Siemens SB3 User Manual To The B18d5fd6 58b0 424a A5fd C8fc27ed073f

User Manual: Siemens SB3 to the manual

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Page Count: 22

SENTRON™Switchboards

Types SB1, SB2, SB3 and RCIII

instruction

installation

GUIDE

SECTION PAGE

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.1 Qualified Person . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.2 Signal Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.3 Dangerous Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.4 Field Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.5 General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.0 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3.0 Switchboard Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

3.1 Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3.2 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3.3 Shipping Damage Claims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3.4 Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

4.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-10

4.1 Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.2 Foundation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.3 Positioning of Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.4 Anchoring, Leveling and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

4.5 Joining Shipping Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

4.6 Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

4.7 Through Bus Splice Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7

4.8 Ground Bus Splice Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

4.9 Grounding and Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

4.10 Busway Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

4.11 Switchboard Busway Flange Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

4.12 Conduit Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.13 Cable Pulling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.14 Cable Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.15 Cable Lashing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4.16 Control Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.0 Pre-Energizing, Inspection and Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12

5.1 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.2 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

5.3 Ground Fault Protection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12

6.0 Ground Fault Inspection and Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13

6.1 External Ground Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

6.2 Internal Ground Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13

7.0 Energizing and Operation, Switchboard Loading and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-14

7.1 Placing Equipment Into Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

8.0 Switchboard Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

9.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-15

9.1 Inspection and Maintenance Intervals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

9.2 Recommended Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

9.3 Maintenance Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

9.4 Cleaning Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

10.0 Adverse Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

10.1 Ambient Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

10.2 Short Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

10.3 Arcing Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

10.4 Water Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

10.5 Corrosive Atmospheres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

11.0 Informational Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-19

11.1 Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

11.2 Wire Bending Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

11.3 Strap Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

11.4 Ground Fault Test Record - External . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

11.5 Ground Fault Test Record - Internal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

12.0 Service Bulletins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

THESE INSTRUCTIONS DO NOT PURPORT TO COVER ALL DETAILS OR VARIATIONS IN EQUIPMENT, NOR TO PROVIDE FOR EVERY POSSIBLE

CONTINGENCY TO BE MET IN CONJUNCTION WITH INSTALLATION, OPERATION OR MAINTENANCE. SHOULD FURTHER INFORMATION BE

DESIRED OR SHOULD PARTICULAR PROBLEMS ARISE WHICH ARE NOT COVERED SUFFICIENTLY FOR THE PURCHASER’S PURPOSES, THE MATTER

SHOULD BE REFERRED TO THE LOCAL SIEMENS SALES OFFICE. THE CONTENTS OF THIS INSTRUCTION MANUAL SHALL NOT BECOME PART

OF OR MODIFY ANY PRIOR OR EXISTING AGREEMENT, COMMITMENT OR RELATIONSHIP. THE SALES CONTRACT CONTAINS THE ENTIRE

OBLIGATION OF SIEMENS. THE WARRANTY CONTAINED IN THE CONTRACT BETWEEN THE PARTIES IS THE SOLE WARRANTY OF SIEMENS.

ANY STATEMENTS CONTINUED HEREIN DO NOT CREATE NEW WARRANTIES OR MODIFY THE EXISTING WARRANTY.

Contents

SECTION 1.0 - INTRODUCTION

The purpose of this manual is to assist the user in developing

safe and efficient procedures for the installation, maintenance

and operation of the equipment. For additional information,

refer to NEMA Standards Publication PB2.1 “General Instructions

for Proper Handling, Installation, Operation, and Maintenance

of Deadfront Distribution Switchboards rated 600 volts or less”

which is available from the NEMA web site (www.nema.org).

Contact the nearest Siemens representative if any additional

information is required.

Siemens warrants that on the date of shipment all goods

manufactured by Siemens are free of non-conformities in

workmanship and materials. If within one year from date

of initial operation, but not more than eighteen months from

date of shipment by Siemens, of any item of the goods, pur-

chaser discovers that such item was not as warranted above,

and promptly notifies company in writing thereof, company

shall remedy such defect by, at company’s option, adjustment,

repair or replacement of the item and any affected part of the

goods. Refer to “Standard Terms and Conditions of Sale” for

complete warranty terms.

1.1 Qualified Person

For the purpose of this manual a Qualified Person is one who

is familiar with the installation, construction or operation of the

equipment and the hazards involved. In addition, this person

has the following qualifications:

1.1.1. Training and authorization to energize, de-energize, clear,

ground and tag circuits and equipment in accordance with

established safety practices.

1.1.2. Training in the proper care and use of protective equip-

ment such as rubber gloves, hard hat, safety glasses,

face shields, flash clothing, etc., in accordance with

established safety procedures.

1.1.3. Training in rendering first aid.

1.1.4. Knowledgeable of NEC requirements and other

applicable codes, laws and standards

1.2 Signal Words

The signal words “Danger,” “Warning” and “Caution”

used in this manual indicate the degree of hazard that may

be encountered by the user. These words are defined as:

1.2.1. Danger - Indicates an imminently hazardous situation

which, if not avoided, will result in death or serious injury.

1.2.2.

Warning - Indicates a potentially hazardous situation which,

if not avoided, could result in death or serious injury.

1.2.3.

Caution - Indicates a potentially hazardous situation which,

if not avoided may result in minor or moderate injury.

1.3 Dangerous Procedures

In addition to other procedures described in this manual as dan-

gerous, user personnel must adhere to the following warnings:

1.3.1. Danger! High Voltage. Qualified personnel only. Lock

off all power to this equipment before working inside.

Always work on de-energized equipment. Always

de-energize equipment before performing any tests,

maintenance or repair.

1.3.2. Warning! Always perform maintenance on the inter-

rupting device after the closing mechanism(s) are

discharged.

1.3.3. Caution! Always let an interlock device or safety mech-

anism perform its function without forcing or defeating

the device.

1.3.4. Caution! Hydrocarbon spray propellants and hydro-

carbon compounds will cause degradation of certain

plastics. Contact your local Siemens representative

before using these products to clean or lubricate

components during installation or maintenance.

1.4 Field Service

“Siemens Industrial Services” can provide the following support

services for switchboards. Call 1-800-241-4453 to obtain addi-

tional information and schedule an appointment.

• Start-up Commissioning

• Component and System Testing

• Maintenance (Scheduled and Preventative)

• Repair and Refurbishing

• On Site Operational Training

1.5 General Description

Siemens switchboards are designed and manufactured to

perform efficiently under normal operating conditions. The

instructions included in this manual are provided to aid in

obtaining long and economical service from your switchboards.

For proper operation and maintenance, this information should

be distributed to the owner’s operators and engineers.

These instructions cover the standard construction details

of Siemens’ switchboards including auxiliary equipment and

necessary accessories. Any special equipment furnished in

accordance with purchase order requirements are covered

by supplementary instruction books.

The switchboards described in this manual are the dead-

front type as defined in NFPA70 (NEC), UL891 and NEMA

PB2. All parts, conductors, and insulation materials are

designed and constructed to suit the voltage class of

the equipment and are enclosed within grounded metal

enclosures.

The equipment furnished has been designed to operate in a

system having the circuit capacity specified by the purchaser.

If, for any reason, the equipment is later used in a different

system, or if the short-circuit capacity of the system is

increased, the momentary rating of the switchboards, the

interrupting capacity of the protective devices and the bus

capacity must be checked. Should the service be changed,

the equipment must be checked to assure that the short

circuit capacity, amperage and voltage class of the equip-

ment meets or exceeds the requirement of the new system.

Switchboards are free-standing units rated 6000 amperes or

less at 600 volts AC or less. A typical switchboard will contain

the service entrance section with main devices and distribution

sections with branch devices. The sections contain disconnect

devices, protective devices, auxiliary equipment, and any current

Introduction

transformers for metering, control, or ground fault protection.

