and unwired control relays

Motor Ratings Altivar 61 Variable

Torque Rated Altivar 71 Constant

Torque Rated

NEMA/EEMAC Type 1 and Type 1A (Gasketed) Enclosures

NOTE: Determine the type of application the

drive will be applied to: variable torque or

constant torque. Variable torque ratings are to

be used on centrifugal pumps and fan loads

which are considered light duty with maximum

110% current overload. The Altivar 61 AC

Drive is used for variable torque applications

and has many specific features dedicated for

pump and fan applications. Constant torque

ratings are to be used on all other types of

loads to provide normal duty and maximum

overload capacity of 170%. The Altivar 71 AC

Drive is used for constant torque application

and has increased rating and performance for

demanding loads.

460 Vac, 3-phase, 60 Hz 1–500 hp 1–450 hp

230 Vac, 3-phase, 60 Hz 1–50 hp 1–40 hp

200 Vac, 3-phase, 60 Hz 1–40 hp 1–40 hp

NEMA/EEMAC Type 3R Enclosures

460 Vac, 3-phase, 60 Hz

Use constant torque

1–40 hp

230 Vac, 3-phase, 60 Hz 1–20 hp

200 Vac, 3-phase, 60 Hz 1–20 hp

NEMA/EEMAC Type 12 Enclosures

460 Vac, 3-phase, 60 Hz 1–100 hp 1–75 hp

230 Vac, 3-phase, 60 Hz 1–50 hp 1–40 hp

200 Vac, 3-phase, 60 Hz 1–40 hp 1–40 hp

Model 6 Motor Control Centers

Application and General Information AC Drive Units

54 07/2009

Altivar AC Drive Features

Performance

Torque: sensorless flux vector control (ATV71 can include sensor for tighter control)

Frequency range: 0.1 to 500Hz

Speed range: 1 to 100 open loop

Overtorque = 170% of nominal torque for 60 seconds (220% for 2 seconds) for ATV71 Constant

Torque rated drives and 110% of nominal torque for 60 seconds for ATV61 Variable Torque rated

drives

Auto-tuning

Dynamic speed regulation

Protective Features

Motor and inverter thermal protection

Short-circuit between phases and between phase and ground

Main supply and motor phase loss

Mains undervoltage and overvoltage

Degraded operation on voltage dip

Auto restart

Catch on the fly with speed search

Monitoring and Indication

Door-mounted, LCD type operator keypad displays setup parameters and the last fault occurrence

with plain text display. Factory preset for the most common adjustments and the control schemes

ordered with the unit. Security to prevent accidental adjustments is provided by a password. Programs

are saved in the keypad, allowing storage and retrieval of four different programs between multiple

drive units.

Other features include:

Real time display of:

— Drive state (running, ready, accelerating, decelerating, etc.)

— Reference frequency (in Hz)

— Output frequency (in Hz)

— Motor speed (in RPM)

— Motor current (in amps)

— Mains voltage (in volts)

— Motor voltage (in volts)

— Output power (in watts)

— Motor thermal state (in %)

— Drive thermal state (in %)

— Energy consumed (Wh)

— Last fault

— Run time (hrs)

One normally open contact indication of drive running (closes on run)

One normally closed contact indication of drive fault (opens on fault)

Standard Analog output for motor current, motor frequency, ramp output, motor power and motor

torque.

Standard Modbus or CANopen serial communication port

Model 6 Motor Control Centers

AC Drive Units Application and General Information

07/2009

Options

Commissioning software for personal computers

I/O extension cards

120 Vac interface card

Controller Inside option card

Modbus® plus communication card

Uni-Telway/Modbus communication card

Ethernet communication card

DeviceNet™ communication card

PROFIBUS communication card

“Basic” Drive Power Circuit

• Consist of disconnect switch and drive

pre-programmed for selected options if applicable.

• Unit is UL 845 Listed for 100,000 A short circuit

current.

• Includes operator LCD keypad/display mounted on

front of the unit.

• Pilot Devices are optional and are available as

22 mm XB4 or XB5 type pilot devices, or 30 mm

9001 Type K pilot devices.

• Control power transformer (480 V/120 V), if

necessary, for enclosure ventilation fans is

included.

Model 6 Motor Control Centers

Application and General Information AC Drive Units

56 07/2009

Variable Torque Rated 480 V Drives with Circuit Breaker Disconnects

Motor Rated Horsepower

@ 460 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1 and

1A (Gasketed) NEMA/EEMAC Type 12

12.1

12 24

23.4

34.8

57.6 15 30

7.5 11

10 14 24

15 21

20 27 27

25 34

30 40

45 45

40 52

50 65

60 77

72 (20 W) 72 (20 W)

75 96

100 124

125 156 72 (25 W x 20 D)

Not available in

NEMA/EEMAC Type 12

150 180

72 (30 W x 20 D)

200 240

250 302

300 361

72 (35 W x 20 D)

350 414

400 477

450 515

500 590

Variable Torque Rated 480 V Drives with Fusible Switch Disconnects

Motor Rated Horsepower

@ 460 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

12.1

12 24

23.4

34.8

57.6

15 30

7.5 11

10 14 24

15 21

20 27 27

25 34

30 40

45 48

40 52

50 65

60 77

72 (20 W) 72 (20 W)

75 96

100 124

Model 6 Motor Control Centers

AC Drive Units Application and General Information

07/2009

Variable Torque Rated 240 V Drives with Circuit Breaker Disconnects

Motor Rated Horsepower

@ 230 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

14.2

12 24

26.8

311

5 15.2 15 30

7.5 22 24 36

10 28

15 42

45 45

20 54

25 68

30 80

72 (20 W) 72 (20 W)

40 104

50 130

Variable Torque Rated 240 V Drives with Fusible Switch Disconnects

Motor Rated Horsepower

@ 230 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

14.2

12 24

26.8

311

5 15.2 15 30

7.5 22 24 36

10 28

15 42

45 48

20 54

25 68

30 80

72 (20 W) 72 (20 W)

40 104

50 130

Variable Torque Rated 208 V Drives with Circuit Breaker Disconnects

Motor Rated Horsepower

@ 200 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

1 4.6 12 24

27.5

15 30

311

5 16.7

7.5 24 24 36

10 31

15 46 45 45

20 59

25 75

72 (20 W) 72 (20 W)

30 88

40 114

Model 6 Motor Control Centers

Application and General Information AC Drive Units

58 07/2009

Variable Torque Rated 208 V Drives with Fusible Switch Disconnects

Motor Rated Horsepower

@ 200 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

1 4.6 12 24

27.5

15 30

311

516.7

7.5 24 24 36

10 31

15 46 45 48

20 59

25 75

72 (20 W) 72 (20 W)

30 88

40 114

Constant Torque Rated 480 V Drives with Circuit Breaker Disconnects

Motor Rated Horsepower

@ 460 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

12.1

12 24

23.4

34.8

57.6

15 30

7.5 11

10 14 24 36

15 21

20 27 27

25 34

45 45

30 40

40 52

50 65

72 (20 W) 72 (20 W)

60 77

75 96

100 124 72 (25 W x 20 D)

Not available in NEMA/EEMAC

Type 1

125 156

72 (30 W x 20 D)

150 180

200 240

250 302

72 (35 W x 20 D)

300 361

350 414

400 477

450 515

Model 6 Motor Control Centers

AC Drive Units Application and General Information

07/2009

Constant Torque Rated 480 V Drives with Fusible Switch Disconnects

Motor Rated Horsepower

@ 460 V Maximum Continuous

Output Amps

Space

(Inches)

NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

12.1

12 24

23.4

34.8

57.6

15 30

7.5 11

10 14 24 36

15 21

20 27 27

25 34

45 48

30 40

40 52

50 65

72 (20 W) 72 (20 W)

60 77

75 96

Constant Torque Rated 208/240 V Drives with Circuit Breaker Disconnects

Motor Rated Horsepower Maximum Continuous

Output Amps

Space

(Inches)

@ 200 V @230 V NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

— 1 4.6/4.2 12 24

— 2 7.5/6.8

3 3 11/9.6 15 30

5 5 16.7/15.2

7.5 7.5 24/22 24 36

10 10 31/28

15 15 46/42 45 45

20 20 59/54

25 25 75/68

72 (20 W) 72 (20 W)

30 30 88/80

40 40 114/104

Constant Torque Rated 208/240 V Drives with Fusible Switch Disconnects

Motor Rated Horsepower Maximum Continuous

Output Amps

Space

(Inches)

@ 200 V @230 V NEMA/EEMAC Type 1

and 1A (Gasketed) NEMA/EEMAC Type 12

— 1 4.6/4.2 12 24

— 2 7.5/6.8

3 3 11/9.6 15 30

5 5 16.7/15.2

7.5 7.5 24/22 24 36

10 10 31/28

15 15 46/42 45 48

20 20 59/54

25 25 75/68

72 (20 W) 72 (20 W)

30 30 88/80

40 40 114/104

Model 6 Motor Control Centers

Application and General Information Soft Start Units

60 07/2009

Combination Altistart® 48 Soft Start Units

Altistart 48 (ATS48) MCC soft start units are available from 11–604 A in NEMA/EEMAC Type 1, Type 1A

(Gasketed), Type 12, and Type 3R MCC enclosures. Units are available for three phase, 60 Hz, 208 V,

240 V, 480 V, or 600 V, 3- or 4-wire power systems. The Altistart 48 soft start in MCCs can provide soft

starting (reduced voltage) and deceleration along with machine and motor protection of standard NEMA

B-Design three-phase squirrel cage asynchronous motors in the following power ranges:

3–200 hp @ 208 V

5–250 hp @ 230 V

10–500 hp @ 460 V

15–600 hp @ 575 V

The MCC soft start units integrate the latest technology Altistart 48 soft start from Schneider Electric

into a combination starter package for MCCs. MCC soft start units include a shorting contactor, shunt

trip input power disconnect, door-mounted keypad, and 120 Vac control circuitry. TeSys® D- and

F-Line contactors are standard (NEMA-type contactors are optional). All packages and options are

UL 845 Listed for a minimum 65,000 Amp short circuit rating up to 600V (ratings of 100,000 A @ 600 V

are available with fuses).

All soft starter units with circuit breaker disconnects through 250 A and 800–1200 A frames use

PowerPact® thermal magnetic (TM) circuit breakers. All soft starter units with 400–600 A frame

disconnects use L-frame thermal-magnetic (TM) circuit breakers. The fusible switch disconnects used

on MCC soft start units are automatic molded case switches. Provisions for Class J or L fuses are

provided. Fuses are not installed at the factory. All units are UL Listed.

Selection

The ATS48 controller must be selected on the basis of 3 main criteria:

Main voltage supply: Three-phase AC voltage: 208, 240, 480, or 600 V

The power and the nominal current (motor FLA) indicated on the motor nameplate

The type of application and the operating cycle. The application types are:

— Standard duty

— Severe duty

NOTE: Standard or severe duty applications define the limiting values of the current and the duty

cycle ratings.

Standard Duty Applications

In standard duty applications, the ATS48 controller is designed to provide:

Starting at 400% nominal motor current (In) for 23 seconds or at 300% nominal motor current (In)

for 46 seconds from a cold state

Starting at 300% nominal motor current (In) for 23 seconds or at 400% nominal motor current (In)

for 12 seconds with a load factor of 50% and 10 starts per hour or an equivalent thermal cycling

The motor thermal protection conforms to Class 10 overload protection.

Severe Duty Applications

In severe duty applications, the ATS48 controller is designed to provide:

Starting at 400% nominal motor current (In) for 48 seconds or at 300% nominal motor current (In)

for 90 seconds from a cold state

Starting at 400% nominal motor current (In) for 25 seconds with a load factor of 50% and 5 starts

per hour or an equivalent thermal cycling

The motor thermal protection conforms to Class 20 overload protection.

Model 6 Motor Control Centers

Soft Start Units Application and General Information

07/2009

Contact the MCC TAG for additional application information for those applications requiring:

2-speed or delta-wye motors

The ATS48 can operate with a 2-speed motor. A motor demagnetizing period must elapse before

changing from low speed to high speed in order to avoid antiphase between the line supply and the

motor, which would generate very high currents.

Motors other than NEMA Design B

High efficiency motors

Low slip motors

Power factor correction capacitors

Do not connect power factor correction capacitors to the terminals of a motor controlled by an

ATS48 soft start. The power factor capacitors must be controlled and connected to a line side

contactor sequenced by the ATS48 at end of starting.

Controller oversizing of more than 50%

Multi-motor applications

Motors may be connected in parallel provided that the power limit of the starter is not exceeded

(the sum of the motor currents must not exceed the nominal current of the starter selected,

depending on the type of application). Individual thermal protection and local disconnect is required

for each motor.

Non-standard trip characteristics

Modifications not listed in this catalog

Horsepower greater than those listed in this catalog

Long motor cable lengths

Very long motor cables cause voltage drops due to the resistance of the cable. If the voltage drop is

significant, it could affect the current consumption and the torque available. This criteria must be

taken into account when selecting the motor and the starter.

NOTE: Do not use the ATS48 controller upstream of loads other than motors (for example

transformers and resistance type loads).

See the Altistart 48 catalog #8636CT0201 and data bulletin #8600PD9201 for additional information.

Model 6 Motor Control Centers

Application and General Information Soft Start Units

62 07/2009

Features

Shorting Contactor

A shorting contactor is supplied on all units. This allows the motor current to bypass the soft start's

thyristors once the soft start has ramped up to full voltage/full speed. The use of a shorting contactor

reduces temperature rise within the enclosure during steady state operation and requires less current

carrying duty on the thyristors.

Torque Control System (TCS)

The Altistart 48 uses TCS ramping to accelerate the motor to full voltage. Basing the acceleration ramp

on the motor torque rather than current or voltage, as used in traditional soft starts, provides a linear

speed ramp independent of the motor loading without tachometer feedback. The TCS ramp is also

used for improved control of deceleration and eliminates the need for a special controller to handle

water hammer problems.

Starting and Stopping

Four types of starting are available:

TCS soft start—adjustable from 1 to 60 seconds

TCS with “boost”—adjustable from 50 to 100% of mains voltage

Current limit—adjustable from 150 to 500% of controller rating

Voltage ramping

Three types of stopping are available:

Freewheel or coast to stop

TCS soft stop—adjustable from 1 to 60 seconds

InTele braking—adjustable from 50 to 100%

Protective Features

Solid state motor thermal overload protection—programmable from Class 10 through 30

Soft start thermal protection

Motor phase loss protection

Line supply failure

Overcurrent fault

Locked rotor fault

Line frequency outside limits +/-5% or +/-20%

Selectable protection, including:

— Phase reversal

— Stall and jam

— Thermal overload pre-alarm

— Current threshold alarm

— Underload fault

Transient suppression modules on all contactors

Model 6 Motor Control Centers

Soft Start Units Application and General Information

07/2009

Monitoring and Indication

Door mounted keypad:

Displays setup parameters and fault codes.

Factory preset for most common adjustments.

Security to avoid accidental controller modifications is provided by dip switches on the back of the

keypad, which must be adjusted to provide access to 3 programming levels.

Real time indication via the digital keypad of:

Motor current

Load torque

Motor thermal state

Power factor

Fault status

Two logic outputs:

Motor thermal overload or indication of motor current present

Current threshold alarm

Motor underload alarm

One analog output for 4 to 20 or 0 to 20 mA indication of motor current, torque, thermal state, active

power, or power factor.

Two logic inputs, which are configurable for force to freewheel, thermal overload reset, or indication of

external fault.

Options:

Input isolation contactor

Full voltage bypass

NEMA hp-rated contactors substituted for Telemecanique D or F line contactors

Reversing

120 Vac control power transformer

120 Vac customer VA capacity added to control power transformer

Push-To-Test pilot lights

LED pilot lights

Auxiliary interlocks

Network Communications: Modbus®, DeviceNet™, PROFIBUS, and Ethernet

Model 6 Motor Control Centers

Application and General Information Soft Start Units

64 07/2009

Standard Duty Altistart 48 Soft Starts with Circuit Breaker Disconnects 1

(Pumps, Fans, Lightly Loaded, or Unloaded Starting Applications)

1Motor rated horsepower shown for convenience only. Size per actual motor full load amps. For severe duty applications, choose the next larger horsepower size.

Starter Type and Horsepower Soft Start

Frame Max. Unit Amps TM Trip/Frame

(Amps)

Space (Inches) 2

2Space shown is applicable to NEMA/EEMAC Type 1, 1A, 12, and 3R enclosures. Options may require additional space.

200 V 230 V 460 V IEC Contactors NEMA

Contactors

3——

D17

10 20/150

30 42

— — 10 14 25/150

— 5 — 15 30/150

5——

D22

16 30/150

— — 15 21 40/150

— 7.5 — 24 45/150

7.5 — —

D32

24 45/150

— — 20 27 50/150

— 10 — 28 50/150

10 — — D38 30 60/150

——25 34

——30

D47 40 80/150

—15— 42

15 — —

D62

110/150

30 42

——40 52

—20— 54

20 — —

D75

110/150

——50 65

—25— 68

25 — —

D88

110/150

——60 77

—30— 80

30 — —

C11

88 125/150

— — 75 96 125/150

— 40 — 104 150/150

40 — —

C14

114 175/250

42 60

— — 100 124 200/250

— 50 — 130 200/250

50 — —

C17

143 200/250

— 60 — 154 225/250

— — 125 156 225/250

60 — —

C21

169

250/600

(20 W x 20 D) 72

(20 W x 20 D)

— — 150 180

— 75 — 192

75 — —

C25

211

450/600

— — 200 240

— 100 — 248

100 — —

C32

273

450/600

— — 250 302

— 125 — 312

125 — —

C41

343

600/800 72

(35 W x 20 D) 72

(35 W x 20 D)

— 150 — 360

— — 300 361

150 — — C48 396

— — 350 414

— — 400 C59 477 800/800

— 200 — 480

200 — —

C66

528 800/800 72

(35 W x 20 D) Not Available

— — 500 590 1000/1200

— 250 — 604 1000/1200

Model 6 Motor Control Centers

Soft Start Units Application and General Information

07/2009

Standard Duty Altistart 48 Soft Starts With Fusible Switch Disconnects 1

(Pumps, Fans, Lightly Loaded or Unloaded Starting Applications)

1Motor rated horsepower shown for convenience only. Size per actual motor full load amps. For severe duty applications, choose the next larger horsepower size.

Power fuses are not included.

Starter Type and Horsepower Soft Start

Frame Max. Unit

Amps F/S Amps

(Fuse Class)

Space (Inches) 2

2Space shown is applicable to NEMA/EEMAC Type 1, 1A, 12, and 3R enclosures. Options may require additional space.

200 V 230 V 460 V 575 V IEC

Contactors NEMA

Contactors

3———

D17

30 (J)

30 42

——10— 14

—5—— 15

———15 17

5———

D22

16 30 (J)

— — 15 — 21 30 (J)

— — — 20 22 60 (J)

— 7.5 — — 24 60 (J)

7.5 — — — D32 24 60 (J)

— — 20 25 27

—10—— 28

10 — — — D38 30 60 (J)

———30 32

——25— 34

——30—

D47 40 100 (J)

———40 41

—15—— 42

15 — — — D62 46 100 (J)

30 42

— — 40 50 52

—20—— 54

20 — — —

D75

200 (J)

———60 62

——50— 65

—25—— 68

25 — — — D88 74 200 (J)

— — 60 75 77

—30—— 80

30 — — —

C11

200 (J)

——75— 96

— — — 100 99

—40—— 104

40 — — —

C14

114 200 (J)

42 60

— — 100 — 124 400 (J)

— — — 125 125 400 (J)

— 50 — — 130 400 (J)

50 — — —

C17

143

400 (J)

———150 144

—60—— 154

— — 125 — 156

60 — — — C21 169 400 (J)

(30 W x 20 D) 72

(30 W x 20 D)

— — 150 — 180

—75—200 192

75 — — —

C25

211 400 (J)

— — 200 — 240 600 (J)

— — — 250 242 600 (J)

— 100 — — 248 600 (J)

100 — — —

C32

273

600 (J)

———300 289

— — 250 — 302

—125— — 312

———350

C41

343 600 (J)

(30 W x 20 D) 72

(30 W x 20 D)

125 — — — 343 600 (J)

— 150 — — 360 800 (L)

— — 300 — 361 800 (L)

———400

C48 382 800 (L)

150 — — — 396

— — 350 — 414

———500

C59 472 1000 (L)

— — 400 — 477

—200— — 480

200 — — —

C66

528 1000 (L) 72

(35 W x 20 D) Not Available

— — — 600 580 1000 (L)

— — 500 — 590 1200 (L)

— 250 — — 604 1200 (L)

Model 6 Motor Control Centers

Application and General Information NEMA Type 3R Enclosures for AC Drives and Soft Starts

66 07/2009

NEMA/EEMAC Type 3R Enclosure Applications for AC Drives and Soft Starts

NEMA/EEMAC Type 3R MCCs manufactured by Schneider Electric are non-walk-in enclosures with a design based on the

standard Type 1 MCC. Additional housing and gasketing provide protection from rain, sleet, and ice. The Type 3R MCC for

AC drives and soft starts features louvered and filtered openings on the front doors, along with humidity controls inside the

enclosure (see Figure 1). The MCC enclosure is further modified to include fan-forced ventilation while continuing to meet

NEMA/EEMAC Type 3R enclosure requirements and the UL 845 MCC standard.