Devices are applied in a broad range of sizes and mounting

arrangements. Outdoor switchboards consist of indoor equip-

ment enclosed in a weatherproof housing and a door over the

inner front panels.

Section 2.0 - SAFETY PRECAUTIONS

2.1. Only qualified persons familiar with the construction and

operation of switchboards should perform work described

in this set of instructions. Such work should be performed

only after reading this complete set of instructions.

2.2. Follow safety related work practices, as described in NFPA

70E, part II, at all times.

2.3. Hazardous voltages in electrical equipment can cause

severe personal injury or death. Energizing a switchboard

for the first time after initial installation or maintenance is

potentially dangerous. Inspection and maintenance should

be performed on switchboards and equipment to which

power has been cut off, disconnected, and electrically iso-

lated so that no accidental contact can be made with

energized parts.

2.4. Some types of electrical equipment will cause harmonics

in the electrical system which may result in overheating.

Consider this condition when determining switchboard

loading, as possible de-rating of equipment may be

necessary.

Section 3.0 - SWITCHBOARD PREPARATION

3.1 Receiving

Prior to shipment, each switchboard is inspected to ensure

structural and electrical construction is in compliance with

applicable specifications, codes, and standards. Depending

on the size and number of sections, the switchboard is

divided into shipping sections of one or more vertical sec-

tions and placed onto wooden skids. Each shipping section

is packaged, securely blocked and braced for shipment.

Whatever method of shipment, every precaution is taken

to minimize the possibility of damage and to ensure its safe

arrival. Relatively delicate instruments or devices may be included

and the assembly must be handled carefully when unloading.

When the equipment arrives at the destination, the packing

list or marking tag(s) should be checked against the equip-

ment actually received to make sure the shipment is correct

and complete. Claims for shortages or incorrect material must

be made in writing within 30 days after receipt of the shipment

and failure to give such a notice constitutes unqualified accept-

ance and a waiver of all such claims.

On shipments with more than one shipping group, marking tags

are attached to each crate or package for identification. In lieu of

the marking tags, the rating label on each section contains the

section marking. Refer to the general arrangement drawing for

the location of each unit within the group lineup.

3.2 Inspection

Inspect the equipment as soon as possible after receiving for

any damage that may have occurred in transit. Carefully remove

packing to inspect for any possible damage. Retain the packing

material for equipment storage or return shipment if neces-

sary. The switchboard should remain in an upright position

and secured to the shipping skid to prevent distortion of the

bottom frame when moving or handling.

3.3 Shipping Damage Claims

All claims for lost or damaged goods in transit are to be handled

by purchaser directly with the carrier. Notification to carrier within

the 15 day limit on concealed damage is essential if loss resulting

from unsettled claims is to be eliminated or minimized.

3.3.1. When shipment arrives, note whether equipment

is properly protected from the elements. Note trailer

number on which the equipment arrived. Note block-

ing of equipment. During unloading make sure count

agrees with delivery receipt.

3.3.2. Make immediate inspection upon arrival for visible

damage. This should be done prior to unloading when

possible. When total inspection cannot be made on

vehicles prior to unloading, close inspection during

unloading must be maintained and visible damage

noted. Take pictures if possible.

3.3.3. Any visible damage must be noted on the delivery

receipt and acknowledged with the driver’s signature.

The damage should be detailed as much as possible.

It is essential that a notation “Possible internal damage,

subject to inspection” be included on delivery receipt.

3.3.4. If driver will not sign the delivery receipt with damage

noted, the shipment should not be signed for by the

consignee or his agent.

3.3.5. Notify the Siemens Sales Office immediately of any

damage.

3.3.6. Arrange for a carrier inspection of damage immediately.

IMPORTANT: Do not remove equipment from the place

it was set when unloading. Be sure this location is properly

protected to ensure further damage will not occur. Equip-

ment must be inspected by carrier prior to handling after

receipt. This eliminates loss due to claims by carrier that

equipment was damaged or further damaged on site

after unloading.

3.3.7. Be sure equipment is properly protected from any further

damage by covering it properly after unloading. Equip-

ment should be stored in a clean dry place having a

uniform temperature to prevent condensation and

protected from further damage.

Safety Precautions and Switchboard Preparation

DANGER

Hazardous voltage.

Will cause death or serious

injury.

Keep out.

Qualified personnel only.

Disconnect and lock off all power

before working on this equipment.

3.3.8. If practical, make further inspection for possible concealed

damage while carrier inspector is on site. If inspection for

concealed damage is not practical at the time the carrier

is present, it must be done within 15 days of receipt of

equipment. If concealed damage is found, the carrier must

again be notified and inspection made prior to making any

corrective action to repair. Also notify Siemens Sales Office

immediately.

3.3.9. Obtain the original of the carrier inspection report and

forward it along with a copy of the noted delivery receipt

to the Siemens Sales Office. Approval must be obtained

by Siemens from the carrier before any repair work can

be performed. Before approval can be obtained, the docu-

ments requested must be in Siemens’ hands. The carrier

inspection report and/or driver’s signature on the delivery

receipt does not constitute approval to repair.

3.4 Handling

Each switchboard shipping section has provisions for attaching

lifting equipment. The lift points are designed for use with a

crane of adequate height and capacity. To estimate the maxi-

mum required crane capacity, multiply the number of sections

to be lifted by 2,000 pounds.

NOTE: 2,000 LBS IS AN AVERAGE WEIGHT. SOME SECTIONS

MAY HAVE A WEIGHT OF GREATER THAN 2,000 LBS. PLEASE

CALL THE SIEMENS SALES OFFICE TO VERIFY SECTION

WEIGHTS.

Switchboard sections may be moved by crane with lift cables

attached to the lifting bars on the top of the switchboard. If

crane facilities are unavailable, or if tight spaces prevent use

of a crane, rollers under the skids may be used.

Recommended lifting is by means of four cables connected

to an overhead crane or by fork lift.

3.4.1 Lifting By Means Of An Overhead Crane

Single Section Lifting – The cables are connected to the lifting

brackets, mounted at the top front and top rear mounting loca-

tions (See Fig. #1A). A crane with sufficient height should be

used so the load angle (from horizontal) on the lifting cables

will be a minimum of 45 degrees, when viewed from side of

section. The lifting cables must have spreaders from side to

side to prevent twisting the lifting brackets.

Figure 1A

3.4.2 Multi-Section Lifting — The method of lifting a multi-

section unit is similar to lifting single section. The cables need

to be connected to all lifting brackets. The lifting cables must

have correct spreader from side to side (See Fig #1B). A crane

with sufficient height and lift is required.

Figure 1B

3.4.3 Lifting By Means Of A Forklift

Forklift trucks should be used with care as improper lift points

could cause damage to equipment. Balance the load carefully

and use safety straps when handling with a forklift. Jacks may

be used to lift switchboard sections which are properly supported

by sturdy timbers. To prevent distortion of the enclosures, rollers

and cribbing of equal height must be used in sufficient number

to evenly distribute the load.

Figure 2 shows a method of using a forklift on an indoor

switchboard.

Figure 2

For alternate handling means, please refer to the NEMA

Standards Publication PB 2.1.

3.5. Storage

3.5.1 Indoor Switchboards

When switchboard is not to be installed immediately, it should

be unpacked, inspected and stored in a clean dry location having

adequate air circulation and uniform temperature to prevent

condensation. If switchboard is to be stored for any length of

time prior to installation, restore the packing for protection. If

the packing material is removed, cover the switchboard to

protect from dust, debris, and moisture.

Indoor switchboards are neither weatherproof nor drip-proof.

Therefore, it should be stored indoors. If it is to be kept either

outdoors or in a humid, unheated area, provide an adequate

covering to protect against weather and dirt, and place a heat

Switchboard Preparation

Minimum

Front View Side View

source of approximately 250 watts output within each vertical

section to prevent condensation. Space heaters are not standard

equipment on indoor switchboards. Remove any loose packaging

or flammable materials inside the switchboard before energizing

the heat source. Lubricate any moving parts such as hinges,

shutters, etc., if storage is for an extensive period of time.

3.5.2 Storage – Outdoor Switchboards

It is important that outdoor switchboards are stored exactly

as described for indoor switchboards. When it is necessary to

store outdoor switchboards in an area exposed to the weather

or under humid conditions, they should be kept clean and dry

as described above. Energize the self-contained space heaters

(if provided) and make certain that louvers and vents are

uncovered to allow air to circulate and cover shipping splits

to protect from the elements. Refer to wiring diagram drawing

for space heater circuit connections. Lubricate hinges, shutters,

and other moving parts.

Section 4.0 - INSTALLATION

The proper switchboard installation method depends on whether

the units are shipped as one complete group (maximum of 84.0”)

or in two or more shipping sections.The general arrangement

drawing supplied by the factory will indicate the shipping groups

and their respective location within the lineup. Units must be

assembled in accordance with the general arrangement drawing.

4.1. Location

Find the designated area on the building plan where the switch-

board will be installed. If this area is not specified, the location

chosen for installation should provide working clearances com-

plying with article 110.26 of the National Electrical Code (NEC).

Front accessible switchboards require that field connections

including mains, branches, ground, and neutral are accessible

and maintainable from the front. Equipment drawings identify

switchboards that require rear access.

4.2. Foundation Requirements

Extreme care should be taken in layout of foundation or floor.

Refer to general arrangement drawing for exact location of

anchor bolts, area for conduits, other limitations, and instruc-

tions. Foundations must be sufficiently strong to support

the weight of the equipment. Conduit couplings should be

stubbed flush with or below the finished floor level. (Refer to

NEC 408.10) After the equipment has been lowered to the

foundation and set in place, conduit extension sleeves may

be screwed into couplings.

Floors and sills must have a smooth level surface and be in the

same plane. The surface of the foundation must not protrude

above the grouted sills or bed plates at any point. Grouted sills

or bed plates must be set true and level and be in an aligned

position in the same plane to each other over the entire length.

Outdoor equipment is usually installed on a concrete pad with

a level and smooth surface. Outdoor equipment which has been

assembled on formed base plates must be supported at each

section. Adjacent units at each shipping split must be supported

on a single support, and this must be taken into consideration

when the foundation is designed and constructed.

4.3. Positioning of Sections

Positioning and connection of the switchboard sections at the

installation site is done in the following manner.

4.3.1. Space to the front and rear should be sufficient for

opening of doors, insertion and withdrawal of removable

breakers, inspection, and maintenance. Service entrance

equipment should be located as close as possible to

the incoming service of the building.

4.3.2. Clean the mounting surface to remove all dirt and debris.

Start with the left end shipping group and continue in

sequence. Maneuver the section into the desired posi-

tion using procedures described under “Handling.” Use

care in locating sections over conduit areas and beware

of any conduits which stub-up above floor level as these

may block sliding the section in either direction.

4.3.3. Prepare for the connections across shipping splits before

the equipment is moved into final position. Bus supports

and bus joints should be removed using side, rear and

front access options as required. Note the mounting

position and orientation and save hardware for use in

reinstallation.

4.3.4. Remove the shipping skid and stand the section in an

upright position. Remove all packing material and the

bottom floor plate if one is installed in the section. To

protect the bottom channel, any sliding force must be

carefully applied across the bottom 4 inches (100mm)

of the side to fully distribute the sliding force.

4.3.5. All shipping sections must be leveled and aligned to

each other in order to maintain proper alignment of the

horizontal main through bus and splice bus connections.

Bolt all section frames together and connect all through

bus and ground bus at shipping breaks using the splice

plate bus and hardware supplied. Tighten bolted connec-

tions in accordance with torque specifications indicated

on the instruction label supplied.

4.4. Anchoring, Leveling and Assembly

Indoor switchboard shipping groups are held in alignment by

bolts holding the vertical sections to each other. The entire

shipping group is to be anchored and leveled as a single

element without loosening any hardware until entire shipping

group is leveled and anchored. Supporting surfaces for the

switchboard at each anchoring bolt location must be level

and in the same plane. There must not be any projection above

this plane within the area covered by the switchboard cubicles.

Figure 3

Installation

Typical bolt-down hole provisions for cubical bottom, each section.

If the floor or ground sill channels do not meet this require-

ment, it may be necessary to shim in the following manner.

All anchor bolt locations in each cubicle must freely rest in firm

contact with the mounting support surfaces. There must not be

any projection or obstruction in other areas which may distort

the cubicle. Do not force cubicle in firm contact by drawing down

anchoring bolts as such drastic means will distort cubicles. Add 4”

(100mm) square shims adjacent to anchor bolts until firm con-

tact is achieved. Check each anchor bolt location (See Figure 3

and 4).

4.4.1. If side mounted lifting bars are supplied on shipping

sections, it is necessary to remove the lifting bars. If

top mounted lifting brackets are supplied on shipping

sections, removal is optional.

4.4.2. Tighten anchor bolts or weld to sills.

4.4.3. If line-up consists of multiple groups, move the next

group into position, with the rear of units in line and

tight against the adjacent group. Do not bolt groups

together at this time. Check that the cubicles are in

firm contact with the foundation at each corner and

anchor point and that bolt holes are in alignment.

Add square shims as necessary. Tighten the anchor

bolts. Now bolt groups together as described in

”Joining Shipping Sections.”

4.4.4. Repeat Step 3 above until all shipping groups have

been installed securely and in the correct order per

the front elevation drawing supplied from the factory.

Note: For seismic installation, refer to installation instructions

furnished with the equipment.

Figure 4

4.5. Joining Shipping Sections

The front panels and, if possible, the back plates should be

removed so that adjacent shipping section frames can be

bolted firmly together. Place 5/16-16 x 1.00 inch steel bolts

through the holes in each front and rear corner post as

shown in Figure 5. Torque the bolts to 12 ft lbs.

Figure 5

4.6. Electrical Connections

Electrical connections within switchboards are made using

either bus bar or cable. Bus bar is furnished for connections

between the main bus, circuit breakers fusible devices and

pads for cable terminations.

Switchboards are designed to fully comply with standard

electrical clearances. However, since cable and bus con-

nections are being made in the field, care must be taken

to ensure that all minimum clearances are maintained for

electrical connections.

4.7. Through Bus Splice Connections

When a switchboard group is split for shipping purposes, the

cross bus and ground bus connections must be made when

installing the equipment. To make these bolted connections,

refer to Figures 6 through 12 and these instructions:

4.7.1. Access to the main bus from the cable termination area

is achieved by removing the main bus compartment bar-

rier which separates the main bus from the cable area.

For some arrangements, it may be necessary to remove

items between the main bus barriers and the rear of the

unit in order to gain full access. After completion of the

bus assembly and installation, these items should be

reassembled in reverse sequence.

Between live parts 0-125V 126-250V 251-600V

of opposite polarity

Through Air 1/2” 3/4” 1”

Over Surface 3/4” 1 1/4” 2”

Between live parts 0-125V 126-250V 251-600V

and grounded metal

Through Air 1/2” 1/2” 1”

Over Surface 1/2” 1/2” 1”

Installation

Standard Indoor NEMA 1

West Coast Standard Outdoor NEMA 3R

East Coast Standard Outdoor NEMA 3R

Front

4.7.2. All surfaces must be free of dust, dirt or other foreign

material. Do not use any abrasive cleaner on plated con-

tact surfaces. Cleaning is normally not necessary and

should not be done unless parts are badly tarnished. If

cleaning is necessary, use a mild cleaner and thoroughly

remove all residue. Keep cleaning agent off insulation.