Environmental Control

The ventilated NEMA/EEMAC Type 3R MCC manages the internal MCC environment to maintain the required temperature and

humidity levels for the drive and soft start controls in outside environments from

14 to 104 °F (-10 to 40 °C). The following features are included:

Dual Door Fans—Dual door fans force fresh air into the enclosure and move air out of the enclosure. The centrifugal impeller

fans use highly reliable ball bearing rotors. A factory-preset thermostat controls the fans, based on the MCCs internal

temperature. Door interlock switches turn the fans off when the outer NEMA/EEMAC Type 3R door is opened.

Positive Pressure Ventilation—The intake fans, mounted at the lower vents, blow air into the cabinet. This air increases the

cabinet's internal air pressure relative to the air pressure outside the cabinet. The “positive” air pressure created inside the

cabinet helps force out dirt and contaminants. This positive pressure ventilation method is common practice for industrial

atmospheres: it provides a cleaner environment for drive and soft start electronics than one that would be created by exhaust

fans mounted at the upper vents.

Space Heaters—Space heaters add heat to prevent condensation during cooler periods, overnight, and in winter weather.

NOTE: Space heaters do not permit use of the MCC in temperatures below 14 °F (-10 °C).

Center Ventilated NEMA/EEMAC Type 3R Enclosure

DDD

Front View of

NEMA/EEMAC Type 3R MCC

(dashed lines represent units)

Side View of

NEMA/EEMAC

Type 3R MCC

Environmental

Controls

Filtered

Ventilation

Space Heaters

Fans

Transformer

Power Supply for

Environmental

Controls

Model 6 Motor Control Centers

NEMA Type 3R Enclosures for AC Drives and Soft Starts Application and General Information

07/2009

Humidity Controls —It is crucial to maintain a level of dryness in or around the electronic controls for drives and soft starts.

Condensation must be avoided. The space heaters will supply the MCC with heat when necessary to reduce condensate

formation. A factory-preset thermostat and humidistat monitor humidity levels and turn on the space heaters to dry the internal

MCC ambient air.

Self-Contained Power Supply—The fused control transformer(s) supplied in each MCC line-up provide power for space

heaters and fans. There is no need for external power once the main 3-phase power is connected. The power supply is pre-

wired at the factory to fans, space heaters, and environmental controls through protected wiring provisions. Each transformer

is able to supply power to three sections and should be mounted at the bottom of the MCC section.

Filtered Louvers—Each NEMA/EEMAC Type 3R MCC door contains top and bottom louvers for ventilation. Behind each

louver is a coarse rubber filter that helps keep debris from entering the MCC.

NOTE: All drives and soft starts include internal thermal protection switches to shut down the drive or soft start unit before

damage occurs.

Ratings

Altivar 71: 1–40 hp, 480 V, or 1–15 hp, 208/230 V

NOTE: A maximum of four ATV71 drives are allowed in a single section. Mount drive units starting at the top of the section.

Altistart 48 Soft Start: 10–500 hp, 480 V

15–600 hp, 600 V

5–250 hp, 240 V

3–200 hp, 208 V

NOTE: In hotter climates, Schneider Electric suggests installing a shed for shading the MCC as a best practice, since high

temperatures are not always consistent.

Altivar 71—Use constant torque ratings for variable torque applications

14 to 104 °F (-10 to 40 °C)

Up to 2000 A horizontal bus

Outdoor, Rainproof, Sleet Resistant Enclosure (NEMA/EEMAC Type 3R)

UL 845 Listed

0–480 Vac, 3Ph, 3W or 4W

Non-walk-in

Model 6 Motor Control Centers

Application and General Information Unit Options

68 07/2009

Unit Options

Options And Modifications

Various options can be provided on Model 6 units to meet specific customer requirements. Many

options require additional mounting space as indicated in the following tables. It is not necessary to

add a unit extender modification to accommodate the additional space listed below. The space

requirements listed are for typical unit arrangements. Unusual combinations or variations may require

additional space.

The total space added to any one unit should total 3, 6, 9, 12, or 24 in. to avoid multiple unit extenders.

Unit extenders may be specified to allow additional unit space for customer requirements (see

page 81). Some units (primarily full section 72 in. units) contain room for limited options without the

need for the additional space listed. Contact MCC TAG for additional information or layout assistance.

NOTE: Unit options listed are based on factory-selected components. Other devices are available.

Contact MCC TAG for further information.

Control And Timing Relays

Description Application Space

5-pole Control Relay D-Line (wired or unwired), (3 NO + 2 NC) Starter or MT unit

4-pole Control Relay Type X (wired or unwired), (2 NO + 2 NC) Starter or MT unit

9-pole Control Relay D-Line (wired or unwired), (5 NO + 4 NC) Starter or MT unit

8-pole Control Relay Type X (wired or unwired), (4 NO + 4 NC) Starter or MT unit

5-pole Latching Relay D-Line (wired or unwired), (3 NO + 2 NC) 4-pole relay with mechanical latch

4-pole Latching Relay Type X (wired or unwired), (2 NO + 2 NC) 4-pole relay with mechanical latch

Pneumatic Timer D-Line (wired or unwired), (3 NO + 2 NC) Instantaneous

and (1 NO + 1 NC) Timed Contacts On Delay

Pneumatic Timer D-Line (wired or unwired), (3 NO + 2 NC) Instantaneous

and (1 NO + 1 NC) Timed Contacts Off Delay

Pneumatic Timer Type X (wired or unwired), (2 NO + 2 NC) Instantaneous

and (1 NO + 1 NC) Timed Contacts On Delay

Pneumatic Timer Type X wired or (unwired), (2 NO + 2 NC) Instantaneous

and (1 NO + 1 NC) Timed Contacts Off Delay

Motor Operated Timing Relay, (Single Timing Step)

(1) Timed Circuit

6(2) Timed Circuit

Each Instantaneous Contact

Multifunction Timing Relay Type RE7 (wired or unwired) 1, 2 2PDT (form C)

1Fusible FVNR units Size 1 and 2 require 3 in. of space, max. (1). Not available in Compac starters with CPT.

2Instantaneous contacts not available.

Multifunction 3

2-pole Control Relay SK-Line (wired or unwired), (1 NO + 1 NC) Starter or MT unit

3-pole Control Relay Type K (wired or unwired) , 3PDT (form C) General Purpose

4-pole Control Relay Type R (wired or unwired) 4PDT (form C) General Purpose

Phase Failure Relay Type MP (wired or unwired) , SPDT (form C) Phase Failure

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Special Function Relays

Description Application Space (Inches)

Duplex Alternator Used with (2) Combination Starters

0 1

1Compelling, accelerating, and decelerating relays used with Size 3 and 4, 2-speed 2-winding starters require 6 in. of

mounting space.

Compelling Relay 2-Speed Starters

Accelerating Relay 2-Speed Starters

Decelerating Relay 2-Speed Starters

Over/Undervoltage Relay Starter Units (Single Phase – 120 V) 3

Motor Winding Heaters

Description Application Space

(Inches)

Motor Winding Heater 3–100 hp @ 480 V 0

101–300 hp @ 480 V

Unit Nameplates

Description Application Space (Inches)

Unit nameplate engraved

(1.5 in. x 6.5 in.)

White letters on gray (standard)

Black letters on white

White letters on black

White letters on red

Unit nameplate other than standard size All 0

Stainless steel mounting hardware —

Master nameplate engraved

(8 in. x 10 in.)

White letters on gray

Black letters on white

White letters on black

White letters on red

Standard Unit Nameplate

Model 6 Motor Control Centers

Application and General Information Unit Options

70 07/2009

Control Circuit Variations

Description Application Description Space

(Inches)

Unfused Separate 120V Control Circuit with

Control Power Disconnect

Standard on all starters unless control power

transformer is chosen. (All Size 6 starters have

control power transformer as standard)

SPDT

0DPDT

Fused Separate 120V Control Circuit with

Control Power Disconnect Includes one fuse and control circuit interlock. SPDT

DPDT

Fused Line Voltage Control Circuit

(two primary fuses)

Control power taken between phases

Control power taken from phase and neutral

Operating Mechanism Interlock 1

(Not suitable for use as loss source indiation)

1Not suitable for use as loss source indication.

SPDT

DPDT

Fused Control Power Transformer

(two primary fuses and one secondary fuse as

standard)

VA rating shown in parentheses ( ) is the

excess capacity for other control devices after

subtracting the contactor requirements.

Size 1 FVNR

50VA (23)

100VA (73)

150VA (123)

300VA (273) 6

Size 1 FVR and 2-Speed;

All Size 2

100VA (62)

150VA (112)

300VA (262)2

26 in. required on Size 1 2-Speed and all Size 2 starters.

All Size 3, except

2-Speed 1-Winding

150VA (104)

300VA (253)

500VA (453) 9

All Size 4 and Size 3

2-Speed 1-Winding

300VA (211) 0

500VA (411)

750VA (661) 9

All Size 5 and All RVAT

(Use Line Voltage Coil

with Interposing Relay)

50VA (25)

100VA (75)

150VA (125)

300VA (275)3

36 in. required on Size 1-3 RVAT and RVPW.

500VA (475)4

49 in. required on Size 1-3 RVAT and RVPW.

All Size 6

150VA (15) STD

300VA (165)

450VA (315)

Transient Suppression Module Size 1-5 Starters

(Maximum coil voltage = 120 V) 0

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Pilot Devices

Model 6 Motor Control Centers use Class 9001 Type XB5 22 mm pilot devices as standard. Starters

are provided with a removable hinged station plate that has five knockouts for XB5 (maximum of three

Type K 30 mm devices). Compac 6 starters are provided with a control station plate that has knockouts

for four Class 9001 Type XB5 22 mm pilot devices. Type K devices cannot be substituted on

Compac 6 starters.

NOTE: When more pilot devices are specified than will fit in the station plate, the additional devices will

be mounted directly in the unit door. Not applicable to Compac 6.

Control Station

Plate

Description Application Space

(Inches)

Start-Stop push button Any starter

Forward-Reverse-Stop push button FVR

High-Low-Stop push button 2-speed

Fast-Off-Slow push button 2-speed

High-Low push button 2-speed

Fast-Slow push button 2-speed

On-Off push button Any starter

Single Function push button Any starter

Illuminated push button Any starter

Maintain Contact push button Any starter

Hand-Off-Auto selector switch Any starter

Hand-Off-Auto selector switch with manual speed potentiometer AC Drives

Start-Stop selector switch Any starter

On-Auto selector switch Any starter

On-Off selector switch Any starter

High-Off-Low selector switch 2-speed

Hand-Auto selector switch Any starter

Test-Auto selector switch Any starter

Forward-Off-Reverse selector switch FVR

Forward-Off-Reverse selector switch with manual speed potentiometer AC Drives

High-Low selector switch 2-speed

Slow-Off-Fast selector switch 2-speed

Slow-Fast selector switch 2-speed

Forward-Reverse selector switch FVR

High-Low-Off selector switch 2-Speed

4-position selector switch Any starter—Type K operators

Switchboard type rotary cam selector switch Any circuit

Substitute Type K pilot devices (XB5 STD.) (N/A on Compac 6) Any starter (max. 3 Type K devices)

Substitute Type XB4 pilot devices (XB5 STD.) Any starter

Addition of dust boots to above pilot devices Any pilot device

Omit control station plate (solid steel unit door) Units without pilot devices

Units with pilot devices (door mounted)

Model 6 Motor Control Centers

Application and General Information Unit Options

72 07/2009

Pilot Lights

Model 6 Motor Control Centers use Class 9001 Type XB5 22 mm pilot devices as standard. Starters

are provided with a removable hinged station plate that has five knockouts for XB5 (maximum of three

Type K 30 mm devices). Compac 6 starters are provided with a control station plate that has knockouts

for four class 9001 Type XB5 22 mm pilot devices. Type K and push-to-test devices cannot be

substituted on Compac 6 starters.

NOTE: When more pilot devices are specified than will fit in the station plate, the additional devices will

be mounted directly in the unit door. Not applicable to Compac 6.

Description Application Space

(Inches)

Pilot lights

“On” (Red, Green) Any starter, AC Drive 1

1LED-type direct supply.

“Off” (Red, Green) Any starter

Special configuration2

2Any starter application requires a diagram with order entry.

Red

Any starter

Green

Yellow

Blue

White

Push-To-Test pilot lights

(not available on Compac 6)

“On” (Red, Green) Any starter

“Off” (Red, Green) Any starter

Special configuration 2

Red

Any starter

Green

Yellow

Blue

White

“RUN” Red

AC Drives

Green

“STOPPED” Red

Green

“FAULT” Yellow

“HAND” and “AUTO”

Substitute Type K pilot light (not available on Compac 6) Any starter

Substitute Type XB4 pilot light

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Overload Relays

Model 6 motor control center units with Type S starters are available in NEMA/EEMAC Sizes 1

through 6. Type S starters are provided with melting alloy overload relay blocks as standard. Their

trip-free construction allows the overload relay to trip even if the reset lever is blocked or held in the

reset position. Features such as the trip-to-test and the visible trip indicator minimizes troubleshooting

time. With these features and state-of-the-art design, the Model 6 starter unit has earned a solid

reputation that no other NEMA/EEMAC starter can equal.

Schneider Electric has added the solid state motor overload protection to its existing family of overload

relay protection equipment, including melting alloy and bi-metallic devices. Technological migration

allows Schneider Electric customers the ability to make the same space “smarter,” while preserving

backward compatibility.

Auxiliary Electrical

Interlocks

Auxiliary Electrical Interlocks 1

1Elapsed time meters, transient suppression module, and Off pilot light use one auxiliary interlock each. Size 1 starters with three

auxiliary interlocks require a minimum 100 VA control power transformer.

Max. Aux. Interlocks Per Contactor Description

Type Size Qty.

FVNR 1-2 4

When the starter has more than one contactor (FVR, RVAT,

2-speed), indicate which contactor receives the interlock.

3-6 4

FVR 2

2Maximum of 2 interlocks per contactor for Compac 6 starters.

1-2 4

3-5 2

2-speed

1-winding

CHP: Low 1-4 2

CHP: High 1-2 4

3-4 2

CVT: Low 1-2 4

3-4 2

CVT: High 1-4 2

2-speed

2-winding

1-2 4

RVAT 3-6 5

Description Application Space

(Inches)

Melting alloy overload relay Any starter 0 1

1Size 3 2-speed 1-winding requires 9 in. space adder.

Ambient compensated bi-metallic overload relay Any starter

TeSys® T Motor Managment Controller Any starter See

following

tables.

Motor Logic Solid State Overload Relay (SSOLR) Any starter

Motor Logic Plus/Motor Logic Plus II SSOLR Any starter

Isolated alarm contact – N.O. Melting alloy only 0

Overload alarm light (Amber) 2

2Not available on Size 3 and 4 starters with bimetal overload.

Melting alloy, bimetal 0

Overload alarm light – LED (Amber) Melting alloy, bimetal

Omit overload relay Converts combination starter to combination contactor 0

Omit external overload reset button — 0

Additional overload relay (See NEC 430-53 for proper application)

Size 1 starters 6

Size 2 starters 6

Size 3 starters 9

Size 4 starters 12

Factory-installed thermal units 3

(Will be sized per NEC 430-150, unless full load current provided

with order)

3Order must include thermal unit selection or motor full load current ratings. 2-speed and part-winding starters require six thermal

units.

All standard melting alloy and bimetal thermal units

(set of 3) 0

Type FB Quick Trip (set of 3)

Type SB Slow Trip (set of 3)

Model 6 Motor Control Centers

Application and General Information Unit Options

74 07/2009

TeSys® T Motor Management Controller

The TeSys T Motor Managment controller connects directly to the communication network offering data

monitoring and control. Communication users gain access to motor data variables and system process

control through “onboard” I/O. The TeSys T controller includes thermal overload, over/under current, long

start/jam, ground fault, and phase failure/unbalance protection. In addition, when combined with a PLC,

the Tesys T controller provides an independent data monitoring and control system.

The TeSys T controller is available in five different native, open communication protocols: CANopen,

DeviceNet™, Ethernet TCP/IP, Modbus®, and PROFIBUS.

Voltage and load monitoring is available by selecting the optional Expansion Module. The additional

motor monitoring includes over/under voltage, phase reversal, over/under power factor, and load

shedding. In addition, the optional HMI may be supplied on each unit to provide local monitoring,

configuration, and control functions.

The Tesys T Motor Management Controller includes:

•Native open communication protocol

•Six discrete inputs and three relay outputs

•RJ-45 port for connection to expansion module, HMI display, or PC

•24 Vdc or 120 Vac, 50/60 Hz control power

•Status indicating LEDs

— HMI communication—Communication between controller and HMI device

— Power—Controller state

— Alarm—Warning or fault condition

— Fallback—Communication loss on active control source

— PLC communication—Network status

•Fault relay—1 N.O. and 1 N.C.

•Ground Fault CT input

•Thermistor/PTC input

NOTE: The TeSys T Motor Management Controller is not available with vacuum starters, Altivar®

drives, or Compac 6 starters.

TeSys T and Motor Logic Plus™ Family Solid-State Overload Relay (SSOLR) Space Addition

Requirements–Circuit Breaker Type Disconnects

Size FVNR FVR 2S2W 2S1W RVAT PW

1 0 in. 3 in. 3 in. 3 in. — 0 in.

2 0 in. 3 in. 3 in. 3 in. — 0 in.

3 0 in. 0 in. 0 in. 0 in. 3 in. 0 in.

4 3 in. 15 in. 27 in. 27 in. 6 in. —

5 0 in. 25 in. 0 in. 0 in. 0 in. —

6 0 in. — — — 0 in. —

TeSys T and Motor Logic Plus Family SSOLR Space Addition Requirements–Fusible Switch

Type Disconnects

Size FVNR FVR 2S2W 2S1W RVAT PW

1 0 in. 3 in. 3 in. 3 in. — 0 in.

2 0 in. 3 in. 3 in. 3 in. — 0 in.

3 (100 A) 3 in. 0 in. 0 in. 0 in. 3 in. 0 in.

3 (200 A)0 in.—————

4 9 in. 15 in. 27 in. 0 in. 0 in. —

5 0 in. 25 in. 0 in. 0 in. 0 in. —

60 in.—————

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Motor Logic® Solid-State Overload Relays

The Motor Logic SSOLR family of products offers a degree of flexibility for selecting the amount of motor

protection or control you require. Coupled with the Square D® brand Type S contactor, the Motor Logic

SSOLRs form the benchmark for NEMA/EEMAC-style motor starters. They are available fully integrated

in the Model 6 MCC, forming a complete power and control system.

TeSys T Options

Option Description

Expansion Module Voltage and Load monitoring. Four additional logic inputs.

Powered through the controller. RJ-45 port.

RJ-45 Port Programming port. Mounted in 22mm control station plate.

Door mounted if more than five 22mm pilot devices.

HMI Door mounted operator interface. LCD display—4 lines, 20

characters. RJ-45 port.

Programmer Hand held HMI. Enables configuring and commissioning of

the controller.

Ground Fault CT Measures ground faults at levels significantly lower than the

ground fault detection based on the internal summation of the

3-phase currents.

Reset Push Button Mounted in 22 mm control station plate. Local Operator reset.

PowerSuite™ Software Enables configuring and commissioning of the controller.

Default logic can be modified or new logic can be created

with this software.

Warning Pilot Light CSP-mounted; provides visibility of TeSys T Warning.

Fault Pilot Light CSP-mounted; provides visibility of TeSys T Fault.

Motor Logic Solid State

Overload Relay “Base Unit”

Unit with Motor Logic Solid

State Overload Relay

Application Space

(Inches) Application Space

(Inches)

Motor Logic Base Unit Motor Logic Feature Base Unit

Size 1–2 FVNR and FVR

Size 1–2 2SPD 1,2

1Specify Full Load Current for both speeds.

2Not all configurations are available.