4.7.3. Before assembling any bus bar joint, check that the

bar is inserted through bus supports (when required).

Observe the relationship of the bus bar and maintain

this relationship when connecting bus bars. Spacers

may be required in some bus joint connections.

4.7.4. Assemble all joints with the parts dry. Do not use

grease or “no-oxide” product.

4.7.5. Use the hardware provided with the Splice Plate Kit.

Using smaller or different grade hardware may result

in over-heating of the connection.

4.7.6. Single Bolt Connections: Insert the bolt through the

hole on the tie plate and the through bus. Next, place

the large diameter Belleville washer on the 1/2-13 bolt.

Hand tighten the nut and then torque to 50 ft. lbs.

Duplicate for each set.

4.7.7. Four Bolt Connections: Position the (4) ³⁄₈ ,-16 carriage

bolts in the slotted holes in the splice plate and the

through bus. Hand tighten the ³⁄₈ ,-16 belleville washer

nut and then torque to 20 ft lbs. Duplicate for each set.

Older switchboards used Grade 2 hardware. See Hardware Grade Determination

Detail for determining which type of bolt is installed in the gear. Also, refer to the

torque table provided with the gear.

Figure 6 (Typical Bolt Alignment for Tie Plates)

Figure 7 (Splice Plate – Single Hole)

Figure 8 (Straight Tie Plate – Single Hole)

Figure 9 (Angle Tie Plate – Single Hole)

Figure 10 (Straight Tie Plate - Four Hole to Single Hole)

MAX.

HARDWARE GRADE TORQUE

³⁄₈ -16 5 20 FT/LBS

¹⁄² -13 5 50 FT/LBS

¹⁄² -13 2 22FT/LBS

SPLICE PLATES

THRU BUS

WHEN MORE THAN ONE SPLICE PLATE

IS PROVIDED PER PHASE INSTALL ON

EACH SIDE OF THE THRU BUS.

11-A-1021-01 REV. 2

Installation

Carriage

Bolt

Belleville

Washer

Nut

Belleville

Washer

Nut

Carriage

Bolt

Hardware Grade Determinations

Grade 2 Grade 5

Figure 11 (Offset Tie Plate – Four Hole to Single Hole)

Figure 12 (Straight Tie Plate - RCIII Only)

4.8 Ground Bus Splice Connections

Remove ground bus splice plate and rotate the bar into place.

Align and secure the ground bus splice connection between

shipping sections. Refer to Figure 13 for connection. Torque

connections to 6 ft lbs.

NOTE: Proper installation is essential for safe and proper

operation of ground fault protection system (when provided).

Figure 13

4.9. Grounding and Bonding

4.9.1 For grounded systems used as service equipment or as

a main switchboard on a separately derived system,

follow the steps below:

4.9.1.1. Run a grounding electrode conductor from the

grounding electrode at the installation site to the

switchboard grounding electrode conductor ter-

minal. Select the proper material and size the

grounding conductor to comply with sections

250.62, 250.66, and 250.166 of the National

Electric Code (NEC). Install the grounding electrode

conductor as specified in section 250.64(B) of the

National Electric Code (NEC). No ground conduc-

tors are allowed on load side of neutral disconnect

link or ground fault sensor.

4.9.1.2. If required, the main bonding jumper between the

neutral bus and the ground bus will be installed at

the factory. Ensure that the bonding jumper is in

place and properly labeled.

4.9.1.3.It is important that none of the grounding conduc-

tors are connected to load side of any neutral

disconnecting link or any sensor used for ground

fault protection.

4.9.1.4. When the system is a dual fed (double ended) and

has ground fault protection, refer to switchboard

front elevation drawing for proper grounding and

handling.

4.9.2. For ungrounded systems used as service equipment,

or as main switchboard on a separately derived system,

follow the steps below:

4.9.2.1.Run a grounding electrode as described in part

4.9.1.1. above.

4.9.3. If the system is grounded at any point ahead of the

switchboard, the grounded conductor must be run from

that point and connected to the ground bus as described

in paragraph 250.24(B) of the National Electric Code

(NEC). This conductor is required even if the switchboard

supplies only phase to phase loads.

4.9.4. For a switchboard not used as service equipment or as

a main switchboard on a separately derived system:

4.9.4.1.Use equipment grounding conductors sized

according to Table 250.122 of the National

Electric Code to ground the switchboard

frame and ground bus to the service ground,

or by bonding to the raceway enclosing the

main supply conductors in accordance with

sections 250.118 and 250.120 of the National

Electrical Code.

4.10 Busway Connection

Refer to the SENTRON™ Busway Storage, Installation and

Maintenance Instructions Piece No. 31-9918-01 supplied

with the Busway for installation of the busway runs.

4.11 Switchboard Busway Flange Connection

In some cases, the Sentron Busway standard stubs are shipped

to the job site already factory connected to the switchboard.

In applications where the flange stub is not installed from

the factory, refer to the following instructions below:

4.11.1. From inside the switchboards, remove the ³⁄₈ ” bolts

that fasten the switchboard bus to the busway flanges.

4.11.2. Remove the screws from the switchboard that are

around the opening busway cutout.

4.11.3. Insert the busway flange end into the switchboard bus

connectors in the switchboard and align the holes.

NOTE: Top plate is not designed to support weight of

busway. Busway must be supported by other means.

Installation

4.11.4. Insert the ³⁄₈ ” bolts at bus joint and torque to 20 ft lbs.

Tighten bus joint connections, all phases, neutral and

ground bars.

4.11.5. Insert the screws that attached the busway flange to

the switchboard top plate or outer cover.

4.11.6.Verify busway flange phasing with switchboard phasing

(i.e., ABCN, front to rear).

Figure 14

4.12 Conduit Area

All conduits and stubs must be located to avoid cable interference

with structural members and live bus. Deep switchboard frames

may need to have side-to-side frame support removed. Install

conduit properly, with appropriate hubs or sleeves and ring con-

nectors to protect cables and prevent water from entering and

accumulating in the switchboard. Bond all metallic conduit and

stubs to the switchboard with electrical connections sized accord-

ing to 250.122 of the National Electric Code. Before pulling cable,

verify that their size, temperature rating, and conductor insula-

tion comply with the switchboard markings. (Ref NEC 110.14(C)).

NOTES: 1) If bottom plates are furnished, holes for any

conduit entering the bottom of the switchboard must be

made by the customer. After making the holes, reinstall the

bottom plate. 2) Top plate is not designed to support weight

for conduit. Conduit must be supported by other means.

4.13 Cable Pulling

Siemens switchboards are constructed according to NEMA stan-

dards for cable arrangements. It is important that all cables enter

the switchboard in the conduit area shown on the front elevation

drawing and per the instructions shown below:

4.13.1. Use only cable sizes suitable for a proper fit with the

corresponding lugs.

4.13.2. Pull the proper number of line side and load side cables

as per the load served.

4.13.3. Position the cables inside the switchboard so that

they are not subject to physical damage.

4.13.4. Maintain the maximum possible bending radii and proper

clearance to bus bars and grounded parts. If any cables

are lying or bearing on structural members, support them

to relieve this condition or place suitable protective material

at the bearing point to protect the cable insulation.

4.13.5. Where cables enter or leave the switchboard, or pass

through any metal which has magnetic properties, be

certain to run all phase conductors and the neutral

through the same opening. See 300.20 (A) of the

National Electrical Code

4.13.6. Cables entering or exiting the switchboard should be in

the same section in which they are terminated, except

as noted in 408.3 of the National Electrical Code. See

Article 300 of the National Electrical Code for proper

wiring methods.

4.13.7. For Class 2 and Class 3 remote control, signaling and

power-limited circuits separation requirements, see

725.54 of the National Electrical Code.

4.13.8. Conductors of size 1/0 AWG and larger may be run in

parallel. When these conductors are run in parallel they

should be of the same size, length and material to assure

the equal division of current, as required by 310.4 of the

National Electrical Code.

4.14 Cable Termination

4.14.1. Strip a length of insulation from the end of the cable

sufficient to fit into the full length of the lug barrel,

being careful not to nick or ring the strands. Use a

proper insulation stripping tool.

4.14.2. Thoroughly clean aluminum cable contact surfaces

with a wire brush.

4.14.3. Apply an acceptable joint compound to the bare aluminum.

4.14.4. If compression type lugs are furnished on any switch or

circuit breaker, or as the main incoming power lugs, unbolt

and remove them. Insert the cable into the lug barrel and,

using the recommended crimping tool, make the specified

number of crimps. Wipe excess sealant from the connec-

tor and insulation. With the cables connected, remount

the lugs onto the bus bars, switches, or circuit breakers.

Torque the bolts per the chart on page 16.

4.14.5. Set screw type lugs may be furnished as main incoming

lugs and are standard on all devices supplied by Siemens.

Torque values for these lugs are marked on these units.

Torque values for other switchboard lugs are marked on

the switchboard.

4.15 Cable Lashing Requirements

For conductor lashing instructions on switchboards marked

65kA, 100kA or 200kA short circuit current ratings, refer

to the following instructions:

4.15.1. Switchboards with a single fusible main switch rated

4000A or less do not require lashing.

4.15.2. Switchboards with a single main molded case circuit

breaker rated 4000A or less do not require lashing.

When using insulated case SB Circuit Breaker, lashing

is required.

4.15.3. Switchboards with a single main fused circuit breaker

rated 4000A and less do not require lashing.

Installation

4.15.4. Switchboards of single section construction with fusible

disconnects, circuit breakers, or fusible circuit breakers do

not require lashing.

For switchboard sections requiring lashing, refer to the instruc-

tions below:

65kA

100kA

200kA

4.16 Control Wiring

Control wiring is carefully installed and checked at the factory.

Inter-group wiring at shipping splits can be readily connected by

referring to wire markings. These wires are of sufficient length

to be routed to their termination point after cubicles are bolted

together. Terminals for these leads are furnished by others to

suit the available crimping tools. When required, terminal block

hardware is furnished with the switchboard. All wiring diagrams

needed for installation are furnished in advance.

Wires can be easily traced on a wiring diagram furnished for the

switchboard. Each device is illustrated and each terminal on each

device is identified. The wire list adjacent to each device on the

diagram indicates the device and terminal number to which each

wire is connected at the next connection point.

All control wiring installed by the factory is neatly bundled and

secured to the cubicle side plate or wiring pan. Make all field

connections in a similar manner. Check that all parts and com-

ponents clear any additional wiring installed. All field wiring is

to be routed behind the cable retainer which is removable for

installation purposes. Use plastic or nylon ties to secure all field

installed wire to the cubicle structure.

SECTION 5.0 - PRE-ENERGIZING, INSPECTION AND TESTING

Before the equipment is energized, it must be thoroughly inspect-

ed and tested. Correct any deviations and re-inspect equipment

before energizing.

“Siemens Industrial Services” can provide the following support

services for switchboards. Call 1-800-241-4453 to obtain addi-

tional information and schedule an appointment.

• Start-up Commissioning

• Component and System Testing

• Maintenance (Scheduled and Preventative)

• Repair and Refurbishing

• On Site Operational Training

5.1 Inspection

Check the following points:

5.1.1. Visually inspect switchboard for any damage that may

have affected bus bar supports, device mountings or

reduced electrical clearances within the switchboard

(minimum clearance values are listed on Page 6).

5.1.2. Electrical disconnecting contacts, machine parts,

shutter, etc., checked for lubrication and operation.

5.1.3. Blocking, supports and other temporary ties removed

from breakers, instruments, relays, etc.

5.1.4. Check torque of all bus bar connections, including fac-

tory and field installed connections. (Torque values are

listed on Page 16.)

5.1.5. Proper fuses correctly installed.

5.1.6. Manually operate all devices (circuit breakers, switches,

etc.) Check for alignment and proper operation.

5.1.7. Operate all electrically operated devices (circuit break-

ers, switches, meters, relays, etc.). An auxiliary power

source may be required.

5.1.8. Temporary wiring jumpers (used on the secondaries of

current transformers tied to external devices, as shown

on wiring diagrams) removed.

5.1.9. Check current transformer shorting terminal block

screw position.

Pre-Energizing, Inspection and Testing

Lashing Instructions to 65,000A Maximum

To comply with UL short circuit withstand ratings the

adjacent Ø & N connections shall be lashed per the

instructions provided below.

Wrap line cables together with nominal 3/8”nylon rope

or rope having a minimum tensile strength of 2000 pounds.

From switchboard entrance to the point that the cables lace

together, wrap each run of cable with 1 turn every 3 inches.

Where cables lace into terminals,support must be added to

the cables per the diagram.This should be installed 6”from the

terminals and every 12” beyond that point.

Crimp Connectors - Referto instructions on connector forprop-

er crimping tool and quantity of crimps required.The lashing

shall be as described above.

11-1000-01 REV. 7

Lashing Instructions to 100,000A Maximum

To comply with UL short circuit withstand ratings the adjacent Ø

& N connections shall be lashed per the instructions pro-vided

below.

Wrap line cables together with nominal 3/8”nylon rope or

rope having a minimum tensile strength of 2000 pounds.From

switchboard entrance to the point that the cables lace together,

wrap each run of cable with 1 turn every 3 inches.Where cables

lace into terminals, support must be added to the cables perthe

diagram.This should be installed 6”from the terminals and every

9”beyond that point.

Crimp Connectors - Referto instructions on connector for

propercrimping tool and quantity of crimps required.The

lashing shall be as described above.

11-1001-01 REV. 6

Lashing Instructions to 200,000A Maximum

To comply with UL short circuit withstand ratings the adjacent

Ø & N connections shall be lashed per the instructions

provided below.

Crimp Connectors - Referto instructions on connector forproper

crimping tool and quantity of crimps required.Wrap line cables

together with nominal 1/2”nylon rope orrope having a minimum

tensile strength of 3000 pounds.Where cables lace into line

terminals support must be added to cable per the diagram

provided.This should be installed every 6”from line terminals

and every 6”above that point.

Note: Cable support must be re-installed over lug barrels after

cable termination.

11-1006-01 REV. 3

Cable Support Supplied by Siemens

5.1.10. All protective devices and relays are shipped from the

factory with all adjustable settings configured at the

lowest possible values. Adjustments based on required

system coordination study must be done by the end

user. Siemens Technical Services can be contracted to

perform

the system coordination study and system

commissioning.

5.1.11. Make sure ground connections properly made.

5.1.12. Make sure incoming primary and secondary connections

properly made and checked for shorts or undesired

grounds.

5.1.13. Make sure all equipment which has been removed

during assembly has been replaced.

5.1.14. Confirm that interlocks performing properly.

5.1.15. Disconnect devices checked per instruction books.

5.1.16. Make sure any filters in vent areas are clean and free of

foreign material.

5.1.17. Inspect and remove any tools or objects left inside

the equipment.