Size 1–2 2SPD ,

Size 3–4 FVNR, FVR and RVAT Size 3–4 FVNR, FVR and RVAT

Size 3–4 2SPD and PW ,Size 3–4 2SPD and PW ,

Size 5 2SPD and PW ,Size 5 2SPD and PW ,

Size 5–6 FVNR, FVR and RVAT Size 5–6 FVNR, FVR and RVAT

Motor Logic Options

Description Application Space

(Inches)

Isolated Auxiliary Contact (required for fault pilot light) All Starters with Motor Logic

Auto Reset and Isolated Auxiliary contact All Starters with Motor Logic

Remote Reset and Isolated Auxiliary Contact All Starters with Motor Logic

Overload Light Requires Isolated Contact

MCC Looping Terminal Kit Size 1 Starters

Model 6 Motor Control Centers

Application and General Information Unit Options

76 07/2009

Motor Logic Plus Solid State Overload Relays

The Motor Logic Plus family of solid state overload relays are programmable electronic overloads with

motor protective features and communications capabilities.

The Motor Logic Plus provides voltage and current monitoring with an integral LED display. The

communication port allows for connectivity to an upstream network.

The Motor Logic Plus II provides protective and control functions. The Motor Logic Plus II integrates

I/O with four digital inputs and two relay outputs for network control functions.

Motor Logic Plus Family SSOLR Application Notes:

•Not available with vacuum starters, Altivar drives, or with Compac 6 starters.

•120 Vac control power available with individual control power transformers or separate source.

•The Motor Logic Plus SSOLR is provided with a communications module as standard.

Part #9999MB22.

Motor Logic Plus Family SSOLR Communications Adaptors

Overload Relay Type Description Space (Inches)

Motor Logic Plus

Modbus® 2-wire communications adapter, part #9999MB22

Modbus 4-wire communications adapter, part #9999MB11

DeviceNet™ communications adapter, part #9999DN

PROFIBUS communications adapter, part #CIO-MLP-PR-IO

Motor Logic Plus II DeviceNet communications adapter, part #9999DN2

PROFIBUS communications adapter, part #CIO-MLPII-PR

Model 6 Motor Control Centers

Unit Options: AC Drives Application and General Information

07/2009

AC Drive Power Contactor Options 1

1Only one allowed.

Power Circuit Diagram

Description

Integrated Bypass 2

Available with circuit

breaker disconnect only.

Uses TeSys contactors.

2Bypass is not isolated from the drive compartment. Both drive and bypass must be removed at the same time.

Barriered Bypass

(Uses NEMA contactors)

Barriered Application Rated

Compac 6 Bypass

(14 A maximum)

208 V 240 V 480 V Space (Inches)

1–5 hp 1–5 hp 1–10 hp 12 18 6

7.5–10 hp 7.5–10 hp 15–20 hp 12 18

N/A

— — 25 hp VT 12 18

15 hp 25 hp CT 9 18

15–20 hp 20 hp 30–40 hp 9 27

25 hp VT 50 hp VT 9 27

25 hp 25 hp CT

30 hp All 50 hp CT 5 added to width 27 in adjacent section

30–40 hp VT 40–50 hp VT 60–100 hp VT 5 added to width 33 in adjacent section for CB

39 in adjacent section for FS

30–40 hp CT 40 hp CT 60–75 hp CT

— — 100 hp CT 20 added to width 33 in adjacent section for CB

39 in adjacent section for FS

— — 125–150 hp All 20 added to width 25 added to width

— — 200 hp All 20 added to width 25 added to width

• Basic Drive features with

isolation and bypass contactors

for emergency full speed

operation in same compartment.

• TeSys D- or F-Line contactors

are used.

• Only available as circuit breaker

disconnect common to drive and

bypass.

• Drive and bypass are UL 845

Listed for 100,000 A SCCR and

coordinated for Type 1

protection.

• Includes AFC-Off-Bypass

selector switch, Red Push-To-

Test “AFC” Pilot Light and

Yellow Push-To-Test “Bypass”

Pilot Light on bypass control

island.

• Basic drive features with isolation and bypass contactors for

emergency full speed operation.

• Barriered application-rated Compac 6 bypass uses TeSys contactors.

NEMA contactors are used on barriered NEMA bypass.

• Separate disconnect for drive and bypass can be operated

independently.

• Drive and bypass starter are enclosed in separate barriered

compartments.

• Drive and bypass are UL 845 Listed for 100,000 A SCCR and

coordinated for Type 1 protection.

• Includes AFC-Off-Bypass selector switch, Red Push-To-Test “AFC” Pilot

Light and Yellow Push-To-Test “Bypas” Pilot Light on bypass control

island. (Non-Push-To-Test used on Compac 6)

Drive

CB CBor orDISCDISC

Separate

Unit

Model 6 Motor Control Centers

Application and General Information Unit Options: AC Drives

78 07/2009

AC Drive Power Contactor Options (Continued)

Power Circuit Diagram

Description Load Contactor Line Contactor

208 V 240 V 480 V Space (Inches)

1–3 hp All 1–3 hp All 1–10 hp All 12 12

5 hp All 5 hp All 15 hp All 12 12

7.5–10 hp All 7.5–10 hp All 20 hp All 12 12

— — 25 hp VT

15–20 hp VT 15–25 hp VT 30–50 hp VT 99

15–20 hp CT 15–20 hp CT 25–40 hp CT

25–50 hp VT 30–50 hp VT 60–100 hp VT 5 added to width 5 added to width

25–40 hp CT 25–40 hp CT 50–75 hp CT

• Basic Drive features with load

contactor for motor isolation.

Contactor is open when drive is

not running.

• TeSys D- or F-Line contactors are

used.

• Drive and load are UL 845 Listed

for 100,000 A SCCR.

• Basic Drive features with line

contactor for isolating drive from

input line.

• TeSys D- or F-Line contactors are

used.

• Drive and line contactor are UL

845 Listed for 100,000 A SCCR.

AC Drive Miscellaneous Options

Option Space (Inches)

Line Reactors (3% or 5%)

Each line reactor is mounted in the MCC cabinet as a separate unit above the

drive unit and is factory wired to the line side of the drive

1–5 hp, 208/240 V or 1–10 hp, 480 V (3 or 5% Impedance) 1

1Space is applicable to NEMA/EEMAC Type 1, 1A, or 3R. Contact MCC TAG for line reactors in NEMA/EEMAC Type 12 MCCs for

these sizes.

7.5–20 hp, 208/240 V or 15–40 hp, 480 V (3 or 5% Impedance) 9

25 hp VT, 240 V or 50 hp VT, 480 V (3 or 5% Impedance) 12

25–40 hp CT, 208/240 V or 25–40 hp VT, 208 V or 30–50 hp VT, 240 V or

50–100 hp CT, 480 V or 60–125 hp VT, 480 V 0

125–200 hp CT or 150–250 hp VT, 480 V

250–450 hp CT or 300–500 hp VT, 480 V

Motor Protecting Filters or 5% Output Reactors

Each load filter/reactor is mounted in the MCC cabinet as a separate unit adjacent

to the drive unit and is factory wired to the load side of the drive. Not available on

NEMA/EEMAC Type 12 MCCs.

1–10 hp, 480 V 6

15–40 hp, 480 V 9

50–75 hp, 480 V 12

100–125 hp, 480 V 21 (bottom mounted only in adjacent section)

150–200 hp, 480 V

250–300 hp, 480 V 24 (bottom mounted only in adjacent section)

350–400 hp, 480 V

CB or Disc

Power

Fuse

Drive

CB or Disc

Power

Fuse

Drive

Model 6 Motor Control Centers

Unit Options: AC Drives Application and General Information

07/2009

AC Drive Miscellaneous Options (continued)

Option Space (Inches)

100 VA customer capacity on drive's 120 V control transformer

1–3 hp, 208/240 V or 1–3 hp, 480 V with basic power option 3

5–100 hp, 480 V or 5–50 hp, 208/240 V 0

300 VA customer capacity on drive's 120 V control transformer

125-500 hp VT or 100-450 hp CT, 480 V with basic power option 0

Extended I/O Cards 1

Each option board is pre-installed onto drive inside unit with all customer

terminations left unwired (Type 1A wiring).

1A maximum of two extended I/O cards can be installed. If a comm. card is present, only one extended I/O card can be installed.

Basic I/O card (VW3A3201)

Extended I/O card (VW3A3202)

Controller inside card (VW3A3501)—mounting only, no programming. Contact

MCC TAG for applications requiring programming.

115 Vac Logic Input adapter (VW3A3101). Adapts seven logic inputs for use with

user supplied 115 Vac signals

3 on Basic Power Option for 1–15 hp 480 V

or 1–10 hp, 208/240 V

0 for all others

Communications Cards (choose only one)

Each option board is pre-installed and does not include network wiring. Network

interwiring within the MCC must be purchased separately.

Modbus®/Uni-Telway (VW3A3303)

Modbus Plus (VW3A3302)

PROFIBUS DP (VW3A3307)

DeviceNet™ (VW3A3309)

Ethernet TCP/IP (VW3A3310D)

Ethernet IP (VW3A3316)

FIPIO® (VW3A3311)

INTERBUS® (VW3A3304)

LonWorks® (VW3A3312)

Metasys N2 (VW3A3313)

BACnet® (VW3A3315)

Apogee® FLNPI (VW3A3314)

Dynamic Braking Resistors

The use of braking resistors dissipates excess energy generated by the motor

whenever the motor functions in the generator mode as on high inertia loads or

machines with a driving load. Resistors are mounted in the MCC cabinet as a

separate unit above the drive unit and is factory wired to the DC bus of the drive.

Not available in NEMA/EEMAC Type 12 MCCs.

1–2 hp, 208/240 V or 1–10 hp, 480 V 6

3–10 hp, 208/240 V or 15–20 hp, 480 V 9

15–20 hp, 208/240 V or 25–40 hp, 480 V 9

Drive Unit Extenders

1–25 hp VT or 1–20 hp CT, 480 V or 1–10 hp, 208/240 V

Provides space added below drive unit for added devices with single door to cover

the drive and added space. Available for Basic and Barriered Bypass Power

Options only.

3, 6, or 12

30–50 hp VT or 25–40 hp CT, 480 V or 15–25 hp VT or 15–20 hp CT, 208/240 V

Provides space added below drive unit for added devices with single door to cover

the drive and added space. Available for Basic and Barriered Bypass Power

Options only.

3, 6, or 9

Control and Timing Relays:

Auto Start Relay without Delay

Provides interposing relay for starting drive in auto mode via customer supplied

120 Vac. Requires Hand-Off-Auto Selector Switch For Basic and Barriered Bypass units,

add 3 for 1–25 hp VT @ 480 V,

or 1–20 hp CT @ 480 V,

or 1–10 hp @ 208/240 V.

Add 0 for all others.

Auto Start Relay with Delay

Provides interposing relay for starting drive in auto mode via customer supplied

120 Vac or dry contact. Adjustable time delay for delaying drive start from 1.5-30

seconds is included. Requires Hand-Off-Auto Selector Switch

Model 6 Motor Control Centers

Application and General Information Unit Options: Altistart Solid-State Starters

80 07/2009

Soft Start Unit Power Options

Description Soft Start Frame

Space (Inches)

IEC

Contactors NEMA

Contactors

Input Isolation Contactor

(Replaces the standard shunt trip

disconnect. Standard feature if reversing

or full voltage bypass is chosen.)

As an option, MCC soft start units can

include an input contactor instead of a

shunt trip disconnect to isolate the soft

start in case of a fault condition. The input

contactor also opens when the motor is

not in use. This provides protection from

voltage transients when the electronics are

most susceptible to damage. Control

power is maintained after the input

contactor is opened so fault diagnostics

are available.

D17 – D47 15 15

D62-C11 18 15

C14-C17 18 12 (5 added to width)

C21-C32 10 added to width for

CB version only 20 added to width

C41-C66 (IEC)

C41-C59 (NEMA) 0 20 added to width

Integrated Full Voltage Bypass Starter

(requires input isolation contactor)

As an option, MCC soft start units can

include a full voltage bypass to allow

emergency full voltage starting of the

motor in case the soft start is unable to be

used. This feature includes necessary

control and power circuitry to start the

motor with full voltage using a bypass

enable/disable selector switch. A Class 20

overload relay is provided to protect the

motor in the bypass mode. The bypass

contactor also acts as a shorting contactor

in the soft start mode. Not available with

Reversing Capability.

D17 - D47 15 27

D62-C11 18 27

C14-C17 18 12 (5 added to width)

C21-C32 10 added to width for

CB version only 20 added to width

C41-C66 (IEC)

C41-C59 (NEMA) 0 20 added to width

Reversing Capability

(includes input isolation contactor)

Not available with NEMA contactors or full

voltage bypass.

D17 - D47 15

Consult Factory

D62-C11 18

C14-C17 18

C21-C32 10 added to width for

CB version only

C41-C66 20 added to width

Soft Start Unit Control Options

Description Space (Inches)

1.5-30 sec. start delay

Emergency Off push button, maintained contact. Requires Shunt Trip option on disconnect.

Current meter–analog, 2.5 in. panel type, 0-200% of nominal motor current

Elapsed time meter

Auxiliary Electrical Interlocks

Run contacts, 1 NO, 5A @ 120 Vac (8501 Type R relay)

Bypass run contacts, 1 NO, 5A @ 120 Vac (8501 Type R relay). Requires integrated full voltage bypass.

Auto mode contacts, 1 NO, 5A @ 120 Vac (8501 Type R relay). Requires Hand-Off-Auto switch.

Fault contacts, 1 NO, 5A @ 120 Vac (8501 Type R relay)

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Unit Extenders

Unit extenders are used to provide additional component mounting space within a unit. Only one unit

extension is recommended per unit. Total unit size cannot be increased beyond 72 in. Space

requirements shown for the modifications in this catalog already include the unit extension.

Description Application Space (Inches)

3 in. unit extender

All plug-in units

6 in. unit extender 6

9 in. unit extender 9

12 in. unit extender 12

15 in. unit extender 15

18 in. unit extender 18

21 in. unit extender 21

24 in. unit extender 24

30 in. unit extender 30

36 in. unit extender 36

Fusible Switch Options

Description Application Space

(Inches)

Class R fuse clips 1

1Not available on Compac 6 starters.

30–600 A fusible switches; Size 1-6 fusible starters

Class J fuse spacing

(standard with Compac™ 6 fusible starters and branches)

30–400 A fusible switches

600 A fusible switches

Next larger size Class J fuse clips

Size 1, 5, 6 fusible starters

Size 2, 3 fusible starters

Size 4 starters

Next smaller size fuse clips Size 1–6 fusible starters

Key interlock (single cylinder) Per lock/ per switch

Factory Installed Fuses

Type Class

Max. Fuse Size FRN/RK5 KTN/RK1 LPN/RK5 FRS/RK5 KTS/RK1 LPJ/J LPS/RK5 KRP/L

100

200

400

600

250 V 600 V —

1200

1600

2000 — — 600 V

Model 6 Motor Control Centers

Application and General Information Unit Options

82 07/2009

Circuit Breaker Options

Description Application Space

(Inches)

Substitute L-interrupting circuit breaker for J-interrupting

circuit breaker. (Part-winding starters require two circuit

breakers.)

H-frame units

J-frame units

Substitute thermal-magnetic circuit breaker for motor circuit

protector. All starters (Include actual hp information)

122 °F (50 °C) rise breaker All (non-UL)

Key interlock (Schneider Electric brand) 1

1Not available on Compac 6.

Per lock on any device

Operating mechanism interlock 2

2Not available in 600–2500 A mains/branches that do not have handle operators.

SPDT

DPDT1

Shunt trip (120 Vac) Any unit with a circuit breaker

Shunt trip (24 Vdc) Any unit with a circuit breaker

Undervoltage trip Any unit with a circuit breaker

Phase failure relay, Type MP SPDT (Form C) for

main circuit breaker or switch

15–600 A main circuit breaker

200–400 A main switch 9

800 A main circuit breaker

1200 A (80%) main circuit breaker 15

600–800 A main switch

1000–1200 A bottom incoming main switch 12

All other mains

Auxiliary switch 3

3Low level switches for switching very low loads are available on PowerPact H/J/M/P or R-frame breakers.

Any unit with a circuit breaker

1 Form C contact

2 Form C contacts (PowerPact only)

3 Form C contacts (PowerPact M-, P-, and R-frame only)

Alarm switch 3Any unit with a circuit breaker (1A or 1B switch)

Overcurrent trip switch (SDE) 3PowerPact circuit breaker (1 Form C contact)

Electrical operator (two-step, stored energy). Includes

spring-charging motor and terminals for remote contact

control of open/close operation Mains/branches with PowerPact P-frame circuit breaker

Electrical operator with Modbus communications (two-step,

stored energy). Includes spring-charging motor and actuators

for serial communication control of open/close operation

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Circuit Breaker Micrologic® Electronic Trip Unit Options

Description Application Space (Inches)

350–600A Breakers (L-frame)

Standard function LX substituted for LA/LH/LI LSI1

1Ground fault tripping functions can be added to these trip units. See the Ground Fault Options table on

page 84.

Full function LE substituted for LA/LH LSI

700–2500A Circuit Breakers (PowerPact M-, P-, and R-frame)

Standard

5.0 LSI

Ammeter

5.0A LSI

6.0A LSIG

Trip unit power supply (recommended for ammeter trip unit)

Power

5.0P LSI

6.0P LSIG

Trip unit power supply (provided standard for power trip unit)

Harmonic

5.0H LSI

6.0H LSIG

Trip unit power supply (provided standard for harmonic trip unit)

Modbus Breaker Communications Module (BCM)

installed and unwired (Includes 24 Vdc

communications power supply) A trip unit only

Modbus BCM unwired (Includes 24 Vdc

communications power supply) P or H trip unit

Wiring to MCC Modbus network (adds network

cable to main/branch unit) Intelligent MCC or Transparent

Ready MCC

Communications for shunt trip A, P, or H trip unit

Model 6 Motor Control Centers

Application and General Information Unit Options

84 07/2009

Ground Fault Options

Description Application Ground

Fault Type Space

(Inches)

Ground fault protection (zero sequence)

Size 1–2 starter

Size 3 starter 9

Size 4–5 starter 12

Size 6 starter 0

Size 6 autotransformer

Order

appropriate

Micrologic

electronic trip

unit option

(6.0A, P or H)

15–250 A branch circuit breaker 1

1Not available on Compac 6.

GFM 6110–250 A main circuit breaker

200 A main/branch fusible switch GA

300–600 A main or branch circuit breakers LX MX C/B 2

212 in. of additional space required for 3-phase, 4-wire systems with neutral lug option.

300–600 A main or branch circuit breakers LE ME C/B

600–800 A main or branch switch

Order

appropriate

Micrologic

electronic trip

unit option

(6.0A, P or H)

0 (3 W)

12 (4 W)

1000-1200 A branch switch or top incoming main switch 0

1000-1200 A bottom incoming main switch 0 (3 W)

12 (4 W)

800-1200 A main or branch circuit breaker (80%)

800 A main or branch circuit breaker (100%) 0 (3 W)

15 (4 W)

1200 A main or branch circuit breaker (100%)

1600-2500 A main circuit breaker or switch 0

Model 6 Motor Control Centers

Unit Options Application and General Information

07/2009

Control Terminal Block

Wiring Options

Description Application Space

(Inches)

Additional terminal blocks

NOTE: Max. 20 control terminals per unit; 12 max. with power

terminals

All starters—unwired (per terminal point) 0

All starters—wired (per terminal point) 0

Control power transformer leads X1 and X2 wired to the

control terminal block (standard on industrial package) All starters 0

Power terminal blocks (will reduce max. control from 20 to 12) Size 1–2 starters 0

Size 3 starters

Starter control wiring; size, and type

#16 AWG Type MTW (standard) 0

#14 AWG Type MTW 1

1Not applicable to Compac 6, Altivar®, or Altistart® units.

#16 AWG Type SIS

#14 AWG Type SIS 0

Standard wire labels—plastic sleeve All starter control wiring—Schneider Electric numbering 0

Custom wire labels—plastic sleeve All starter control wiring—User-defined (13 characters

max.) 0

Ring tongue terminals 2

2Provided where possible and allowed by UL procedure.

All starter control wiring

Copper crimp lugs

(For customer connections only; cable sizes must be

provided)

Main lug compartments 0

Size 1-4 starters , 3

3Not UL Listed.