5.1.18. Make sure all covers are installed. Close doors and

ensure that all conductors are not pinched or nicked.

5.2 Testing

5.2.1. A megger test should be performed to ensure that all

connections made in the field are properly insulated.

Test from phase to phase, phase to ground, phase to

neutral, and neutral to ground with the neutral isolated

from ground and all overcurrent devices in the open

position. See NEMA PB2.1, Section 7.6. Resistance

readings of 1 Megohm or greater are preferred. If low

readings are observed and an investigation for possible

corrections does not correct test readings, then contact

your Siemens Sales Office for assistance.

5.2.2. A dielectric test should be made on the circuit for one

minute at twice the rated voltage plus 1,000 volts corre-

sponding to the rated volt of the equipment.

5.2.3 Voltage transformers, control power transformers, surge

arresters, and surge capacitors must be disconnected

during these test.

NOTE: The dielectric test voltage is given as a reference only for

those using dielectric tests to verify the integrity of connected

cable installations without disconnecting the cables from the

switchboard. It represents values believed to be appropriate

and approximately equivalent to the corresponding power fre-

quency withstand test values specified for each voltage rating

of switchboard. When performing dielectric tests, the voltage

should be raised to the test value in discrete steps and held for

a period of one minute.

In accordance with ANSI C37.20.02 Clause 5.5, Field Dielectric

Tests are also recommended when new units are added to

an existing installation, or after major field modifications. The

equipment should be put in good condition prior to the field

test. It is not expected that equipment shall be subjected to

these tests after it has been stored for long periods of time

or has accumulated a large amount of dust, moisture, or other

contaminants without being first restored to good condition.

5.3 Ground Fault Protection System

NEC Section 230.95 requires ground fault protection on all serv-

ice disconnects rated 1000 amperes and larger in switchboards

when fed by a solidly grounded wye system of more than 150

volts to ground. When provided, all ground fault protection

equipment for the switchboard is tested before shipment from

the factory. The ground fault protection system, when provided,

must be tested when first installed in accordance with NEC

Section 230.95 paragraph C .

There is an exception to this rule: Ground fault protection is not

required on fire pumps or continuous industrial loads where a

non-orderly shutdown would cause a hazard.

Health care facilities, such as hospitals require additional levels of

ground fault protection. These requirements are described in NEC

article 517.

Sections 215.10 and 240.13 of the NEC require ground fault pro-

tection on all 1000 ampere and larger devices, breakers, and

switches, applied in a system as described above, unless there is

ground fault protection upstream.

Many utilities use a grounded Wye secondary transformer and

bring a connection from the grounded mid-point to the

service section ground bar. When this is the case, ground fault

protection is required.

Pre-Energizing, Inspection and Testing

THIS CIRCUIT PROTECTED

BY GROUND FAULT PROTECTION

11-1004-01 Rev. 3

DANGER

Hazardous voltage.

Will cause death or serious

injury.

Keep out.

Qualified personnel only.

Disconnect and lock off all power

before working on this equipment.

For a 1000 ampere or larger 480 volt, 3-phase 3-wire service sec-

tion, an inquiry should be made to determine if the utility is using

a 3-wire delta secondary transformer. Should this be the case, no

ground fault protection is required.

Figure 15

WARNING: The following should be performed only by qualified

personnel as defined in NEC article 100. The ground fault sensor

(GFS), ground fault relay (GFR), must be installed as in Figure 15.

Note: Test report and test record forms found on Page 18

and 19 of this manual can be used to record ground fault

field testing.

6.0 GROUND FAULT INSPECTION AND TESTING

“Siemens Industrial Services” can provide the following support

services for switchboards. Call 1-800-241-4453 to obtain addi-

tional information and schedule an appointment.

• Start-up Commissioning

• Component and System Testing

• Maintenance (Scheduled and Preventative)

• Repair and Refurbishing

• On Site Operational Training

6.1 External Ground Fault

6.1.1. Disconnect Main Power Source.

6.1.2. Remove the neutral disconnect link. Make sure

the neutral is grounded only by the main bonding

jumper, which must be on the line side of the sensor.

6.1.3. Close all branch devices.

6.1.4. Using a “megger” type meter, measure the resistance

of the load phase and neutral to ground. This is to ensure

that no ground connections exist in the system. Resistance

readings of one (1) Megohm or greater are preferred.

6.1.5. Re-install the neutral disconnect link.

6.1.6. Open all devices.

6.1.7. Connect the main power source.

To test the entire system including the disconnect device.

• Check for control power (LED should be illuminated).

• Press the “push to test” switch on the relay.

• The trip indicator should go to the “trip” position and the

disconnect device will open.

• Release the “push to test” switch on the relay.

• Reset the relay, and the disconnect device. System is

now back to normal.

To test the ground fault relay and sensor only (the sensor

will trip the relay in this test).

• Check for control power, “LED” should be illuminated.

• Press and hold the “shunt trip bypass” switch on the relay.

• Press the “push to test” switch. The ground fault relay will trip.

• Reset the relay, then release the “shunt trip bypass” switch.

System is now back to normal.

Note: Test Report form found on page 19 of this manual can

be used to record ground fault field testing.

6.2 Internal Ground Fault

The procedures below are for SJD6, SHJD6, SCJD6, SLD6, SHLD6,

SCLD6, SMD6, SHMD6, SCMD6, SND6, SHND6, SCND6, SPD6,

SHPD6, STD6, SHTD6, SBA, and SB4 breakers.

6.2.1 General

Siemens Sensitrip III and SB circuit breakers may be equipped

with integral ground fault protection. These devices are usually

identified by a “G” in the trip unit catalog number and the pres-

ence of the ground fault adjustments. The National Electrical

Code® requires that these devices be performance tested when

first installed (230.95(C). These instructions are intended to

guide the installer in meeting this requirement.

General Instructions

6.2.1.1. The interconnected system shall be evaluated when

initially installed by qualified personnel. It is also sug-

gested this be done periodically thereafter.

6.2.1.2. The proper location of the sensors around the bus of the

circuit to be protected shall be determined. This can be

done visually, with knowledge of which bus is involved.

6.2.1.3. The grounding points of the system shall be verified to

determine that ground paths do not exist that would

bypass the sensors.

6.2.1.4. The polarity of the sensor connections must agree with

the installation instructions to avoid improper operation.

Ground Fault Inspection and Testing

Disconnect

Device

Main Bonding

Jumper

Neutral Disconnect

Link No grounds permitted

downstream from

bonding jumper

neutral, if used

From Sensor

To Control Power Source

Load

Main Power Source

Ground

Fault

Relay (GFR)

Shunt

Trip

Device

To GFR To GFR

#2 #1

Fig. #1

Sensor (GFS)

Ground Fault Configuration

GFS #1, is the standard location

GFS #2, alternate location for GFS

Ground Fault Relay

6.2.1.5. A simulated test is to be done using a low voltage, high

current source. This test is not intended to verify the cali-

bration of the ground fault protection but to verify it is

properly functioning.

6.2.1.6. The results of this testing should be recorded on the

form provided at the end of this document or on other

appropri

ate forms and should be available to the inspec-

tion authority.

6.2.1.7. These breakers may be set for different modes of oper-

ation. Residual or Ground Return, as described in the

instructions supplied with the circuit breaker. For further

information on applications, refer to the NEMA standards

publication No. PB 2.2 Application Guide for Ground

Fault Protective Devices for Equipment.

6.2.1.8. Operation Test

Switch Setting - Residual Outgoing Circuit Method

6.2.1.8.1. 3 Phase / 3 Wire

Using Figure 16, individually test breaker

poles A, B and C for proper Ground Fault

operation.