15–150 A main/branch circuit breaker 3

175–250 A main/branch circuit breaker 0

15–100 branch fusible switch 3

110–225 A main/branch fusible switch 6

600-800 A Main Switch 12

800 A Main or Branch Circuit Breaker 15

All other units 6

Main/branch mechanical lug alternatives

Aluminum Lug for 600 kcmil Cu or Al cable or 750 kcmil

compacted Al cable (2/phase, AL800P7K kit)

700–800 A Circuit Breaker 15

600–800 A Main Switch 12

Aluminum Lug for 600 kcmil Cu or Al cable

(3/phase, AL1200P6KU kit)

1000–1200 A Circuit Breaker (80% rated) 15

1000–1200 A Circuit Breaker (100% rated) 0

1000–1200 A Top Incoming Main Switch

1000–1200 A Bottom Incoming Main Switch 12

Aluminum Lug for 750 kcmil compacted AL cable

(3/phase, AL1200P7KU kit)

1000–1200 A Circuit Breaker (80% rated) 15

1000–1200 A Circuit Breaker (100% rated) 0

1000–1200 A Top Incoming Main Switch

1000–1200 A Bottom Incoming Main Switch 12

Special wire colors—3 max. All starter control wiring 0

Optional Burndy Type Copper Crimp Lugs

Circuit Breaker Frame Maximum Amps Burndy Crimp Lug

Lug Wire Range Lugs Per Phase

H60 #6–1/0 Cu 1

150 #4–2/0 Cu 1

J150 #4–2/0 Cu 1

250 2/0–300kcmil Cu 1

P (molded case switch) 600 4/0–500 kcmil Cu 2

M and P (circuit breakers/switches) 800 500–750 kcmil Cu

Model 6 Motor Control Centers

Application and General Information Miscellaneous Units

86 07/2009

AccuSine® Power Correction System

General Information

The AccuSine Power Correction System (PCS) is an active harmonic filter (AHF) which actively injects

opposite harmonics current on the source side of the load and it:

When installed in the MCC, the AccuSine PCS will compensate for harmonic loads within and fed by the

MCC. This is an essential function as MCCs continually incorporate more and more solid state components

such as AC drives, soft starts, and PLCs, which increase the potential for power quality issues.

The Model 6 MCC AccuSine package includes:

Decreases harmonic related

overheating of cables, switchgear,

and transformers.

Reduces downtime caused by

nuisance thermal tripping of

protective devices.

Increases electrical network

reliability and reduces operating

costs.

Corrects to the 50th harmonic;

reduces harmonics level to meet

IEEE 519 at the MCC main

incoming power connection.

Cost effective approach to groups of

harmonic loads and as an

alternative to multi-pulse drives.

50 A or 100 A rated model Accusine

PCS for 208–480 V

Door-interlocked disconnect and

fusing

Door-mounted display (HMI) for

programming and monitoring

Suitable for use in 100 kAIC rated

MCCs

UL/cUL Listed

Rated for NEMA/EEMAC Type 1 or

Type 1A (Gasketed) enclosures.

Not available for Type 12 or Type 3R

enclosures.

Two current transformers for

installation by contractor at the MCC

main incoming cables. Three CTs

are supplied when single-phase

loads are present.

Up to five multiple units can be

connected in parallel to increase

compensation up to 500 A of

harmonic current compensation.

Standard MCC bus and enclosure

depth allow the active filtering to be

retrofitted onto the MCC for future

expansion of harmonic compensation.

Typical MCC AccuSine Installation

Upstream

Electrical

Network

Corrected Loads

MCC Enclosure

Uncorrected Loads

Active

Filter VFD VFD

MMMM

Model 6 Motor Control Centers

Miscellaneous Units Application and General Information

07/2009

Accusine PCS Sizing

A harmonic study is not required to select the size of the AccuSine PCS installation, because when

AccuSine PCS is installed it becomes a lower impedance for harmonics than the existing power

supply. Unlike passive devices, AccuSine PCS is easy to apply and cannot be overloaded. For proper

sizing, contact your local Schneider Electric representative, or visit the Schneider Electric website

(www.schneider-electric.us) for downloadable sizing software. To expedite the product selection

process, have a single line diagram and/or details of the application including sizes of transformers,

non-linear and linear loads, and any existing filters and capacitors.

AccuSine Power Correction System for Model 6 MCC

Total

Current

(RMS Amps)

Disconnect Switch

(Amps) Voltage Rating

(Volts) Space (Inches)

50 100 208/240/480 72

(20 W x 20 D)

100 150

Model 6 Motor Control Centers

Application and General Information Miscellaneous Units

88 07/2009

Single-Phase Distribution Transformers 120/240V Secondary

Distribution transformers are provided with a primary circuit breaker or fusible switch.

5 kVA and 10 kVA transformers may be mounted in a standard 20 in. W x 15 or 20 in. D section. 15 kVA

and 25 kVA transformers must be mounted in a 20 in. W x 20 in. D section.

302 °F (150 °C) temperature rise transformers are supplied as standard.

NOTE: 5 kVA and 10 kVA transformers are available in multiple section shipping splits. All other

transformers listed are bottom mounted in a single shipping split. Shielded isolation transformers are

available, and other primary voltages can be supplied.

Distribution Transformer

Disconnect kVA Rating Disconnect Amps Space (Inches)

480 V

Primary

Circuit Breaker

0.5 kVA 15 6

1 kVA 15 12

1.5 kVA 15 15

5 kVA 15 21 1

1Unit mounted transformers are available in 5 kVA and 10 kVA ratings. Requires a 30 in. space.

10 kVA 30 21 1

15 kVA 40 36

25 kVA 60 36

240 V

Primary

Circuit Breaker

0.5 kVA 15 6

1 kVA 15 12

1.5 kVA 15 15

5 kVA 30 21 1

10 kVA 50 21 1

15 kVA 70 36

25 kVA 125 36

600 V

Primary

Circuit Breaker

0.5 kVA 15 6

1 kVA 15 12

1.5 kVA 15 15

5 kVA 15 21 1

10 kVA 20 21 1

15 kVA 30 36

25 kVA 50 36

480 V

Primary

Fusible Switch

0.5 kVA 15 6

1 kVA 15 12

1.5 kVA 15 15

5 kVA 15 21 1

10 kVA 25 21 1

15 kVA 35 36

25 kVA 60 36

240 V

Primary

Fusible Switch

0.5 kVA 15 6

1 kVA 15 12

1.5 kVA 15 15

5 kVA 25 21 1

10 kVA 45 21 1

15 kVA 70 36

25 kVA 125 48

600 V

Primary

Fusible Switch

0.5 kVA 15 6

1 kVA 15 12

1.5 kVA 15 15

5 kVA 10 21 1

10 kVA 20 21 1

15 kVA 30 36

25 kVA 50 36

Model 6 Motor Control Centers

Miscellaneous Units Application and General Information

07/2009

Three-Phase Distribution Transformers 208Y/120 V Secondary

Distribution transformers are provided with primary circuit breaker or fusible switch. 302 °F (150 °C)

temperature rise transformers are supplied as standard. Three-phase distribution transformers must

be located in 20 in. deep sections.

NOTE: All transformers listed must be bottom mounted in a single shipping split. Shielded isolation

transformers are available and other primary voltages can be supplied.

Disconnect kVA Rating Disconnect Amps Space (Inches)

480 V

Primary

Circuit Breaker

9 kVA 15 30

15 kVA 20 30

30 kVA 40 36

45 kVA 60 36 1

1Requires a 25 in. wide structure.

240 V

Primary

Circuit Breaker

9 kVA 30 30

15 kVA 40 30

30 kVA 90 36

45 kVA 125 36

600 V

Primary

Circuit Breaker

9 kVA 15 30

15 kVA 20 30

30 kVA 40 36

45 kVA 50 36

480 V

Primary

Fusible Switch

9 kVA 15 30

15 kVA 20 30

30 kVA 40 36

45 kVA 60 36

240 V

Primary

Fusible Switch

9 kVA 25 30

15 kVA 40 30

30 kVA 80 36

45 kVA 125 48

600 V

Primary

Fusible Switch

9 kVA 10 30

15 kVA 20 30

30 kVA 35 36

45 kVA 50 36

Model 6 Motor Control Centers

Application and General Information Miscellaneous Units

90 07/2009

Distribution Panelboards

Panelboards are provided with space for branch circuit breakers. All panelboards are provided with a

main circuit breaker. Copper bus is standard. The 3-phase Type NQ 30 circuit is also available with a

main lug.

NOTE: NQ 18- and 30-circuit panelboards utilize back-fed main units, thus reducing the available pole

spaces for circuit feeds. NF panelboards must be located in the top of the section.

Ratings:1-Phase NQ = 120/240 V

3-Phase NQ = 240 V

3-Phase NF = 277/480 V

Factory Installed Panelboard Branch Circuit Breakers

The branch circuit breakers below are rated for 10,000 AIR at the voltage listed. Higher interrupt

ratings are available.

Distribution Panelboard

in an MCC

Unit Type 1-Pole Spaces Main Amperes Interrupting

Rating Space

(Inches)

1-Phase

Type NQ 18 100 — 27

42 225 — 51

3-Phase

Type NQ

18 100 — 27

30 100 — 33

42 225 — 51

Main Lug 30 100 — 33 1

1Main Lug.

3-Phase

Type NF

30 — 65 kAIC 45 2

225 in. wide structure.

30 — 100 kAIC 45

42 — 65 kAIC 57

42 — 100 kAIC 57

Panelboard Type Branch Circuit

Breaker Type Poles Amps

QOB branch circuit breakers are standard,

unless otherwise noted.

QO/QOB

120/240V

1 10–70

2 10–125

3 10–100

QO/QOB – GFI

120/240V

1 15–30

2 15–60

QO/QOB

240V 2 15–100

EDB branch circuit breakers are standard,

unless otherwise noted.

EDB

(bolt-on only)

1 15–70

2 15–125

3 15–125

EGB

(bolt-on only)

1 15–70

2 15–125

3 15–125

EJB

(bolt-on only)

1 15–70

2 15–100

3 15–100

Model 6 Motor Control Centers

Miscellaneous Units Application and General Information

07/2009

Empty Mounting Units

Empty mounting units are available in 3-inch increments from 6 in. through 48 in. high.

Includes a removable undrilled unit and a hinged door to provide space for customer mounted devices.

Unit dimensions are 13.85 in. wide by 9.5 in. deep. Height is dependent on unit selected.

Empty mounting units may be used in 20 in. wide by 15 in. or 20 in. deep sections.

Full Section Empty Mounting Units (Relay Section)

Consists of a removable undrilled mounting pan and a full height door on structure for customer mounted

devices. The section does not contain vertical bus or a vertical wireway. The section cannot be modified

to accept plug-on units. Horizontal bus is supplied to allow feed through to additional MCC sections.

Panel height: 68 in.

Panel depth (clearance from panel to door):

11.7 in. (15 in. deep section)

16.7 in. (20 in. deep section)

Unwired Master Terminal Compartment

Includes a removable 12 in. unit, hinged door, unwired control and power terminal blocks, and mounting

provisions. Compartment may be located anywhere in a 20 in. wide by 15 in. or 20 in. deep section.

Blank Doors

Blank covers are available in 3-inch increments from 3 in. through 36 in. high. Factory-assembled MCC

orders are automatically provided with the proper number of blank covers to fill any unused space in

each section.

Future prepared space may be provided if desired; to provide future prepared space, add the desired

number and size required.

Blank doors are required to fill prepared space when rearranging plug-in units in an existing motor

control center.

Empty Mounting Unit

Relay Section

Section

Width Panel

Width Space

(Inches)

20 in. 18.13 in.

25 in. 23.13 in.

30 in. 28.13 in.

35 in. 33.13 in.

Omit horizontal bus for listed sections

—— 0

3-point door latch

—— 0

Master Terminal

Compartment

(Unit Shown Unwired)

Terminal Provisions Space

(Inches)

100 control points

12100 control points and 15 power points

70 control points and 30 power points

Model 6 Motor Control Centers

Application and General Information Miscellaneous Units

92 07/2009

Power Factor Correction Capacitors

Power Factor Correction Capacitors listed are environmentally safe and include fuses for protection of

the capacitor. These capacitors include discharge resistors as required by the NEC. Capacitors are

mounted directly below the corresponding starter and are connected between the starter

contactor and overload relay. Installation of capacitors does not affect normal selection of overload

thermal units, starters, or disconnects.

Do not use capacitors on controllers subject to plugging or jogging. It is recommended that only Full

Voltage Non-Reversing (FVNR) starters be provided with power factor correction capacitors.

Capacitors can be applied to other types of starters, but auxiliary contactors are often required. Some

types of starters are not compatible with individual motor correction. Contact the MCC TAG for details

or application assistance.

Selection

To select unit type, determine kvar rating from table below. Match kvar rating to last digits listed on unit type.

kvar Rating Space

(inches)

208 V 240 V 480 V 600 V

1.5

2.5

7.5

1.5

2.5

7.5

12.5

17.5

1.5

2.5

7.5

12.5

13.5

17.5

22.5

27.5

1.5

2.5

7.5

12.5

17.5

22.5

27.5

12.5

17.5

22.5

27.5

32.5

37.5

42.5

32.5

37.5

22.5

27.5

32.5

37.5

42.5

—18

Model 6 Motor Control Centers

Miscellaneous Units Application and General Information

07/2009

Capacitor Sizing Table—480 V

Size capacitors (in kvar) to the particular motor loads to be corrected. If motor characteristics are not

available, the values in the last column provide approximate sizing.

RPM – NEMA/EEMAC Design Approx.

Value When

Motor Data Is Not

Available

3600 1800 1200 900 720 600

BBCBCDBCB B

3 1.5 1.5 1 2 1 1 3 2 3 4 1.5

5 22.523224245 2

7.52.5334325456 2.5

10 4 4 4 5 4 3 6 4 7.5 8 3

15 5 5 5 6 5 5 7.5 5 8 10 4

20 6 6 5 7.5 5 6 9 6 10 12.5 5

25 7.5 7.5 6 8 6 6 10 6 12.5 17.5 7

30 8 8 7.5 10 7.5 10 15 9 15 20 9

40 12.5 15 10 15 10 12 17.5 12 20 25 10

50 15 17.5 12 20 12 15 22.5 15 22.5 30 12

60 17.5 20 17.5 22.5 17.5 18 25 18 30 35 15

75 20 25 20 25 20 22.5 30 22.5 35 40 18

100 22.5 30 27.5 30 27.5 30 35 27.5 40 45 22.5

125 25 35 35 35 35 37.5 40 37.5 45 50 27.5

150 30 40 37.5 40 37.5 45 50 45 50 60 32.5

200 35 50 45 50 45 60 70 60 70 90 40

250 40 60 55 60 55 70 80 70 90 100 50

300 45 70 65 75 65 75 100 90 100 120 55

350 50 75 — 90 — — 120 — 120 135 65

400 75 80 — 100 — — 130 — 140 150 70

Model 6 Motor Control Centers

Application and General Information Miscellaneous Units

94 07/2009

PowerLogic® Ethernet Gateways

The PowerLogic devices listed below provide an interface between Ethernet and Modbus® devices. In

addition to the high-speed communications, the Ethernet connectivity opens up information access via

standard web browsers. The gateway can connect with up to 64 Modbus or PowerLogic devices. Each

unit includes the gateway, control power disconnect, fused control power transformer, and DC power

supply. Connection cables to the Modbus or Ethernet network are not included.

Transparent Ready® Equipment Configurations

MCC Transparent Ready options provide the ability to access pre-programmed/pre-linked web pages in

the MCC equipment. This allows the customer to quickly commission and view a wide range of process

data using web browser software. The MCC can be pre-tested and pre-wired at the factory with the

Ethernet connection ready for the customer’s network.

The Transparent Ready levels below offer web page choices for real time data, enhanced graphics,

and reporting capability.

Gateway Ethernet Switches

A gateway Ethernet switch serves as a hardware interface between an EGX Ethernet gateway and

other Ethernet connections such as the customer's Ethernet network outside the MCC, and the

programming port on the outside of the MCC door. A choice of switch types is available, depending on

the hardware (copper wire or fiber optic) the customer would prefer. For Transparent Ready MCCs, the

default selection is 10/100 Mbps if no other choice is made.

NOTE: The Ethernet switches and bulkhead port connector are not provided unless a Transparent

Ready level is requested. For customers requesting network provisions only, the gateway is provided

with no switches.

Description Application Space

(Inches)

EGX100 PowerLogic Ethernet Gateway with one UTP Ethernet Port (10/100 Mbps), one RS-485 serial

port, and one RS-232 serial port.

EGX300

PowerLogic integrated gateway-server provides serial support for Modbus RTU, Modbus ASCII,

JBus and PowerLogic protocols to support a wide range of devices. Includes one 10/100BaseTx

Ethernet port and one serial port configurable for RS485 (2/4-wire) or RS232 (RJ45). Connects

up to 64 network devices. Includes 512MB webserver memory.

Description Application

TR1—Essential

Web enabled and factory configured for Ethernet Mains monitoring only 1

1Requires one of the following: PowerLogic power meter with an ECC card, PowerLogic circuit monitor with an ECC card, or an

EGX gateway with Ethernet switches.

Five web pages of real time data using Web-Generator 1 (WG-1) 2

2Web-Generator (WG-1) software provides basic informational pages for use with the PowerLogic ECC or EGX Ethernet Gateway.

Main + downstream devices monitoring 3

3Requires at least one Modbus compatible device (TeSys T Motor Management Controller, PowerLogic Meter, Altivar 61/71 AC drive,

or Altistart Soft Start). Requires one of the following: PowerLogic power meter with an ECC card, PowerLogic circuit monitor with an

ECC card, or an EGX gateway with Ethernet switches.

TR2—Deluxe

Features of TR1 Plus graphical pages for use on EGX system supported software:

Web-Generator 2 (WG2) 4

4Web-Generator (WG-2) software provides advanced informational pages for use with the PowerLogic EGX Ethernet Gateway.

Main + downstream devices 5

5Requires at least one Modbus compatible device (TeSys T Motor Management Controller, PowerLogic Meter, Altivar 61/71 AC

drive, or Altistart Soft Start). Requires an EGX300 gateway with Ethernet switches.

Description Space Adder

10/100 Mbps Ethernet RS485 Switches (Available with EGX Gateways only)

Provides five 10/100 Mbps twisted pair (RJ-45 connectors)ports for connecting an Ethernet factory network and

mounted programming port to the EGX Gateway(s)

Fiber Optic Interface Switches (Available with EGX Gateways only)

Provides four 10/100Mbps twisted pair (RJ-45 connectors) ports and one 100Mbps fiber optic port

(100 Base=hFX, Duplex SC connector) for connecting an Ethernet factory network and mounted programming

port to the EGX Gateway(s).

Model 6 Motor Control Centers

Miscellaneous Units Application and General Information

07/2009

High Resistance Ground Unit

The High Resistance Ground Unit offers ground fault control and monitoring for power systems using

ungrounded delta or wye transformer secondaries. The Model 6 Motor Control Center high resistance

ground unit can be applied to 480 V and 600 V ungrounded delta and wye, 50/60Hz systems. The high

resistance ground unit is available for both 3-phase, 3-wire wye and delta power systems. The Model 6

high resistance ground unit facilitates a controlled, sequential process shutdown, thereby reducing the

adverse affects resulting from an uncontrolled shutdown.

Standard Package Features:

Resistor bank limits overvoltages by grounding the system neutral through impedance

High resistance ground indication/control panel

The high resistance neutral grounding equipment will contain the following equipment on an operator's

panel on the front of the unit as standard:

Line Disconnect

Test Push-button

A digital display unit containing the following functions:

— Green Light to Indicate “Normal” Operating Status

— Flashing red Light to Indicate “Fault” Status

— Red Light to Indicate “Harmonic” Status

— Fault reset

— Alarm silence

— Pulse on/off

— Amber light to indicate “pulse” status

— Indication of Under-Voltage condition

— Indication of Under-Current condition

— Ethernet/Modbus port for Communications

— Single setpoint Meter Relay

The relay to monitor fundamental voltage and current will incorporate an adjustable time delay function

to avoid spurious alarms.

The relay to monitor harmonic voltage and current will incorporate an adjustable time delay function to

avoid spurious alarms.

High Resistance Ground Unit for Model 6 MCC

System Voltage Configuration Current Range

(Ground Current Amps) Space

(Inches)

480 V, 3-phase, Wye or Delta 1–10 72

(20 W X 20 D)

600 V, 3-phase, Wye or Delta 2–7

Additional Options

Portable hook-on ammeter with carrying case 0

Model 6 Motor Control Centers

Application and General Information Miscellaneous Units

96 07/2009

ASCO 7000 Series Automatic Transfer Switches With

Microprocessor Control Panel (Non-UL Listed)

The standard automatic transfer switch is the ASCO 7000 Series switch. High speed transfer of loads

between alternate sources of power, regardless of ampacity size, is achieved by a reliable, field proven

solenoid operating mechanism. When combined with a programmable microprocessor controller with

keypad and LCD display, the automatic transfer switch offers the most advanced method of

transferring all types of loads, such as, motors, electronic drives, UPS’s, and microprocessor-based

systems. 7000 Series automatic transfer switches are open transfer in ampacity sizes from 30 through

1200 A. If you have any questions, contact MCC TAG.

•Conventional two-position transfer configuration with automatic control

•UL Listed to 1008 Transfer Switch Equipment and CSA certified to CSA 22.2 No. 178-1978

Automatic Transfer Switches

•Independently qualified and certified listed to IEC 60947-6-1, CE marked (optional; limited to

certain accessories)

•Rated up to 600 Vac, 30–1200 A

•Reliable and field proven solenoid operating mechanism

•High withstand and close-on ratings including 30 cycle withstand current rating for optimum

flexibility in circuit breaker coordination (600–1200 A)

•Solid, switched, or overlapping neutral conductor options

•Front replaceable main and arcing contacts (800–1200 A)

•Programmable microprocessor controller with keypad and LCD display

•Centrally located terminal block for customer control connections (260–1200 A)

•16 mm, industrial grade control switches and indicating lights

•Switch position indicators and true source acceptability lights

•Standard ground conductor connections

•Four auxiliary contacts—two contacts closed when switch is in normal position and two contacts

closed when switch is in emergency position

ASCO 7000 Series Automatic Transfer Switches With Microprocessor Control Panel

Rating Lug Range Space (Inches)

3Ø3W (can be used with solid neutral through 800 A; ASCO accessory 22)

30 A (1) #14–#4/0 361

1Must be top or bottom located.

70 A (1) #14–4/0 36

100 A (1) #14–4/0 36

150 A (2) 1/0–250 kmcil or (1) #4–600 kcmil 72 (25 W) 2

2No vertical bus or vertical wireway.

260 A (2) #1/0–250 kcmil or (1) #4–600 kcmil 72 (25 W)

400 A (1) #4–600 kcmil or (1) #4–600 kcmil 72 (25 W)

600 A (3) #2–600 kcmil 72 (25 W x 20 D)

800 A (4) 1/0–750 kcmil 72 (30 W x 20 D)

1200 A (4) 1/0–750 kcmil Two full sections required:

1 @ (30 W x 20 D)

1 @ (20 W x 20 D)

3Ø4W with switched neutral (ASCO accessory 28)

30 A (1) #14–4/0 36

70 A (1) #14–4/0 36

100 A (1) #14–4/0 36

150 A (2) 1/0–250 kcmil or (1) #4–600 kcmil 72 (25 W)

260 A (2) 1/0–250 kcmil or (1) #4–600 kcmil 72 (25 W)

400 A (2) 1/0–250 kcmil or (2) 1/0–250 kcmil 72 (25 W)

600 A (2) #2–600 kcmil 72 (25 W x 20 D)

800 A (4) 1/0–750 kcmil 72 (30 W x 20 D)

1200 A (4) 1/0–750 kcmil Two full sections required:

1 @ (30 W x 20 D)

1 @ (20 W x 20 D)

Model 6 Motor Control Centers

Miscellaneous Units Application and General Information

07/2009

Standard Features and Optional Accessories

Description ASCO

Accessory

Code

Accessory panel required for some ASCO accessories.1

118 in. additional space required for 30–100 A switches; no additional space required on larger switches.

Extended time delay on engine start.2

2Requires accessory panel option AP.

3-phase differential voltage sensing of alternate source.24E

3-phase overvoltage sensing of normal source.24H

Reset switch to manually bypass time delay on retransfer to normal. 6B

Reset switch to manually retransfer to normal source after time delay. 6C

Toggle and selector switches to permit manual or automatic reset to normal. 6D

Normal/alternate source available pilot lights. 9C/9D

Push-to-test pilot lights for connected-to-normal and connected-to-emergency source. 9E/9F

Engine generator exercise timer with switch to select with load or without load. 11C

Three position engine control switch: Stop/Auto/Engine Test. 12

(2) auxiliary contacts that close when switch is connected to normal source 14A

(2) auxiliary contacts that close when switch is connected to emergency source 14B

Two-pole, double throw contacts operate when emergency source voltage is present at transfer switch terminals. 18B

Two-pole, double throw contacts operate when normal source voltage is present at transfer switch terminals. 18G

Solid neutral for 3-wire switch. (Cannot be used if either source has ground fault protection.)

30–150 A switch

260 A switch

400 A switch

600 A switch

800 A switch

1200 A switch

In-phase monitor for motor loads; monitors sources and retransfers to normal when both sources are phase;

prevents excess transients on transfer. 27

Equipment ground lug 33

Selective load disconnect control contacts that operate with time delay prior to and/or after load transfer and retransfer. 31Z

Serial communication module for remote communication 72A

Connectivity module for remote communications using Ethernet TCP/IP networks. 72E

Model 6 Motor Control Centers Intelligent Motor Control Centers

98 07/2009

Model 6 iMCCs

Model 6 iMCCs feature the same overall structure and unit features as Model 6 motor control centers

with additional “intelligent” capabilities. Schneider Electric supports two popular methods for

configuring Model 6 iMCCs to customize your application:

•iMCC-Hardwired I/O: PLC Interwiring

•iMCC-Network: Network Cabling

iMCC- Hardwired I/O: PLC Interwiring offers a hardwired I/O system in the Model 6 MCC that

provides basic information and control capabilities. With the I/O mounted in the MCC, the starters are

wired to the I/O at the Schneider Electric manufacturing plant and the system is tested prior to

shipment. This pre-wired MCC is more cost effective than separately mounting and wiring the

automation hardware outside of the MCC. This option can also include an independent network.

iMCC Network: A key feature of our iMCC-Network solution is the integration of intelligent devices and

device level networks for control and automation that delivers improved performance. Popular network

protocols such as CANopen, DeviceNet™, Ethernet, Modbus®, and PROFIBUS communicate directly

to every unit of the iMCC for an effective method of connecting centralized control to widely distributed

I/O. The network of your choice creates a common thread for a variety of motor control equipment that

not only improves control, but also allows for simple and easy installation and operation.

Networking allows for easy monitoring of critical data of each motor or load connected to the iMCC,

enabling precise process control at all times. With this information, your staff can respond to potential

problems proactively. Real-time access to information and records of last faults allows for simplified

diagnostics and reduced downtime.

Using network control to consolidate all I/O communications significantly reduces the amount of

tedious wiring that would normally be required for a hardwired I/O MCC with similar functionality. We

design a network cabling solution that is appropriate for your selected communication network. Our

industry-leading full-depth wireway effectively separates network cabling from high voltage cabling.

Additionally, our standard wireway barrier isolates the communication cabling from the load cabling

routed in the vertical wireway.

Experience the benefits of an iMCC network:

•Remote monitoring capability

•Reduced downtime and system interwiring

•Control to every bucket

•Lower commissioning costs

•Flexible configuration

•Cabling system compliant to applicable standards.

•DeviceNet solution is Open DeviceNet Vendor Association (ODVA) certified.

Model 6 Motor Control Centers

Intelligent Motor Control Centers

07/2009

Common Mounting Configurations for Automation Components

PLC components are packaged in Schneider Electric MCCs in two distinct configurations: a unit-mount

configuration and a full-section configuration. The unit-mount configuration supports plug-on

installation and location flexibility in the MCC. The full-section configuration provides increased space

for mounting PLCs and associated equipment. Two full sections can be joined to provide maximum

mounting space. For additional automation component mounting information, consult the Model 6

MCC catalog.

NOTE: The configurations shown below represent the maximum PLC component densities available.

Power distribution, power supplies, component selection, communication protocol, fusing, interposing

relays, and CableFast modules affect the actual component densities. The configurations shown are

standard configurations. Schneider Electric can also provide custom configurations to meet your

specific requirements.

PLC Type

Unit Mounts Special Units (no wireway) 1

1Special units include 18, 24, 30, and 36 in. high configurations. These units are not plug-in and take up the vertical wireway. They must be mounted at the bottom

of a 20 in. wide section.

Full Sections

12 in.

(13.5 x 11 in.) 18 in.

(13.5 x 17 in.) 18 in. Height 24 in. Height 20 in. wide

(16.4 x 63.4 in.) 25 in. wide

(21.4 x 63.4 in.) 30 in. wide

(26.4 x 63.4 in.) 35 in. wide

(31.4 x 63.4 in.)

Momentum™ 2 modules 4 modules 6 modules 8 modules 12 modules 18 modules 24 modules 30 modules

Micro™ 1 PLC (fixed I/O)

and power supply 2 PLC

(fixed I/O) 1 PLC and

1 Expansion 1 PLC and

2 Expansion

up to 5

interconnected

PLCs

up to 5

interconnected

PLCs

up to 5

interconnected

PLCs

up to 5

interconnected

PLCs

Compact™ up to one 5-slot rack

plus one 2-slot rack up to two

5-slot racks up to two

5-slot racks up to three

5-slot racks up to two

5-slot racks up to four

5-slot racks

Quantum™ N/A up to one

6-slot

backplane

up to one

10-slot

backplane

up to one

10-slot

backplane

up to four

6-slot

backplanes

up to four

10-slot

backplanes

up to four

10-slot

backplanes

up to four

16-slot

backplanes

Premium™ N/A up to one

8-slot

backplane

up to one

8-slot

backplane

up to two

6-slot

backplanes

up to four

8-slot

backplanes

up to four

12-slot

backplanes

up to four

12-slot

backplanes

up to four

12-slot

backplanes

PLC Foldout Rack

Description Application

6 in. foldout rack 12 in. unit or larger

12 in. foldout rack 18 in. unit or larger

18 in. foldout rack 24 in. unit or larger

Options for Automation Components in MCCs

Description of Charge Application Space (inches)

24 Vdc Control power supply rated 8 A — 6

Power supply unit 500 VA/115 Vac —

120 Vac starter interposing relay Size 3–5 starters

24 Vdc starter interposing relay —

Telemecanique relay module Size 3–5 starters

Surge suppressor All starters

Model 6 Motor Control Centers Intelligent Motor Control Centers

100 07/2009

iMCC-Network Cabling

Class 1 cabling is 600 V, 8 A rated, 15 AWG power pair, 18 AWG data pair with a braided shield and

drain. This cable solution provides current protection, eliminating the need for a vertical wireway

communication barrier. (The communication barrier option is still available.)

Class 2/CM cabling is 600 V, 22 AWG, 4-conductor with a foil shield and drain.

Class 2/CM and CAT5E rated cable solutions require a mechanical communication barrier for standard

sections.

Ethernet Switches

There are two primary ways to configure your Ethernet communications network:

Distributed switch(es) per shipping split

Centralized switch(es) per MCC

Application Notes:

48 ports maximum per unit

Recommend using only 80% of ports for I/O, interconnectivity expansion, etc.

8 port switch unit can be mounted anywhere

Switch units with more than 8 ports must be bottom located

Switch units require a separate 6 in. unit, 8 A power supply; see the table below.

Network Cabling

iMCC Network Cabling

Network Class/Rating

CANopen 1

1Optional Class 2/CM cabling available for DeviceNet and CANopen applications. Consult the MCC TAG for pricing

and Quote-To-Cash selector assistance.

Class 1

DeviceNet 1Class 1 2

2Open DeviceNet Vendor Association (ODVA) approved.

Ethernet TCP/IP CAT5E 3

3CAT5E cables connect devices to centralized switch. See the “Ethernet Switch Options” table below.

Modbus Class 2/CM

PROFIBUS Class 2/CM

Option Description

Communication barrier 4

4Optional for Class 1 cabling only. Communication barrier mounted in vertical wireway of Standard Section

supplied as standard with Ethernet, Modbus, and PROFIBUS Class 2/CM applications.

Mounted in vertical wireway. Adds additional mechanical protection for network cable.

Ethernet Switch Options

Switch Ports Space

812

1824

24 Vdc power

supply, rated 8 A 6

Model 6 Motor Control Centers

Intelligent Motor Control Centers

101

07/2009

Repeaters/Bridges/Gateways

Repeaters, bridges, and gateways are recommended for the following applications/reasons:

Provide a convenient termination point for network cabling.

Allow the iMCC to be isolated and tested as a subsystem for ease of troubleshooting.

iMCC is located in the middle of a network. (Two repeaters are used in this configuration.)

Ground levels can vary from enclosure to enclosure, thus the possibility exists of introducing noise into a system if a repeater

is not implemented.

NOTE: Repeaters are typically not required for short cable runs routed in the same area.

Model 6 iMCC Bridges/Repeaters

Network Description Space

(Inches) Notes

Modbus®RS-485 repeater 9Manufactured by B&B Electronics

PowerLogic® RS-232/RS-485 converter, with 120 Vac Power Supply

PROFIBUS

24 Vdc/8 A Power Supply 6 Default with iMCC-Network with PROFIBUS

PROFIBUS Cable Terminations

Default with iMCC-Network with PROFIBUS.

Required with MLPII starters.

PROFIBUS Cable Terminations with RS-485 Repeater

Manufactured by Siemens

PROFIBUS Cable Terminations with PROFIBUS Active Terminations

PROFIBUS Cable Terminations with RS-485 Repeater and PROFIBUS Active

Terminator

DeviceNet™ 24 Vdc/10 A Power Supply 6

Repeater 9

Model 6 Motor Control Centers

Technical Overview Short Circuit Current Ratings

102 07/2009

Technical Overview

Short Circuit Current Ratings

Motor control centers are being applied to electrical systems with increasingly high available fault

currents. Because of ever increasing short circuit requirements, Schneider Electric continually pursues

higher ratings through new design and testing.

Many “buzz” words and terms are used to describe short circuit ratings and how they relate to motor

control centers. Here are a few with a description of what they actually mean:

Bus Bracing or Withstand Rating

This term describes the capacity of the bus network to withstand the mechanical forces generated

during a short circuit (fault).

Integrated Equipment Rating

This term is not clearly defined, especially when applied to motor control centers. While it is often assumed

that this term means series connected short circuit ratings or short circuit current ratings, this term can also

have other interpretations. Integrated equipment ratings are generally not provided for MCCs.

Interrupt Rating

This term describes the maximum fault current level that a particular device can interrupt. This type of

rating applies only to devices that operate to interrupt a short circuit when it occurs. This term does not

apply to power bus or components of the electrical system that do not interrupt current. Different units

within the same motor control center may have different interrupt ratings. Further, the interrupt rating

does not take into consideration the effect of a main device or the bus withstand rating.

Series Connected Short Circuit Current Ratings

This term describes short circuit ratings that take into consideration the effect of a main overcurrent

protective device located in the motor control center or in upstream equipment. It does not necessarily

mean that the main has to open whenever a fault occurs. Many engineers feel that series connected short

circuit ratings mean that a system cannot be “coordinated” (coordination refers to a system’s capability of

interrupting a fault at the lowest level thereby limiting the amount of equipment shut down as a result of that

fault). System coordination should be considered when designing any electrical distribution system and the

level of coordination will often dictate the type of equipment used. It is possible to maintain acceptable levels

of system coordination while utilizing series short circuit ratings and alternately, avoidance of series

connected short circuit ratings will not automatically mean that the system will be fully coordinated. Fault

coordination should not be confused with series connected short circuit current ratings.

Short Circuit Current Rating

This term is Schneider Electric’s “bottom line” in describing the overall short circuit rating of a motor

control center. It means that the motor control center will withstand and/or interrupt a fault on an

electrical system capable of supplying the specified fault current.

To be properly applied, a motor control center must have a short circuit current rating equal to or greater

than the specified available fault current. In order to obtain this rating, a motor control center must contain:

1. A main device capable of interrupting the specified fault current, located in the motor control center

or in upstream equipment. A short circuit current rating of a motor control center cannot be greater

than the interrupt rating of the main device feeding it.

or:

2. A bus bracing or withstand rating equal to or greater than the specified fault current.

Model 6 Motor Control Centers

Short Circuit Current Ratings Technical Overview

103

07/2009

and:

3. Units with short circuit current ratings equal to or greater than the specified fault current. All units

must either have an interrupt rating greater than or equal to the specified fault current or carry a

series connected short circuit rating greater than or equal to this level.

UL Listed Short Circuit Current Ratings

Underwriters’ Laboratories (UL) has defined test criteria for motor control center short circuit ratings. In

general, UL witnesses the testing of “worst case” configurations of motor control center units,

structures, and bussing at the short circuit current levels for which the equipment is being rated. In

many cases, such as units with circuit breaker disconnects, the same unit must be subjected to those

fault levels more than once. To pass, equipment must withstand and/or interrupt the fault in

accordance with UL criteria. UL Listed short circuit ratings ensure that different manufacturers are

“comparing apples to apples” when describing short circuit current ratings.

“Self-Certified” Short Circuit Current Ratings

Short circuit current ratings that are obtained through first-party testing and/or engineering evaluation,

are certified by the manufacturer, and are not UL Listed are known as “self-certified” ratings.

Self-certified short circuit ratings should not necessarily be considered unacceptable. However,

caution should be used because the basis for the short circuit ratings may differ from one manufacturer

to another.

Main and Branch Feeder Circuit Breakers—Short Circuit Ratings

Breaker Trip

Rating (Amps) Breaker Frame Unit Interrupting Rating (kA)

208/240V 480V 600V

150

HG 65 35 18

HJ 100 65 25

HL 100 100 50

250

JG 65 35 18

JJ 100 65 25

JL 100 100 50

400

LA 42 30 22

LH 65 35 25

LE 100 65 35

600

LI 100 100 100

LX 100 65 35

LXI 100 100 100

800 MJ 65 65 25

1200 PK 65 50 50

PL 100 100 —

3000 RK 65 65 65

RL 100 100 50

Main and Branch Feeder Fusible Switch—Short Circuit Ratings

Maximum Fuse Size

(Amps)

Short Circuit Rating

Class H Class J Class R Class L

30 5 kA 100 kA 100 kA —

60 5 kA 100 kA 100 kA —

100 10 kA 100 kA 100 kA —

200 10 kA 100 kA 100 kA —

400 10 kA 100 kA 100 kA —

600 10 kA 100 kA 100 kA —

2000 — — — 100 kA

Model 6 Motor Control Centers

Technical Overview Short Circuit Current Ratings

104 07/2009

Circuit Breaker Combination Starter with Melting Alloy, Bimetallic, or Solid State Overloads—

Short Circuit Ratings

NEMA Size Breaker Frame Unit Interrupting Rating (kA)

208/240 V 480 V 600 V

1, 2, 3, and 4

HG 65 35 18

HJ 100 65 25

HL 100 100 50

4 and 5

JG 65 35 18

JJ 100 65 25

JL 100 100 50

LA 100 100 50

LH 100 100 50

LC 65 65 50

LE 100 100 50

LI 100 100 100

LX 100 100 50

LXI 100 100 100

LA 100 100 50 1

1Denotes Thermal-Magnetic rating; Magnetic-only is 22 kA.

LH 100 100 50 1

LC 65 65 35

LE 100 100 50

LI 100 100 100

LX 100 100 50

LXI 100 100 100

MJ 65 65 25

PK — — 50

PL 100 100 —

Fusible Switch Combination Starter Units (NEMA/EEMAC) with Melting Alloy, Bimetallic

Thermal, or Solid State Overloads—Short Circuit Ratings

Ratings for all voltages through 600 V.

NEMA Size Short Circuit Rating

Class H Class J Class R

1 10 kA 100 kA 100 kA

2 10 kA 100 kA 100 kA

3 10 kA 100 kA 100 kA

4 10 kA 100 kA 100 kA

5 10 kA 100 kA 100 kA

6 10 kA 100 kA 100 kA

Circuit Breaker or Fusible Switch Compac 6 Application Rated Combination Starter Units and

Bimetallic Thermal Overloads—Short Circuit Ratings

Only use GJL Magnetic Only or Thermal-Mag breakers and Class J fuses

Disconnect Short Circuit Rating

480 V Maximum 600 V Maximum

Circuit breaker 100 kA NA

Fusible switch 100 kA 100 kA

Model 6 Motor Control Centers

Layout Instructions Selection Guide

105

07/2009

Selection Guide

Layout Instructions

The lines between letters represent 3 in. increments.

When planning your

MCC line-up, use this

form. Start at the top

of the leftmost

column, drawing a line

across the column at

the increment mark

where the unit stops,

e.g., a Compac 6,

6 in. unit would take

up spaces A and B.

A line would be drawn

across the column

from B and that unit

designation would be

“A.” The next unit

designation would be

“C,” and so on.)

Example:

Use page 106 to detail

which components

you’ll need to build

your MCC.

Indicate shipping splits

here by filling in the

appropriate triangle(s).

(Maximum of

three sections.)

MCC

Section ____

MCC

Section ____

A 6 in.