Each of the circuit breaker’s front panel controls should be set

to the highest setting. Using a low-voltage current source, apply

a test current equal to 125 percent of the ground fault pickup

setting to one pole of the circuit breaker. The circuit breaker

must trip.

Figure 16

Warning: NEVER pass test current through an unterminated

Neutral Sensor. Permanent sensor damage may occur if operated

in this manner.

6.2.1.8.2. 3 Phase/4 Wire

Using Figure 16, individually test breaker poles A, B and C

in conjunction with the proper Neutral Sensor for proper

Ground Fault operation.

Each of the circuit breaker’s front panel controls should be

set to the highest setting. Using a low-voltage current source,

apply 125 percent of the ground fault setting to one pole of the

circuit breaker. The circuit breaker must not trip. Reduce the test

current to zero.

Using a suitable means, short the X1/wire and X2/wire connec-

tions together on the Neutral Sensor. Re-apply the 125 percent

test current to the breaker pole under test. The breaker must trip.

Reduce the test current to ZERO and remove the shorting means

from the Neutral Sensor.

6.1.2.9. GF Switch Setting - Ground Return

Ground Return Method

6.1.2.9.1. 3 Phase/3 Wire or 3 Phase/4 Wire

Each of the circuit breaker’s front panel controls should

be set to the highest setting. Using a low-voltage cur-

rent source, apply a current equal to 125 percent of

the ground fault pickup setting per Figure 17. The

circuit breaker must trip.

Figure 17

Note: Test report form found on page 18 can be used to record

ground fault field testing.

FAILURE TO PROPERLY MAINTAIN EQUIPMENT CAN RESULT IN

DEATH, SERIOUS INJURY OR PRODUCT FAILURE. THE INSTRUC-

TIONS CONTAINED HEREIN SHOULD BE CAREFULLY REVIEWED,

UNDERSTOOD AND FOLLOWED. THE FOLLOWING MAINTENANCE

PROCEDURES MUST BE PERFORMED REGULARLY.

SECTION 7.0 - ENERGIZING AND OPERATION

WARNING. HAZARDOUS VOLTAGES IN ELECTRICAL EQUIP-

MENT CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.

ENERGIZING A SWITCHBOARD FOR THE FIRST TIME AFTER

INITIAL INSTALLATION OR MAINTENANCE IS POTENTIALLY

DANGEROUS.

7.1 Placing Equipment Into Service

Only qualified personnel should place equipment into service.

Proceed as follows:

7.1.1. Check all interrupting devices. Set all devices to open

position. Check and open all control circuits.

7.1.2. Energize primary incoming power source to equipment.

Note: The primary incoming power source should not

exceed the normal rating of equipment.

Energizing and Operation

Refer to breaker instructions

for correct neutral sensor

wiring terminations.

DANGER

Hazardous voltage.

Will cause death or serious

injury.

Keep out.

Qualified personnel only.

Disconnect and lock off all power

before working on this equipment.

Switchboard Loading and Maintenance

7.1.3. Close control circuit to check all instruments, relays,

meters, etc., during this time. Note: There should be

no load on switchboard when it is energized.

7.1.4. Energize in sequence starting at the source and work

towards the load. Close main device, then feeder

devices, then branch devices to source load. As the

smallest branch load is added, observe instruments.

Allow several minutes before connecting additional load.

7.1.5. Gradually connect more loads to equipment. Observe

instruments and allow several minutes before adding

additional load. Follow this procedure until the full load

is connected.

7.1.6. After all mains and branch devices have been closed,

down stream loads such as lighting load, contactors,

heaters, and motors may be turned on.

7.1.7. Check primary and secondary circuits for overheating.

Also check all instruments during the first week of

operation.

SECTION 8.0 - SWITCHBOARD LOADING

8.0.1. Main Lug Switchboards (without main).

The total continuous load current through the supply bus

should not exceed the current rating of the switchboard.

8.0.2. Single Main Switchboards

The total continuous load current on main device should

not exceed 80 percent of main device unless rated for

100 percent of its ampere rating. The same will apply to

each main of a multi-main switchboard. Feeders and

branch circuits follow same 80 percent rule for load

applied to feeder and branch circuit.

8.0.3. Some types of electrical equipment will cause harmon-

ics in electrical systems. This may result in overheating.

When determining loading of switchboard, this condition

should be considered. Possible de-rating of equipment

may be necessary.

SECTION 9.0 - MAINTENANCE

FAILURE TO PROPERLY MAINTAIN EQUIPMENT CAN RESULT IN

DEATH, SERIOUS INJURY OR PRODUCT FAILURE. THE INSTRUC-

TIONS CONTAINED HEREIN SHOULD BE CAREFULLY REVIEWED,

UNDERSTOOD AND FOLLOWED. THE FOLLOWING MAINTENANCE

PROCEDURES MUST BE PERFORMED REGULARLY.

9.1 Inspection and Maintenance Intervals

Periodic inspections and maintenance are essential to obtain

safe and reliable operation. When equipment is operated under

“Usual Service Conditions,” maintenance and lubrication is

recommended at least annually. Generally, “usual service condi-

tions” are defined as an environment in which the equipment is

not exposed to excessive dust, acid fumes, damaging chemicals,

salt air, rapid or frequent changes in temperature, vibration, high

humidity, and extremes of temperature. Where equipment is

exposed to these conditions, more frequent maintenance is

recommended.

For the safety of maintenance personnel, as well as others who

might be exposed to hazards associated with maintenance

activities, the safety related work practices of NFPA 70E, parts II

and III and other recognized safety practices such as those con-

tained in the National Electric Code and OSHA should always be

followed when working on electrical equipment. Maintenance

personnel should be trained in the safety practices, procedures

and requirements that pertain to their respective job assignments.

This manual should be reviewed and retained in a location readily

accessible for reference during maintenance of this equipment.

The user must establish a periodic maintenance program to

ensure trouble-free and safe operation. The frequency of inspec-

tion, periodic cleaning and preventative maintenance schedule

will depend upon the operating conditions. NFPA Publication

70B, “Electrical Equipment Maintenance” may be used as a

guide to establish such a program.

A preventative maintenance program is not intended to

cover reconditioning or major repair, but should be designed

to reveal, if possible, the need for such actions in time to pre-

vent malfunctions during operation.

9.2 Recommended Maintenance

Periodic maintenance includes cleaning, lubrication and the

exercising of component parts. The interval between mainte-

nance checks can vary depending on the amount of usage

and environmental conditions of each installation.

The maximum recommended inspection interval should not

exceed one year and should include all the tests shown in

the section below, “Maintenance Tasks.”

Always inspect the switchboard after a fault (see section 10.0

on “Adverse Conditions”). Instruction manuals for the various

disconnecting and overcurrent devices mounted in the switch-

board are indicated in the “Supplemental Instruction Manuals”

section and are available through your local Siemens sales office.

A permanent record of all maintenance work should be kept.

The record should include a list of periodic checks and tests

made, the date they were made, the condition of the equip-

ment, and any repairs or adjustments that were performed.

9.3 Maintenance Tasks

9.3.1. Before any maintenance is performed on a switch-

board that has been energized for at least 3 hours,

it is recommended, just prior to inspection, a simple

hand test be performed. This test should consist

DANGER

Hazardous voltage.

Will cause death or serious

injury.

Keep out.

Qualified personnel only.

Disconnect and lock off all power

before working on this equipment.

of placing your hand on the front and side of the

equipment enclosure, the deadfront surfaces of

circuit breakers, switches, interior trims, doors for

at least 3 seconds. If you cannot maintain contact

with the surfaces due to the extreme temperatures,

this may be an indication of trouble and immediate

investigation is required.