(COMPAC 6)

E 12 in.

(Standard Unit)

I 12 in.

(Standard Unit)

C 6 in.

(COMPAC 6)

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

MCC

Section ____

Model 6 Motor Control Centers

Selection Guide Unit Designation Chart for Planning

106 07/2009

Unit Designation Chart for Planning

Section/

Unit

Location

Starter

Class or

Description Size

Trip/

Fuse

Clips

(A)

Rating

Aux.

Intlks.

Control Devices

Other

Nameplate

Identifications

Push

Button Selector

Switches Indicating

Lights

Start-Stop

Fwd-Rev-Stop

Fast-Slow-Stop

Hand-Off-Auto

On-Off

Fwd-Off-Rev

Fast-Off-Slow

Green (Stopped)

Red (Run, Fwd, Fast)

Amber (Rev, Slow)

Push-to-Test

Model 6 Motor Control Centers

General Dimensions

107

07/2009

Dimensions

General

Standard sections contain both a vertical bus system and a vertical wireway. A relay section contains

neither, but does have horizontal power and ground bus for splicing to other sections. A relay section

can be equipped with a relay pan for customer-mounted equipment and devices. Starter units and

main or branch devices that require 72 inches of space are mounted in a relay section.

A transition section is used to splice two different models of Square D® brand MCCs together (see

page 16), turn a corner, or create a back-to-back arrangement (see page 15). Conduit entry is not

recommended in transition sections.

NEMA/EEMAC Type 1, Type 1A (Gasketed), or Type 12 Enclosures

Notes:

All dimensions are shown in inches.

Depths shown indicate actual depth of the structure. Doors and cover plates extend forward 0.06 inches.

Handles and door mounted devices extend forward 2.45 inches or less.

Standard door swing extends forward 15.38 inches for unit doors. On full-section units, 20, 25, or 30 inches is

required for doors.

72" Unit

Mounting

Space

90.00

4.00

12.00

6.00

20.00 1.50

1.56

20-in-wide Section with

Standard Vertical Wireway

72" Unit

Mounting

Space

90.00

9.00

12.00

6.00

25.00 1.50

1.56

25-in-wide Section with

Optional Vertical Wireway

3.00

15" D

Right Side

View

9.10

3.90

3.383.38

15.00

20" D

Right Side

View

9.10

8.90

3.383.38

20.00

Number of Sections

Per Shipping

Assembly Dimension “X”

11.90

25.00

3 10.00

Model 6 Motor Control Centers

Dimensions NEMA/EEMAC Enclosures

108 07/2009

NEMA/EEMAC Type 3R Non-Walk-In Basic Enclosures

31.6 in.

16.5 in.

32.2 in.

Removable lifting angle

Front View

92.9 in. 94.7 in.

26.6 in.

Side View

15 in. Deep Section

27.2 in.

11.5 in.

Side View

20 in. Deep Section

11.3 in.

0.3 in.

Standard Section

Width

20, 25, or 30 in.

Floor Plan

6 in.

Front

26, 31, 36, or 41 in.

Standard Section

Width

20, 25, or 30 in.

Standard Section

Width

20, 25, or 30 in.

Standard

Section

Depth

15 or 20 in.

Individual exterior door

provided over each

vertical section

(single sections).

Combined width of sections, plus 6 in. per shipping split

Model 6 Motor Control Centers

NEMA/EEMAC Enclosures Dimensions

109

07/2009

Bottom Conduit Entry

NOTES:

The dimensions shown are tie-down locations within individual MCC sections. Refer to factory supplied drawings to determine

appropriate anchor locations for the equipment pad.

Depths shown indicate actual depth of the structure. Doors and cover plates extend forward 0.06 in.

Handles and door mounted devices extend forward 2.45 in. or less.

Standard door swing extends forward 15.38 in. for unit doors. On full-section units, 20, 25, or 30 in. is required for doors.

NEMA/EEMAC Type 12 section width is extended to account for gasketing between sections.

Vertical clearance for conduit entry to nearest obstruction is 7 in. minimum, except 20 in. deep sections where ground bus

obstruction is 5 in.

NEMA/EEMAC Type 1, Type 1A (Gasketed), and Type 12 Enclosures—Anchor Locations

NEMA/EEMAC Type 1, Type 1A (Gasketed), and Type 12 Enclosures—Bottom Conduit Entry and Structure Anchoring

Information for Standard and Seismic Installation

Dimension Size (In.) Dimension Size (In.)

Section Depth Section Depth

A15 H20

Available Conduit Entry Available Conduit Entry

B8.24 I13.24

C 17.22 J 17.22

Section Width Anchor Section Width Anchor

20 10

25 15 25 15

30 20 30 20

35 25 35 25

Anchors Anchors

E 5.00 L 5.00

F9.98 M14.98

G 2.50 N 2.50

Ground Bus

O12.85

Seismic Anchor Locations

Standard Anchor Locations

Model 6 Motor Control Centers

Dimensions NEMA/EEMAC Enclosures

110 07/2009

NOTES:

•The dimensions shown are tie-down locations within individual MCC sections. Refer to factory supplied drawings to determine

appropriate anchor locations for the equipment pad.

NEMA/EEMAC Type 3R (Non Walk-in) Enclosure—Anchor Locations

NEMA/EEMAC Type 3R (Non Walk-in) Enclosure—Structure Anchoring Information for Standard and Seismic Installation

Dimension Size (In.) Dimension Size (In.)

Section Depth Section Depth

A15 A20

Section Width Anchor Section Width Anchor

20 10

25 15 25 15

30 20 30 20

35 25 35 25

Anchors Anchors

C 5.00 C 5.00

D 9.98 D 14.98

E 11.60 E 11.60

F 12.50 F 12.50

G 5.00 G 5.00

H 3.60 H 3.60

Enclosure depth is dimension A (15 in.) + E (11.6 in.) = 26.6 in. Enclosure depth is dimension A (20 in.) + E (11.6 in.) = 31.6 in.

B G

A D

Seismic Anchor Locations

Standard Anchor Locations

Additional Conduit Entry Information for NEMA/EEMAC Type 3R Enclosures

Conduit entry

area is the same

as NEMA 1

enclosure.

Standard

section width

20, 25, or 30 in.

Standard

section width

20, 25, or 30 in.

Standard

section width

20, 25, or 30 in.

Floor plan

conduit entry

6 in.

Front 11.3 in.

0.3 in.

Standard

section depth

15 or 20 in.

Combined width of sections plus 6.0 in. per shipping split

Conduit entry

area is the same

as NEMA 1

enclosure.

Conduit entry

area is the same

as NEMA 1

enclosure.

Model 6 Motor Control Centers

NEMA/EEMAC Enclosures Dimensions

111

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Top Conduit Entry

NOTES:

NEMA/EEMAC Type 12 section width is extended to account for gasketing between sections.

Vertical clearance for conduit entry to nearest obstruction is 12 in. minimum.

Control is limited to area within C x D for all top-located mains in standard structure.

NEMA/EEMAC Type 1, Type 1A (Gasketed), and Type 12 Enclosures—Top Conduit Entry Information for Standard and

Seismic Installation

Dimension Size (In.)

Available Conduit Entry

A1.62

B1.39

C4.14

Control Only Width

D20 3.26

25 8.26

Section Width

20 17.22

25 22.22

30 27.22

35 32.22

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Typical Specifications

112 07/2009

Typical Specifications

NOTE: Optional items are shown in bold text enclosed in square brackets. For example, [600 A]

[800 A] [1200 A].

Part 1 General

1.01 Description

This section includes requirements for a motor control center (MCC) and all required control

devices as shown on the drawing and specified to be part of the MCC equipment. The MCC shall

be 480 V, 3-Phase, 3-Wire, 60 Hz unless otherwise indicated (600 V in Canada).

1.02 Submittals

Submit with the delivery of the MCC an Installation and Maintenance Manual and one (1) copy of

the manufacturer's drawings per shipping block.

1.03 Regulatory Requirements

The MCC must conform to Underwriters Laboratories (UL) 845, current revision, CSA, EEMAC,

NEMA ICS-18, the latest version of the National Electrical Code, and the Canadian Electrical Code.

The MCC must be manufactured in an ISO 9001 certified facility.

1.04 Packing/Shipping

The MCC shall be separated into shipping blocks no more than three vertical sections each.

Shipping blocks shall be shipped on their sides to permit easier handling at the job site. Each

shipping block shall include a removable lifting angle, which will allow an easy means of attaching

an overhead crane or other suitable lifting equipment.

1.05 Storage

If the MCC cannot be placed into service reasonably soon after its receipt, store it in a clean, dry,

and ventilated building free from temperature extremes. Acceptable storage temperatures are from

32 °F (0 °C) to 104 °F (40 °C).

1.06 Warranty

The MCC shall be warranted to be free from defects in materials and workmanship for a period of

eighteen (18) months from date of invoice from manufacturer or authorized sales channel.

Part 2 Product

2.01 Manufacturers

A. Shall be Square D® brand or equal.

B. Additions to existing MCCs shall be the same as the original manufacturer.

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2.02 Materials

A. Steel material shall comply with UL 845 and CSA requirements.

B. Each MCC shall consist of one or more vertical sections of heavy gauge steel bolted together to

form a rigid, free-standing assembly. A removable 7 gauge structural steel lifting angle shall be

mounted full width of the MCC shipping block at the top. Removable 7 gauge bottom channel sills

shall be mounted underneath front and rear of the vertical sections and shall extend the full width

of the shipping block. Vertical sections shall be made of welded side-frame assembly formed from

a minimum of 12 gauge steel. Internal reinforcement structural parts shall be of 12 and 14 gauge

steel to provide a strong, rigid assembly. The entire assembly shall be constructed and packaged

to withstand normal stresses in transit and during installation.

2.03 MCC Finish

A. All steel parts shall be provided with UL and CSA listed acrylic/alkyd baked enamel paint finish

or TGIC Powder Coat, except plated parts used for ground connections. All painted parts shall

undergo a multi-stage treatment process, followed by the finishing paint coat.

B. Pre-treatment shall include:

1. Hot alkaline cleaner to remove grease, oil, and other contaminants.

2. Iron phosphate or other approved pretreatment technology to improve adhesion and

corrosion resistance.

C. The paint shall be applied using an electro-deposition process to ensure a uniform paint coat

with high adhesion.

D. The standard paint finish shall be tested to UL 50 per ASTM B117 (5% ASTM salt spray) with no

greater than 0.125 in. (3 mm) loss of paint from a scribed line along with minimal field blisters.

E. Paint color shall be #49 medium light gray per ANSI standard Z55.1-967 (55-65 gloss) on all

surfaces unless specified otherwise. Control station plates and escutcheon plates shall be a

contrasting gray. Unit interior saddles may be painted white for better visibility inside the unit.

2.04 Structures

A. Structures shall be totally enclosed, dead-front, free-standing assemblies. Structures shall be

capable of being bolted together to form a single assembly.

B. The overall height of the MCC shall not exceed 90 in. (2286 mm) (not including base channel or

lifting angle). Base channels of 1.5 in. (38 mm) in height and lifting angles of 3 in. (76 mm) in

height shall be removable. The total width of one section shall be 20 in. (508 mm). (Widths of 25

in. (630 mm), 30 in. (760 mm), and 35 in. (890 mm) can be used for larger devices.)

C. Structures shall be NEMA/EEMAC Type [1 (general purpose)] [1A (gasketed general

purpose)] [12 (industrial duty)] [3R non-walk-in (rainproof)].

D. Each 20 in. (508 mm) wide standard section shall have all the necessary hardware and bussing

for modular plug-on units to be added and moved around. All unused space shall be covered by

hinged blank doors or appropriate cover plate and equipped to accept future units. Vertical bus

openings shall be covered by manual bus shutters.

E. Each section shall include a top plate (single piece or two-piece). NEMA/EEMAC Type 12

enclosures shall also include a bottom plate. Top and bottom plates shall be removable for

ease in cutting conduit entry openings.

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2.05 Wireways

A. Structures shall contain a minimum 12 in. (305 mm) high horizontal wireway at the top of each

section and a minimum 6 in. (152 mm) high horizontal wireway at the bottom of each section.

These wireways shall run the full length of the MCC to allow room for power and control cable

to connect between units in different sections.

B. A full-depth vertical wireway shall be provided in each MCC section that accepts modular

plug-on units. The vertical wireway shall connect with both the top and bottom horizontal

wireway. The vertical wireway shall be 4 in. (102 mm) wide minimum with a separate hinged

door. There should be a minimum of 60 in.2 (387 cm2) of cabling space available for

15-inch-deep sections and 80 in.2 (516 cm2) of cabling space available for 20-inch-deep

sections. Access to the wireways shall not require opening control unit doors. Structures that

house a single, full section control unit are not required to have vertical wireways. Those control

units must open directly into the MCC horizontal wireways.

2.06 Barriers

A. All power bussing and splice connections shall be isolated from the unit compartments and the

wireways. The horizontal bus shall be mounted onto a glass-filled polyester support assembly

that braces the bus against the forces generated during a short circuit. The horizontal bus shall

be isolated from the top horizontal wireway by a two-piece, rigid, non-conductive barrier. The

barrier design shall allow qualified personnel to slide the barriers both left and right, to allow

access to the bus and connections for maintenance without having to remove the barrier.

Barrier sliding shall occur via an upper and lower track system.

B. The vertical bus shall be housed in a molded glass-filled polyester support that provides bus

insulation and braces the bus against the forces generated during a short circuit. These

supports shall have openings every 3 in. (75 mm) for unit stab-on connections. Each opening

shall be provided with a manual shutter to close off the stab opening. These shutters shall be

attached to the structure so that when they are removed (to allow a stab connection), they are

retained in the structure and are readily accessible for use should a plug-on unit be removed

from the MCC.

C. [Barriers shall be provided in the vertical structure and unit designs to prevent the

contact of any energized bus or terminal by a fishtape inserted through the conduit or

wireway areas.]

2.07 Bussing

A. All bussing and connectors shall be [tin-plated aluminum] [tin-plated copper]

[silver-plated copper].

B. The main horizontal bus shall be rated at [600 A] [800 A] [1200 A] [1600 A] [2000 A]

[2500 A (NEMA/EEMAC Type 1 enclosure only)] continuous, and shall extend the full length

of the MCC. Bus ratings shall be based on 149 °F (65 °C) maximum temperature rise in a

104 °F (40 °C) ambient. Provisions shall be provided for splicing additional sections onto either

end of the MCC.

C. The horizontal bus splice bars shall be pre-assembled into a captive bus stack. This bus stack

is installed into the end of the MCC power bus to allow the installation of additional sections.

The main bus splice shall use four bolts, two on each side of the bus split, for each phase.

Additional bolts must not be required when splicing higher amperage bus. The splice bolts shall

secure to self-clenching nuts installed in the bus assembly. It shall be possible to maintain any

bus connection with a single tool.

D. Each section that accepts plug-on units shall be provided with a vertical bus for distributing power

from the main bus to the individual plug-on starter units. This bus shall be copper and plated the

same as the main bus, and shall be rated at [300 A] [600 A] continuous. The vertical bus shall be

connected directly to the horizontal bus stack without the use of risers or other intervening

connectors. It shall be possible to maintain the vertical to horizontal bus connection with a single

tool. “Nut and bolt” bus connections to the power bus shall not be permitted. When a back-to-back

unit arrangement is used, separate vertical bus shall be provided for both the front and rear units.

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E. A [tin-plated copper] [silver-plated copper] ground bus shall be provided that runs the entire

length of the MCC. The ground bus shall be rated for [300 A] [600 A]. A compression lug shall

be provided in the MCC for a 4/0-250 kcmil ground cable. The ground bus shall be provided

with (6) 0.38 in. (10 mm) holes for each vertical section to accept customer-supplied ground

lugs for any loads requiring a ground conductor.

F. Each vertical section shall have a [steel] [copper] vertical ground bus that is connected to the

horizontal ground bus. This vertical ground bus shall be installed so that the plug-on units

engage the ground bus prior to engagement of the power stabs and shall disengage only after

the power stabs are disconnected upon removal of the plug-on unit.

G. The system shall be rated for an available short circuit capacity of [42,000] [65,000] [85,000]

[100,000] rms amperes.

2.08 Typical Unit Construction

A. Units with circuit breaker disconnects through the 400 A frame size, and fusible switch

disconnects through 400 A, shall connect to the vertical bus through a spring-reinforced,

stab-on connector. Units with larger disconnects shall be connected directly to the main

horizontal bus with appropriately sized cable or riser bus.

B. All conducting parts on the line side of the unit disconnect shall be shrouded by a suitable

insulating material to prevent accidental contact with those parts.

C. Unit mounting shelves shall include hanger brackets to support the unit weight during

installation and removal. All plug-on units shall use a twin-handle camming lever located at the

top of the bucket to rack in and rack out the plug-on unit. The cam lever shall work in

conjunction with the hanger brackets to ensure positive stab alignment.

D. A lever handle operating mechanism must be provided on each disconnect. With the unit stabs

engaged onto the vertical phase bus and the unit door closed, the handle mechanism shall

allow complete ON/OFF control of the unit. All circuit breaker operators shall include a separate

TRIPPED position to clearly indicate a circuit breaker trip condition. It shall be possible to reset

a tripped circuit breaker without opening the control unit door. Clear indication of disconnect

status shall be provided by adhering to the following operator handle positions:

1. Handle “ON” position must be up and within 45 degrees of being parallel to the face of the

equipment.

2. Handle “OFF” position must be down and within 45 degrees of being parallel to the face of

the equipment.

3. The minimum separation between the “ON” and “OFF” positions shall be 90 degrees.

4. On circuit breaker disconnects, the “TRIPPED” position of the handle must be perpendicular

to the face of the equipment +/- 30 degrees. Minimum separation between “ON” and

“TRIPPED” shall be 30 degrees. Minimum separation between “TRIPPED” and “OFF” shall

be 45 degrees.

E. A mechanical interlock shall prevent the operator from opening the unit door when the

disconnect is in the ON position. Another mechanical interlock shall prevent the operator from

placing the disconnect in the ON position while the unit door is open. It shall be possible for

authorized personnel to defeat these interlocks.

F. A non-defeatable interlock shall be provided to prevent installing or removing a plug-on unit

unless the disconnect is in the OFF position.

G. The plug-on unit shall have a grounded, stab-on connector that engages the vertical ground

bus prior to, and releases after, the power bus stab-on connectors engage/release.

H. Provisions shall be provided for locking all disconnects in the OFF position with up to three

padlocks.

I. Handle mechanisms shall be located on the left side to encourage operators to stand to the left

of the unit being switched.

J. Unit construction shall combine with the vertical wireway isolation barrier to provide a fully

compartmentalized design.

K. [Surfaces (back, side, and bottom plates) of the unit shall be painted white.]

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2.09 Components for Typical Units

A. Combination Starters

1. All combination starters shall use a unit disconnect as described in specification 2.08.

Magnetic starters shall be furnished in all combination starter units. All starters shall use

NEMA/EEMAC rated contactors. Starters shall be provided with a three-pole, external

manual reset, overload relay for [eutectic melting alloy] [ambient compensated

bimetallic] [solid state] thermal overload units.

2. When provided, control circuit transformers shall include two primary protection fuses and

one secondary fuse (in the non-ground secondary conductor). The transformer shall be

sized to accommodate the contactor(s) and all connected control circuit loads. The

transformer rating shall be fully visible from the front when the unit door is opened.

3. When a unit control circuit transformer is not provided, the disconnect shall include an

electrical interlock for disconnection of externally powered control circuits.

4. Auxiliary control circuit interlocks shall be provided where indicated. Auxiliary interlocks

shall be field convertible to normally open or normally closed operation.

5. NEMA/EEMAC Size 1–4 starters shall be mounted directly adjacent to the vertical wireway

so that power wiring (motor leads) shall connect directly to the starter terminals without the

use of interposing terminals. Larger starters shall be arranged so that power wiring may exit

through the bottom of the starter cubicle without entering the vertical wireway.

B. Terminal Blocks

1. When Type B wiring is specified, all starter units shall be provided with unit control terminal

blocks.

2. Terminal blocks shall be pull-apart type, 250 V, and rated for 10 A. All current carrying parts

shall be tin-plated. Terminals shall be accessible from inside the unit when the unit door is

opened. Terminal blocks shall be DIN rail-mounted with the stationary portion of the block

secured to the unit bottom plate. The stationary portion shall be used for factory connections

and shall remain attached to the unit when removed. The terminals used for field

connections shall face forward so they can be wired without removing the unit or any of its

components.

3. When Type C wiring is specified, all starter units shall be provided with unit control terminal

blocks as described for Type B wiring, along with power terminal blocks for NEMA/EEMAC

Size 1–3 units. An additional set of terminal blocks shall be provided in a terminal

compartment located in each section. These terminal blocks shall be pre-wired to the unit

terminals so that all field control connections can be made at the terminal compartments.

C. Nameplates

When provided, nameplates shall be engraved phenolic with a gray background and white letters.

Total outside dimensions shall be a minimum of 1.5 in. (38 mm) H x 6.25 in. (159 mm) W.

D. Pilot Device Panel

Each combination starter unit shall be provided with a hinged/removable control station plate

that can accommodate up to five 22 mm pilot devices or three 30 mm pilot devices. [The

control station plate can be deleted if no local unit pilot devices are required.]

2.10 Six-Inch Unit Construction

A. Units with circuit breaker disconnects through 250 A frame and fusible switch disconnects

through 100 A shall connect to the vertical bus through a spring-reinforced, stab-on connector.

Stabs on all plug-on units shall be cable connected to the unit disconnect. Six-inch fusible units

shall accept Class J fuses only.

B. All conducting parts on the line side of the unit disconnect shall be shrouded by a suitable

insulating material.

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C. Unit mounting shelves shall include hanger brackets to support the unit weight during

installation and removal. All six-inch plug-on units shall be installable without the assistance of

a camming device so as to allow maximum accessibility with the unit installed.

D. A lever handle operating mechanism must be provided on each disconnect. With the unit stabs

engaged into the vertical phase bus and the unit door closed, the handle mechanism shall allow

complete ON/OFF control of the unit disconnect with clear indication of the disconnects status.

All circuit breaker operators shall include a separate TRIPPED position to clearly indicate a

circuit breaker trip condition. It shall be possible to reset a tripped circuit breaker without

opening the control unit door.

1. A mechanical interlock shall prevent an operator from opening the unit door when the

disconnect is in the ON position. Another mechanical interlock shall prevent an operator

from placing the disconnect in the ON position while the door is open. It shall be possible for

authorized personnel to defeat these interlocks.

2. A non-defeatable interlock shall be provided between the lever handle and the structure to

prevent installing or removing a plug-on unit unless the disconnect is in the OFF position.

The plug-on unit shall have a grounded stab-on connector which engages the vertical

ground bus prior to, and releases after, the power bus stab-on connectors engage/release.

E. Provisions shall be made for locking all disconnects in the OFF position with up to three

padlocks.

F. Handle mechanisms shall be located on the bottom left side of the unit and operate horizontally

to encourage operators to stand to the left of the unit being switched.

G. Unit construction shall combine with the vertical wireway isolation barrier to provide a fully

compartmentalized design.

H. A maximum of twelve six-inch units can be installed per vertical section without placement

restrictions in new or existing applications.

2.11 Components for Six-Inch Units

A. Six-Inch Combination Starters

1. All six-inch combination starters shall use a unit disconnect as described in specification

2.10. All starters shall use [NEMA/EEMAC] [IEC]-rated contactors. Starter units shall be

provided with a 3-pole, external manual reset, overload relay for [eutectic melting alloy

(NEMA rated units only)] [solid state (NEMA rated units only)] [ambient compensated

bi-metallic (application-rated units)] motor overload protection.

2. When provided, control circuit transformers shall include two primary protection fuses and

one secondary fuse (in the non-ground secondary conductor). The transformer shall be

sized to accommodate the contactor(s) and all connected control circuit loads.

3. When a unit control circuit transformer is not provided, the disconnect shall include an

electrical interlock for disconnection of externally powered control circuits.

4. Auxiliary control circuit interlocks shall be provided where indicated. For NEMA rated starters,

auxiliary interlocks shall be field convertible to normally open or normally closed operation.

5. NEMA/EEMAC Size 1 starters shall be mounted directly adjacent to the vertical wireway so

that power wiring (motor leads) will connect directly to the starter terminals.

B. Terminal Blocks for Six-Inch Units

1. All starter units shall be provided with unit control terminal blocks.

2. Terminal blocks shall be pull-apart type, 250 V, and rated for 10 A. All current-carrying parts

shall be tin-plated. Terminals shall be accessible from inside the unit when the unit door is

opened. The stationary portion of the terminal block shall be used for factory connections

and will remain attached to the unit when the portion used for field connections is removed.

The terminals used for field connections shall be accessible so they can be wired without

removing the unit or any of its components.

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C. Nameplates

Nameplates shall be provided for each MCC and unit compartment. They shall be engraved

phenolic with a gray background and white letters. Total outside dimensions shall be a minimum

of 1.5 in. (38 mm) H x 6.25 in. (159 mm) W.

D. Pilot Device Control Panel

Each unit to be provided with a control panel for a maximum of four pilot devices. [Pilot device

control panel can be deleted if no local unit pilot devices are required.] Control panel to be

removable by loosening two semi-captive fasteners for customer access.

2.12 Adjustable Frequency AC Drive Unit Construction

A. The AC drive controller unit shall be a combination disconnect-drive MCC style unit. The input

[circuit breaker] [fusible switch] shall provide NEC required branch circuit protection. The

branch circuit protection shall have an external operator. The adjustable frequency drives shall

be [variable torque] [constant torque] AC drives. Wiring between the AC drive and the

disconnect shall not be disturbed when removing or installing the AC drive controller unit from

the MCC.

B. Units should be of modular construction so that it is possible to readily interchange units of the

same size without modifications to the MCC structure.

C. All conducting parts on the line side of the unit disconnect shall be isolated to prevent

accidental contact with those parts.

D. AC drive controller units up to 50 hp variable torque shall be plug-on units which connect to the

vertical bus through a spring-reinforced, stab-on connector. Units larger than 50 hp variable

torque shall be connected directly to the main horizontal bus with appropriately sized cable or

riser bus.

E. All AC drive controller unit interior mounting panels shall be white for better visibility.

F. A disconnect operator shall be provided per specification 2.08 D.

G. All plug-on AC drive controller units shall have a grounded stab-on connector which engages

the vertical ground bus prior to, and releases after, the power bus stab-on connectors

engage/release.

H. All AC drive controller units shall be provided with unit control terminal blocks for use in

terminating field wiring. Terminal blocks shall be pull-apart type, 250 V, and rated for 10 A. All

current-carrying parts shall be tin-plated. Terminals shall be accessible from inside the unit

when the unit door is opened. The stationary portion of the terminal block shall be used for

factory connections and will remain attached to the unit when the portion used for field

connections is removed. The terminals used for field connections shall be accessible so they

can be wired without removing the unit or any of its components.

I. The AC drive controller unit shall incorporate a self-contained, air-based cooling system. Any air

exhaust vents shall be louvered to help direct air flow away from personnel operating the AC drive

controller unit. Any fans, ductwork, or filters shall be easily accessible for maintenance.

J. The AC drive controller unit cooling system shall be sized to cool the drive regardless of

mounting location within the MCC. The AC drive controller unit shall not be restricted to a

specific location in the MCC.

K. An internal overtemperature trip shall be provided to detect cooling system failure or blockage.

Upon occurrence of an overtemperature trip, the cooling system fans shall continue running to

provide a rapid cool down.

L. Power for the cooling system shall be provided internal to the AC drive controller unit by use of

a control power transformer that includes two primary fuses and one secondary fuse (in the

non-ground secondary conductor).

M. Electrical Ratings

1. The AC drive controller unit shall be designed to operate from an input voltage of [208]

[240] [480] [600] Vac, + or -10%.

2. The AC drive controller unit shall operate from an input voltage frequency range of 57–63 Hz.

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3. The displacement power factor shall not be less than 0.95 lagging under any speed or load

condition.

4. The efficiency of the AC drive at 100% speed and load shall not be less than 96%.

5. The variable torque overtorque capacity shall be 130% for 1 minute. [The constant torque

overtorque capacity shall be 170% for 1 minute.]

6. The output carrier frequency of the AC drive shall be selectable between 1 kHz and 16 kHz,

depending on inverter rating for low noise operation. The output carrier frequency of the AC

drive shall be randomly modulated to avoid resonance.

7. All AC drive controller unit feeder equipment, including conductors, lugs, disconnects,

contactors, etc., shall be sized per NEC Article 430 for the AC drive input current rating. An

impedance range corresponding to a 22,000 to 100,000 A fault availability level shall be

assumed for the input current rating.

N. Protection

1. The AC drive controller unit shall be protected against fault currents up to and including

100,000 A rms symmetrical at 480 Vac and shall be UL 845 listed as verification.

2. Upon power-up, the AC drive shall automatically test for valid operation of memory, option

module, loss of analog reference input, loss of communication, dynamic brake failure, DC to

DC power supply, control power, and the pre-charge circuit.

3. The AC drive controller unit shall be protected against short circuits between output phases,

between output phases and ground, on the internal power supplies, and on the logic and

analog outputs.

4. The AC drive controller unit shall have a minimum AC undervoltage power loss ride-through

of 200 milliseconds (12 cycles). The AC drive shall have the user-defined option of

frequency fold-back to increase the duration of the power-loss ride-through.

5. The AC drive will have a selectable ride-through function which will allow the logic to

maintain control for a minimum of one second (60 cycles) without faulting.

6. For a fault condition other than a ground fault, short circuit, or internal fault, an auto restart

function shall provide restart attempts for a period of 5 minutes and up to an unlimited

amount time depending on setting. The restart attempts shall be separated by increasingly

longer waiting periods to allow the condition to be cleared.

7. The deceleration mode of the AC drive shall be programmable. The stop modes shall

include free-wheel stop, ramp stop, fast stop, and DC injection braking.

8. Upon loss of the analog process follower reference signal, the AC drive shall be

programmable to fault and freewheel stop, ramp stop, fast stop, stop without trip,

automatically restart, run at last speed, or maintain a user-defined low speed setting.

9. The AC drive shall have solid-state I²t protection that is UL Listed, meets UL 508C as a

Class 10 overload protection, and meets IEC 60947. The minimum adjustment range shall

be from 25 to 150% of the nominal current rating of the AC drive controller unit.

10. The AC drive shall have three skip frequency ranges with hysteresis adjustment that can

each be programmed independently, back-to-back, or overlapping.

11. The AC drive shall be include an adjustable thermal alarm which can be assigned to a relay

or logic output to indicate the drive temperature has reached the thermal alarm setting.

O. Adjustment and Configuration

1. The AC drive shall have a user selectable Auto Tune feature. The Auto Tune will

automatically send motor-rated current to the connected motor and store the resulting

resistance data into memory. The AC drive will automatically optimize the operating

characteristics according to the stored data.

2. The AC drive motor and control parameters will be factory preset to operate most common

applications. Necessary adjustments for factory supplied unit operator controls and

sequencing shall be pre-programmed and tested by the manufacturer.

3. A choice of three types of acceleration and deceleration ramps will be available in the AC

drive software—linear, S curve, and U curve—as well as custom.

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4. The acceleration and deceleration ramp times shall be adjustable from 0.01 to 6000

seconds.

5. The volts per frequency ratios shall be user selectable to meet variable torque loads,

normal, and high torque machine applications.

6. The memory shall retain and record run status and fault type of the past eight faults for

operator review.

7. The software shall have an energy saving function that will optimize the energy consumed.

A constant volts/Hz ratio will be maintained during acceleration. The output voltage will then

automatically adjust to meet the torque requirement of the load.

8. Slip compensations shall be a software-enabled function.

9. The AC drive shall offer programmable DC injection braking that will brake the AC motor by

injecting DC current and creating a stationary magnetic pole in the stator. The level of

current will be adjustable between 10–110% of rated current and available from 0.1–30

seconds continuously. For continuous operation after 30 seconds, the current shall be

automatically reduced to 50% of the nameplate current of the motor.

10. Sequencing logic will coordinate the engage and release thresholds and time delays for the

sequencing of the AC drive output, mechanical actuation, and DC injection braking in order

to accomplish smooth starting and stopping of a mechanical process.

P. Graphic Display Terminal Interface

1. The graphic display terminal shall provide 8 lines of 240 by 160 pixels in plain English to

control, adjust, and configure the AC drive including all electrical values, bar charts,

configuration parameters, I/O assignment, application and activity function access, faults,

local control, adjustment storage, self-test, and diagnostics. There will be a standard

selection of six additional languages built in to the operating software as standard.

2. The AC drive model number, torque type, software revision number, horsepower, output

current, motor frequency, and motor voltage shall all be listed on the drive identification

display as viewed on the graphic display terminal.

3. The graphic display shall be able to indicate one, two, or five digital values, or up to two

values by bar graph. As a minimum, the selectable display values shall consist of speed

reference, output frequency, output current, motor torque, output power, output voltage, line

voltage, DC voltage, motor thermal state, drive thermal state, elapsed time, motor speed,

machine speed reference, and machine speed.

4. The graphic display terminal will consist of programmable function keys. The functions will

allow both operating commands and programming options to be preset by the operator.

5. The graphic display terminal shall offer levels of settings from simple start-up to advanced user

menus consisting of parameter setting, I/O map, fault history, and drive configuration. Password

protection shall be available to limit unauthorized access to various levels of the menus.

6. The navigation wheel shall provide the ability to scroll through menus and screens, select or

activate functions, or increase the value of a selected parameter.

7. An escape key shall allow a parameter to return the existing value if adjustment is not required

and the value is displayed. The escape function will also return to a previous menu display.

8. A RUN key and a STOP key shall command normal starting and stopping as programmed

when the AC drive is in keypad control mode. The STOP key shall be active in all control

modes.

9. A [Windows® based personal computer] [serial communication link] [detachable

graphic terminal display] user interface shall be available.

10. The keypad shall store up to four user configuration programs in nonvolatile memory. An

operator shall have the ability to download a stored configuration to multiple AC drives.

11. The operator interface shall be MCC door-mounted on the AC drive controller unit for ease

of access and increased visibility.

12. All door-mounted controls shall be NEMA/EEMAC Type 12 rated.

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Q. Control

1. Pilot devices shall be industrial rated [22mm] [30mm] type control operators and used

independently of the keypad display. Software assignments for control inputs and outputs to

operate factory-supplied controls shall be pre-configured from the factory. The following

basic controls shall be provided:

[HAND-OFF-AUTO selector switch - The HAND mode shall allow manual operation

of start, stop, and speed control. The AC drive shall start when the control

operation is in the HAND mode. A door-mounted, manual-speed potentiometer

shall be used to control speed in the HAND mode. The AC drive shall run at the

low speed setting or higher as required by the position of the manual-speed

potentiometer. This mode shall function as 2-wire control and automatically

restart after a power outage or auto restart after a fault. The OFF position of the

control operation shall stop the AC drive and prevent it from restarting. The AUTO

(automatic) mode shall receive an [auto start contact] [serial link command] to

control starting and stopping of the AC drive. This contact shall also start and

stop bypass (if used) when both the automatic and bypass modes of operation

are selected. Speed control shall be from a customer supplied [4–20 mAdc] [serial

link communication] signal.]

[START-STOP pushbuttons—START/STOP pushbuttons shall provide 3-wire

start/stop control.]

[POWER On pilot light, red]

[FAULT pilot light, yellow, push-to-test]

[RUN pilot light, green, push-to-test]

[STOPPED pilot light, red, push-to-test]

[HAND/AUTO pilot lights, yellow, push-to-test]

NOTE: Additional controls can be found on the equipment electrical diagrams.

2. 2-wire or 3-wire control strategy shall be defined within the software.

3. The control power for the digital inputs and outputs shall be 24 Vdc.

4. The internal power supply incorporates an automatic current fold-back that protects the

internal power supply if incorrectly connected or shorted. The transistor logic outputs shall

be current limited and not be damaged if shorted or if excess current is pulled.

5. All logic connections shall be furnished on pull-apart terminal strips.

6. There will be (2) two software assignable analog inputs with interference filtering. The

analog inputs will be software selectable and consisting of user defined configurations:

x-y mA or x-y V.

7. There will be five software assignable logic inputs that will be selected and assigned in the

software. The selection of assignments shall consist of forward, reverse, jog, plus/minus

speed (2 inputs required), setpoint memory, preset speeds (up to 8 inputs), auto/manual

control, controlled stop, terminal or keypad control, output contactor (2 inputs required),

motor switching, and fault reset.

8. There will be two software assignable analog outputs with interference filtering. The analog

outputs can be selected and assigned in the software. The analog output assignments shall

be proportional to the following motor characteristics: frequency, current, power, torque,

voltage, and thermal state. The output signal will be user-defined configurations:

x-y mA or x-y V.

9. Two voltage-free Form C relay output contacts shall be provided. One of the contacts will

indicate AC drive fault status. The other contact will be user assignable.

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Note to Specification Writer: Items 10 and 11 are optional network communications specifications.

10. [Drives shall include network communication interface for data acquisition only over

[Modbus] [Modbus Plus] [Ethernet (Modbus TCP)] [DeviceNet] [PROFIBUS DP]. Drive

control and speed control via PLC hardwired I/O shall include:]

[PLC Analog output (4–20 mA) speed reference signal]

[PLC Analog input (4–20 mA) speed feedback signal]

[PLC digital output drive start control] [PLC digital outputs for drive preset speed

control]

[PLC digital input drive run (Run =1)]

[PLC digital input drive fault (Fault = 1)]

11. [Drives shall include network communication interface for control and data

acquisition over [Modbus] [Modbus Plus] [Ethernet (Modbus TCP)] [DeviceNet]

[PROFIBUS DP] [Ethernet IP].

[At a minimum, drive units shall allow configuration of these parameters:]

— [Motor Frequency]

— [Motor Voltage]

— [Ramp Profiles]

— [I/O Assignments]

— [Current Limitation]]

[Drive units shall be capable of making these adjustments:]

— [Speed Range]

— [Ramp Time]

— [Thermal Protection]

[Drive units shall allow control of these parameters:]

— [Start/Stop]

—[Braking]

— [Frequency Reference]

— [Fault Resets]

R. Optional Isolation/Bypass Contactors

1. As a UL Listed option, the AC drive controller unit shall include [NEMA rated isolation and

bypass contactors packaged as a separate MCC unit with steel barriers segregating

the AC drive from the bypass starter][IEC rated isolation and bypass contactors

integrated with the AC drive as one MCC unit to reduce space].

2. The isolation and bypass contactors shall be mechanically and electrically interlocked

complete with a Class 10 thermal overload relay, disconnect interlocked with the door, control

circuit transformer, AFC/OFF/BYPASS switch, and BYPASS RUN and AFC RUN lights.

3. The operator shall have full control of the bypass starter by operation of the door-mounted

selector switch.

4. When the drive is supplied with a HAND-OFF-AUTO selector switch, the AUTO mode shall

also control the run/stop of the bypass operation.

S. Optional Harmonic Provisions

1. A harmonic distortion analysis shall be performed and priced as a separate line item by the

AC drive manufacturer based upon system documentation supplied by the contractor. The

documentation shall consist of one-line diagrams, distribution transformer information (kVA,

%Z, and X/R ratio), and emergency standby generator performance specifications. The

harmonic distortion analysis report shall be part of the approval drawing process, submitted

to the engineer for approval. If the calculations determine that harmonic distortion values

are higher than the voltage and current values specified in IEEE 519-1992, the drive

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manufacturer shall provide line reactors of sufficient percent impedance to meet the IEEE

specified values. The line reactor shall be ventilated in the MCC and shall be completely

factory wired and tested with the AC drive controller unit.

2. A [3% impedance] [5% impedance] line reactor shall be provided that is completely

factory wired and tested with the AC drive controller unit.

3. An active harmonic filter shall be provided to perform electronic cancellation of load

produced harmonic currents such that the upstream power harmonic current and voltage

are reduced below the IEEE 519-1992 guidelines for load demand and voltage distortion

limits. Filter shall be Square D® brand Accusine or equivalent. Performance of the filter shall

be independent of the impedance of the power source: AC lines or back-up generator. All

necessary current transducers, reactors, and operator interfaces shall be supplied with the

MCC. A factory certified start-up technician shall be used to start up each harmonic filter to

achieve optimum system performance.

T. Optional Load Filters

As a UL Listed option, the AC drive controller unit shall include a motor protection filter unit

designed to limit peak voltages and reduce electrical stress on the motor insulation. This option

shall be required for motor lead lengths above 150 ft. (50 m). The filter unit shall be ventilated to

limit heat build up within the MCC.

2.13 Solid-State Reduced-Voltage Starter Unit Construction

A. The soft start controller unit shall be a combination disconnect/soft starter, MCC-style unit. The

input [circuit breaker][fusible switch] shall provide NEC required branch circuit protection.

The branch circuit protection shall have an external operator. Wiring between the soft starter

and the disconnect shall not be disturbed when removing or installing the soft start controller

unit from the MCC. Units shall be of modular construction so that units of the same size can be

interchanged without modifications to the MCC structure.

B. All conducting parts on the line side of the unit disconnect shall be isolated to prevent

accidental contact with those parts.

C. Soft start controller units rated for standard duty (up to 156 A) shall be plug-on units which

connect to the vertical bus through a spring-reinforced stab-on connector. Units rated higher

than 156 A shall be connected directly to the main horizontal bus with appropriately sized cable

or riser bus.

D. All soft start controller unit interior mounting panels shall be white for better interior visibility.

E. A disconnect operator shall be provided per specification 2.08 D.

F. All plug-on soft start controller units shall have a grounded stab-on connector which engages

the vertical ground bus prior to, and releases after, the power bus stab-on connectors

engage/release.

G. Handle mechanisms shall be located on the left side to encourage operators to stand to the left

of the unit being switched.

H. All soft start controller units shall be provided with unit control terminal blocks for use in

terminating field wiring. Terminal blocks shall be pull-apart type, 250 V, and rated for 10 A. All

current-carrying parts shall be tin-plated. Terminals shall be accessible from inside the unit

when the unit door is opened. The stationary portion of the terminal block shall be used for

factory connections and will remain attached to the unit when the portion used for field

connections is removed. The terminals used for field connections shall be accessible so they

can be wired without removing the unit or any of its components.

I. The enclosure shall include a door-mounted digital keypad for adjusting the soft start parameters

and viewing the motor, soft start, and fault status without opening the enclosure door.

J. A shorting contactor shall be supplied in each soft start controller unit to reduce temperature rise

within the unit and MCC enclosure. The shorting contactor shall be rated to carry the motor full

load current during steady state after full voltage has been applied to the motor by the soft starter.

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K. Electrical Ratings

1. The soft start controller unit shall be designed to operate from an input voltage between

-10% and +10% of nominal voltage rating.

2. The soft start controller unit shall operate from an input voltage frequency range of +/-5%.

By configuration, it shall be capable of operation at a supply line frequency that can vary by

+/- 20% during steady state operation.

3. The soft starter shall be capable of supplying 400% of rated full load current for 23 seconds

at the maximum ambient temperature.

4. All soft start controller unit power and control devices shall be rated for:

[Standard Duty capable of 10 evenly spaced starts per hour at 400% of full rated

current for 12 seconds per start without tripping.]

[Severe Duty capable of 5 evenly spaced starts per hour at 400% of full rated

current for 25 seconds per start without tripping.]

5. The silicon-controlled rectifiers (SCRs) shall have a minimum peak inverse voltage (PIV)

rating of 1800 Vac. Lower rated SCRs with protection by metal oxide varistors (MOVs) are

not acceptable.

L. Protection

1. A microprocessor-based thermal protection system shall be included that continuously

calculates the temperature rise of the motor and soft starter and provides:

A motor overload pre-alarm that indicates by relay contact or logic output that the motor

windings have exceeded 130% of their rated temperature rise. This function shall be for

alarm only.

A motor overload fault will stop the motor if the windings have exceeded 140% of their

rated temperature rise.

An electronic circuit with a time-constant adjustable to the motor's thermal cooling

time-constant that ensures memorization of the thermal state even if power is removed

from the soft starter.

2. The soft starter shall provide line and motor phase loss, phase reversal, underload, stall,

and jam protection.

3. The soft start controller unit shall include a shorting contactor which closes after full voltage

has been applied to the motor by the soft starter to reduce the current carrying duty on the

SCRs. The integral protective features shall be active even when the shorting contactor is

used to bypass the SCRs during steady state operation.

4. All units and options shall be constructed with protection provisions to pass UL 845 short

circuit testing criteria at a minimum of 65,000 A short circuit current.

5. Diagnostic faults and soft start status shall be displayed on the door-mounted keypad after a

fault condition.

6. The motor must be automatically protected from solid state component failure by one of the

following means:

[Shunt trip coil to trip disconnect in the event of a soft start fault condition,

including a shorted SCR.]

[Isolation contactor that opens when the motor is stopped or when the controller

detects a fault condition including a shorted SCR.]

M. Adjustments and Configurations

1. All programming/configuration devices, display units, and field control wiring terminals shall

be accessible on the front of the control module. Exposure to control circuit boards or

electrical power devices during routine adjustments is prohibited.

2. Digital indication shall provide, as a minimum, the following conditions:

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Soft starter status—ready, starting/stopping, run

Motor status—current, torque, thermal state, power factor, operating time, power in kW

Fault status—motor thermal overload, soft starter thermal fault, loss of line or motor

phase, line frequency fault, low line voltage fault, locked rotor fault, motor underload,

maximum start time exceeded, external fault, serial communication fault, line phase

reversal fault, motor overcurrent fault

3. The starter shall be preset to the following for operation without adjustment in most

applications:

Linear (torque-controlled) acceleration ramp of 15 seconds

Current limitation to 400% of the motor full load current rating

Class 10 overload protection

Motor current preset per NEC / NFPA 70 table 430.150 for standard hp motors

4. A digital keypad shall be used to configure the following operating parameters as required:

Motor full load amps adjustable from 40 to 130% of the controller's rating

Current limitation on starting adjustable from 150 to 700% of the motor current rating,

not to exceed 500% of the soft start rating

Torque ramp adjustable from 1 to 60 seconds

Initial torque adjustable from 10 to 100% of nominal motor torque

Torque limit adjustable from 10 to 200% of nominal motor torque

Maximum start time adjustable from 10 to 999 seconds

Voltage boost adjustable from 50 to 100% of the nominal supply voltage

Selection of freewheel, soft stop, or braking

Linear (torque-controlled) deceleration ramp time adjustable from 1 to 60 seconds

Threshold to change to freewheel following a soft stop from 0 to 100% of the nominal

motor torque

Braking torque level adjustable from 0 to 100% effectiveness

Selection of Class 2, 10, 10A, 15, 20, 25, or 30 motor thermal overload protection

5. A digital keypad shall be used configure the following controller parameters as required:

Selectable automatic reset operation

Cancellation of the torque control loop for multi motor installations

Adjustment of the stator loss estimation for specialty motors

Assignment of soft start inputs and outputs

Activation of phase reversal protection

Reset of motor thermal state

Return to factory parameter settings

Activation of test mode for use with low power motors

Indication of elapsed time in hours of starting, running and stopping

6. Output relays shall provide the following status indications:

One Form A (N.O.) minimum for indication of fault

One Form A (N.O.) for indication that acceleration ramp is complete and current is below

130% motor FLA (end of start)

One Form A (N.O.) assignable to one of the following functions: motor thermal alarm,

motor current level alarm, and motor underload alarm

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7. Additional inputs and outputs shall be available to provide the following status indications:

Two assignable control inputs for the following functions: force to freewheel stop,

external fault input, disable serial link control, external motor overload reset, or general

fault reset

Two assignable logic-level signal outputs for the following functions: motor thermal

overload alarm, “motor powered” signal, motor overcurrent alarm, or motor underload

alarm

One analog output shall be available for 4 to 20 mA indication of motor current, motor

torque, motor power, motor thermal state, or power factor

8. Relay and I/O functions listed above must be isolated with respect to common.

N. Control Options

1. The soft starter's control circuit shall be fed from the line supply and be completely

independent of the power circuit and separate from relay control logic.

2. The peripheral soft starter control circuitry shall be operated from a control power

transformer included within the enclosure.

3. Operator devices shall be door-mounted and shall be (choose all that apply):

Black START and red STOP push buttons

Three position H-O-A switch which provides for manual (HAND) start or remote signal

(AUTO) start from user-supplied relay contacts

Three position FORWARD/OFF/REVERSE selector switch mounted on the door control

island (available with reversing starter only)

Red RUN pilot light illuminated whenever the soft starter is provided a run command and

no fault condition is present

Green OFF pilot light illuminated whenever the soft starter is supplied with control power

and no run command is present

O. Shorting Contactor (Standard On All Units)

1. A microprocessor shall control the operation of the shorting contactor via an output relay.

2. The shorting contactor shall close, shorting the SCRs after the acceleration ramp is

compete and motor current is below 130% of motor FLA, and open on a stop command to

allow a deceleration ramp.

3. Overload protection integral to the soft starter shall continue to protect the motor when

shorting is engaged.

Note to Specification Writer: Item P is optional; delete if not needed.

P. [Full Voltage Emergency Starter]

1. [The soft start controller unit shall include full voltage starting capability to start and

control the motor instead of the reduced voltage soft start method of starting the

motor.]

2. [The full voltage emergency starter shall be UL Listed and shall include [an IEC rated]

[a NEMA Rated] contactor capable of carrying the motor inrush and motor full load

current.]

3. [A door-mounted BYPASS/NORMAL selector switch shall be provided to enable the

user to manually select the motor starting method. NORMAL mode provides a

reduced voltage start using the soft starter. In BYPASS mode, the soft starter will be

left inactive and the motor will be started using an across-the-line full voltage starting

method.]

4. [An overload provision independent of the soft starter shall be provided to protect

the motor in the BYPASS mode.]

5. [The full voltage emergency starter components shall be integrated inside the soft

start controller unit and shall be fully tested by the MCC manufacturer.]

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2.14 General Communication Cabling

A. The MCC shall employ a pre-engineered communication cabling system to interconnect units

within the MCC.

B. Network cabling shall be routed through the lower horizontal wireway to isolate the network

from the horizontal bussing routed through the top.

C. The full-depth vertical wireway serves to separate communications from power cabling to

prevent noise interference on the network cable.

D. The communication cabling installation shall meet Class 2 wiring practices under the provisions

of NEC articles 725 and 800.

E. Provisions for appropriate terminators and grounding shall be provided.

F. Addition, removal, or rearrangement of units shall not interrupt the trunk line and shall not affect

the cabling of other units attached to the trunk line.

G. Cable assemblies will use 5-pole Micro-style connectors with a single keyway and will comply

with SAE-H1738-2 specifications.

H. Connectors are to be epoxy-coated for a 500-hour salt-spray test per Mil-Std 202F.

I. Cable coupler design shall include a vibration-resistant ratchet to prevent loosening.

J. The system will be constructed of molded PVC material.

2.15 Modbus® Communication Cabling

A. The Modbus cabling system will be UL 498 Listed.

B. An extended ground pin shall ensure first make/last break ground connections.

C. The cabling system shall consist of individual trunk line segments in each MCC section. A

trunk/drop topology will be used. Trunk line segments will be routed from the lower wireway into

each vertical section. The trunkline for sections containing plug-on vertical bus shall have six

taps spaced 12 in. apart. Unused tee connectors will be capped at the factory.

D. A 36-in. (915 mm) “pigtail” cable shall connect the communication device in each MCC unit to

the trunk cable via a pre-engineered tap. One end of the pigtail cable will terminate in a

Micro-style connector and will be attached to the trunk. The other end will terminate at the

communication device in the MCC unit.

2.16 Ethernet (Modbus TCP) Communication Cabling

A. The Modbus TCP/IP (Ethernet) communications network shall be configured in a star topology.

B. The cabling system shall consist of multiple, custom-length Ethernet patch cables that each

connect a single network device to a central Ethernet switch unit located in the MCC.

C. Ethernet switches located in the MCC shall be Connexium, Hirschmann, or approved equal.

2.17 DeviceNet™ Communication Cabling

A. The DeviceNet cabling system will be ODVA rated with a trunkline-dropline topology.

B. Control power shall be provided through individual unit transformers that are separate from the

network to reduce network power demand. This will allow devices to operate independently of

the network power supply.

C. Sectioned cabinets shall have six pre-molded trunklines with tees. Full length cabinets shall

have one trunkline with a tee. A tee at the bottom of each section shall provide the means of

connection to the next section with a pre-molded section of cable.

D. A 36-in. (915 mm) “pigtail” cable shall connect the tee in the dropline to the DeviceNet device

located in the MCC unit.

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Typical Specifications

128 07/2009

2.18 CANopen Communication Cabling

A. The CANopen cabling system will be configured in a trunkline-dropline topology.

B. Control power shall be provided through individual unit transformers that are separate from the

network to reduce network power demand. This will allow devices to operate independently of

the network power supply.

C. Sectioned cabinets shall have six pre-molded trunklines with tees. Full length cabinets shall

have one trunkline with a tee. A tee at the bottom of each section shall provide the means of

connection to the next section with a pre-molded section of cable.

D. A 36-in. (915 mm) “pigtail” cable shall connect the tee in the dropline to the CANopen device

located in the MCC unit.

2.19 PROFIBUS DP Communication Cabling

A. The PROFIBUS DP cabling system shall consist of individual trunk line segments in each MCC

section. A trunkline-dropline topology will be used. Trunk line segments will be routed from the

lower wireway into each vertical section. The trunkline for sections containing plug-on vertical bus

shall have six taps spaced 12 in. apart. Unused tee connectors will be capped at the factory.

B. Sectioned cabinets shall have six pre-molded trunklines with tees. Full length cabinets shall

have one trunkline with a tee. A tee at the bottom of each section shall provide the means of

connection to the next section with a pre-molded section of cable.

C. A 36-in. (915 mm) “pigtail” cable shall connect the tee in the dropline to the PROFIBUS DP

device located in the MCC unit.

2.20 Quality Control

A. The entire MCC shall go through a quality inspection before shipment. This inspection will

include:

1. Physical Inspection of:

Structure

Electrical conductors, including:

— Bussing

— General Wiring

—Units

2. Electrical Tests

General electrical tests include:

— Power Circuit Phasing

— Control Circuit Wiring

— Instrument Transformers

— Meters

— Ground Fault System

— Device Electrical Operation

AC dielectric tests shall be performed on the power circuit.

3. Each device shall be configured and addressed to correspond with software settings.

4. A Read/Write test shall be performed prior to shipment on all network devices including, but

not limited to, Overloads, Drives, and Soft Starters.

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5. Testing shall be designed to verify system operation and shall include these verifications as

a minimum:

Drawings and Bill of Materials

I/O addressing

Correct device operation by I/O address

Host Communications

Control Network Interface

6. Markings/Labels include:

Instructional type

Underwriters Laboratory (UL)/Canadian Standards Association (CSA)

Inspector's stamps

7. The manufacturer shall use integral quality control checks throughout the manufacturing

process to ensure that the MCC meets operating specifications.

Part 3 Execution

3.01 Location

A. Motor control centers are not to be placed in hazardous locations. The area chosen shall be

well ventilated and totally free from humidity, dust, and dirt. The temperature of the area shall

be no less than 32 °F (0 °C) and no greater than 104 °F (40 °C). For indoor locations, protection

must be provided to prevent moisture entering the enclosure.

B. Motor control centers shall be located in an area with a minimum of 3 ft. (915 mm) of free space

in front for front-of-board construction. An additional 3 ft. (915 mm) should be allowed in the

rear for back-to-back construction. This free space will give adequate room to remove and

install units. A minimum of 0.5 in. (13 mm) space should be provided between the back of

front-of-board MCCs and a wall. 6 in. (152 mm) is required for damp locations.

C. The MCCs shall be assembled in the factory on a smooth level surface so that all sections are

properly aligned. A similar smooth and level surface shall be provided for installation. An

uneven foundation will cause misalignment of shipping blocks, units, and doors. The surface

under a MCC shall be of a non-combustible material unless bottom plates are installed in each

vertical section.

Model 6 Motor Control Centers

Index

130 07/2009

ABS (American Bureau of Shipping) 9

AC ammeter with current transformer 31

AccuSine® Power Correction System 86

altitude ratings 11

ammeter 31

application-rated Compac™ 6 units

full voltage non-reversing starters 38

full voltage reversing starters 40, 49

non-reversing starters 47

auxiliary electrical interlocks 73

back-to-back section 15

bottom plate 15

branch feeder units 34

circuit breaker 34

fusible switch 35

bus bracing rating 102

bus duct connection 16

bus shutters 15

bussing 14

circuit breaker

branch feeder units 34

main 19

combination starter units 36

full voltage non-reversing starters 36

full voltage reversing starters 39

full voltage reversing vacuum starters 37,

Compac 6 starters 38, 40, 47, 49

control circuit variations 70

corner sections 15

CSA (Canadian Standards Association) 9

current transformer 31

dimensions 107

NEMA/EEMAC Type 1 107

NEMA/EEMAC Type 1 gasketed 107

NEMA/EEMAC Type 12 107

NEMA/EEMAC Type 3R 108

distribution panelboards 90

distribution transformers 88

drip hood 15

EEMAC (Electrical Equipment Manufacturers

Association of Canada) 9

elapsed time meter 31

enclosure types 10

NEMA 1 10

NEMA 1 Gasketed (NEMA 1A) 10

NEMA 12 10

NEMA 3R 10

exterior color 15

fluorescent light 15

full voltage 2-speed 1-winding starters

(consequent pole) 42, 51

full voltage 2-speed 2-winding starters

(separate winding) 43, 51

full voltage 2-speed reversing starters 43, 51

full voltage non-reversing starters 36

full voltage reversing starters 39, 48

full voltage reversing vacuum starters 37, 39,

46, 48

fuse

metering circuit 31

fusible switch

branch feeder units 35

main 24

FVNR starters 36, 46

FVPW starters 42, 50

FVR starters 48

GFI receptacle 15

ground detection lights 31

heat dissipation 11

I-Line® busway 16

IMA TVSS 33

incoming devices 18

four-wire examples 27

IMA TVSS 33

lug ranges 24

main circuit breakers 19

main fusible switches 24

main lug compartments 18

PowerLogic® power meter 29

PowerLogic circuit monitor 28

surge counter 33

integrated equipment rating 102

interrupt rating 102

layout instructions 105

main bus 14

main lug compartments 18

miscellaneous units 86

AccuSine® Power Correction System 86

distribution panelboards 90

distribution transformers 88

PowerLogic Ethernet gateways 94

Model 4 transition section 17

Motor Logic® Plus solid state overload relay

Motor Logic solid state overload relay 75

NEMA (National Electrical Manufacturers

Association) 9

NEMA/EEMAC enclosures 10, 14

NEMA/EEMAC Type 1 enclosure

dimensions 107

NEMA/EEMAC Type 1 gasketed enclosure

dimensions 107

NEMA/EEMAC Type 12 enclosure

dimensions 107

NEMA/EEMAC Type 3R enclosure

dimensions 108

NEMA/EEMAC Wiring Classes 9

Class 1 9

Class 2 9

Type A 9

Type B 9

Type B-D 9

Type B-T 9

Type C 10

overload relays 73

pilot devices 71

pilot lights 72

potential transformer 31

PowerLogic® Ethernet gateways 94

PowerLogic power meter 29

PowerLogic circuit monitor 28

product description 7

pull box 15

rating

bus bracing 102

integrated equipment 102

interrupt 102

self-certified short circuit current 103

series 102

short circuit current 102

UL Listed short circuit current 103

withstand 102

reduced voltage autotransformer starters 41,

rodent barriers 15

RVAT starters 41, 50

selection guide 105

self-certified short circuit current rating 103

series rating 102

shipping weights 10

short circuit current rating 102

self-certified 103

UL Listed 103

short circuit current ratings 102

specifications 112

splice bar 14

Model 6 Motor Control Centers

Index

131

07/2009

starter

2-speed 2-winding 43

combination 36

Compac 6 38, 40, 47, 49

full voltage 2-speed 1-winding 42, 51

full voltage 2-speed 2-winding 51

full voltage 2-speed reversing 43, 51

full voltage 2-step part-winding 42, 50

FVNR 36, 46

FVNR vacuum 37, 46

FVR 48

FVR starters 39

FVR vacuum 39, 48

RVAT 41, 50

wye-delta closed transition 44, 52

wye-delta open transition 45, 52

steel gauge information 13

strip heater 15

structure 14

structure options 15

surge counter 33

switchboard transition 16

technical overview 102

bus bracing rating 102

integrated equipment rating 102

interrupt rating 102

self-certified short circuit current rating

103

series rating 102

short circuit current rating 102

short circuit current ratings 102

UL Listed short circuit current rating 103

withstand rating 102

TeSys® T 74

UL Listed 9

UL Listed short circuit current rating 103

unit options 68

auxiliary electrical interlocks 73

control circuit variations 70

Motor Logic Plus SSOLR 76

Motor Logic SSOLR 75

overload relays 73

pilot devices 71

pilot lights 72

TeSys T 74

vertical bus 14

withstand rating 102

wye-delta closed transition starters 44, 52

wye-delta open transition starters 45, 52

Replaces 8998CT9701R7/02, 11/2003

Schneider Electric

1990 Sandifer Blvd.

Seneca, SC 29678

1-888-SquareD

(1-888-778-2733)

www.schneider-electric.us

19 Waterman Avenue

Toronto, Ontario M4B 1Y2

1-800-565-6699

www.schneider-electric.ca

07/2009

8998CT9701

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