Warning: Switchboards contain voltages that may

cause severe injury or death. Power to the switch

board should be turned off, disconnected and elec-

trically isolated so that accidental contact cannot

be made with energized parts during inspection

and maintenance, unless otherwise specified.

9.3.2. Before starting work on the equipment, the following

should be completed on any equipment that will affect

the area of the work:

Disable remote control and automatic transfer schemes.

B. De-energize all direct and back feed power and control

sources, test and ground

Disconnect all voltage and control power transformers.

D. Open all disconnects.

9.3.3. Include the following items in your procedure:

A. Check general condition of switchboard installation.

B. Inspect interior for accumulation of dust, dirt or any

foreign matter. Vacuum the interior to remove any dirt

or dust deposits. Do not use an air hose as pressurized

air may blow dust into critical electrical contact areas.

C. Check the interior carefully for moisture, condensation

buildup, or signs of any previous wetness. Inspect all

conduit entrances and cracks and seal off any leaks to

eliminate moisture. Clean air filters by washing in a mild

household detergent.

D. Examine indicating lamps and replace as required.

E. Check terminal blocks contacts for loose connections.

F. Check instrument and control switches and inspect

their contacts.

Check for proper condition of instrument transformers.

Replace burned out fuses, if any. Check primary and

secondary connections.

H. Remove dust from all de-energized insulators.

I. Inspect bus bars and connections for proper condition.

If bus bars are overheating, check for poor or loose con

nections or for overload.

J. Examine fuse clip contact pressure and contact means.

If signs of over-heating or looseness, contact sales for

replacement.

K. Look for and replace deteriorated insulated material

where sealing compound has melted.

L. Examine all safety interlocks to insure they are func-

tional and in proper working order.

M. Carefully inspect all devices for any worn, cracked, or

missing parts. Manually open and close devices sev-

eral times to insure they are in proper working order.

Perform maintenance of interrupting devices as out

lined in the device instruction manual. Do not open

sealed breaker or trip unit as calibration may be dis-

turbed. Return to factory for any replacement. For

reference, see NEMA AB4-2000.

N. Check space heaters and thermostat (if equipped) for

proper operation.

O. Maintain other auxiliary equipment per their respec-

tive instruction book requirements.

P. Lubricate mechanisms, contacts, and other moving

components. Do not lubricate parts of molded case

circuit breakers.

Q. Inspect painted surfaces and touch up as needed.

R. Check for signs of rodent or insect nesting inside the

switchboard.

S. Replace, reassemble, re-insulate, return all items to

proper operating conditions and remove grounds

prior to energization.

T. Ensure satisfactory operation of relays and instru-

ments as per instruction books furnished separately.

Do not leave device covers off longer than necessary.

When a cover has been broken, cover the device

temporarily and replace broken glass as soon as

possible.

U. Test ground fault protection system (if furnished).

V. Conduct an electrical insulation resistance test to

ensure that the switchboard is free of short circuit

and ground.

9.3.4.THIS CHECKLIST DOES NOT REPRESENT AN EXHAUSTIVE

SURVEY OF MAINTENANCE STEPS NECESSARY TO ENSURE

SAFE OPERATION OF THE EQUIPMENT. PARTICULAR APPLI-

CATIONS MAY REQUIRE FURTHER PROCEDURES. SHOULD

FURTHER PROCEDURES BE DESIRED OR SHOULD PARTICULAR

PROBLEMS ARISE WHICH ARE NOT COVERED SUFFICIENTLY

FOR THE PURCHASER'S PURPOSES, THE MATTER SHOULD

BE REFEREED TO THE LOCAL SALES OFFICE.

DANGEROUS VOLTAGES ARE PRESENT IN THE EQUIPMENT

WHICH CAN CAUSE DEATH, SERIOUS INJURY OR PROPERTY

DAMAGE. ALWAYS DE-ENERGIZE AND GROUND THE EQUIP-

MENT BEFORE MAINTENANCE. MAINTENANCE SHOULD BE

PREFORMED ONLY BY QUALIFIED PERSONNEL.

THE USE OF UNAUTHORIZED PARTS IN THE REPAIR OF THE

EQUIPMENT, TAMPERING BY UNQUALIFIED PERSONNEL,

WILL RESULT IN DANGEROUS CONDITIONS WHICH CAN

CAUSE DEATH, SERIOUS INJURY OR EQUIPMENT DAMAGE.

FOLLOW ALL SAFETY INSTRUCTIONS CONTAINED HEREIN.

9.4 Cleaning Insulation

Most of the plastics and synthetics used in insulation systems

are attacked by solvents containing aromatics or halogenated

hydrocarbons which may cause crazing and deformation of

the material reducing the dielectric strength. ISOPROPYL

ALCOHOL IS THE ONLY RECOMMENDED SOLVENT CLEANER.

Maintenance

SECTION 10.0 - ADVERSE CONDITIONS

10.1 Ambient Temperatures

Switchboards are designed for installation where the average

ambient temperature will not exceed 40ºC (104ºF). For higher

temperatures, derating may be required. Contact the nearest

Siemens representative to discuss your special application.

10.2 Short Circuits

Overcurrent protective devices will normally prevent electrical

damage except at the actual point where the short circuit or fault

condition occurred. However, the high mechanical stress devel-

oped by short circuit currents may cause damage to conductors,

insulation, or other equipment installed within the switchboard.

After any fault, a thorough inspection of the entire system must

be made to ensure there is no damage to conductors, insulation

or equipment (Refer to inspection and maintenance procedures.)

In addition, overcurrent protective device(s) which performed

the short-circuit interruption must be inspected for possible

arcing damage to contacts, arc chutes, and/or insulation. Do

not open any sealed devices or breaker trip units. Equipment

should be hi-pot tested prior to being placed back in service.

If device is damaged, replacement of that device is required.

10.3 Arcing Damage

During a fault, some organic insulation materials carbonize when

subjected to the intense heat of an electrical arc, and lose their

insulation qualities. Any carbon deposits or tracking must be com-

pletely removed with a dry, lint-free cloth, or the material must

be replaced before re-energization. Contact your local Siemens

sales representative before clean up and corrective action.

10.4 Water Damage

Completely de-energize the switchboard if there is any sign of

moisture or water damage. If damage is believed to be extensive,

or if the equipment has been subjected to moisture for extended

periods, contact your local Siemens sales representative.Addi-

tional information is also available from NEMA publication,

“Guidelines for Handling Water Damaged Electrical Equipment.”

10.5 Corrosive Atmospheres

Switchboards are designed to give optimum performance when

installed in normal indoor or outdoor locations. Where corrosive

atmospheres are encountered, special precautions must be taken

to minimize their effect. Exposed metallic surfaces, non-insulated

bus bars, disconnect switches, primary and secondary discon-

necting contact, wire ends, instrument terminals, etc. must all

be protected. At each maintenance inspection, all of the old

grease should be wiped off of the contacts and new lubricant

applied to all sliding surfaces.

Apply the material in a layer .03-.06” thick. Use only Siemens

Electrical Contact Lubricant, Part No. 15-171-370-002, available

in 8 oz. tubes. Other exposed components can be protected with

a coat of glyptol or other corrosion-resistant coating. When old

grease becomes dirty, wipe the part clean and apply new grease

immediately.

SECTION 11.0 - INFORMATIONAL CHARTS

11.1 Torque Values

Adverse Conditions and Informational Charts

NOTE

THIS EQUIPMENT HAS BEEN TESTED AND INSPECTED BEFORE SHIPMENT. SHIP-

PING CONDITIONS MAY HAVE LOOSENED SOME CONNECTIONS .

BEFORE ENERGIZING, IT IS RECOMMENDED THAT THE TIGHTNESS OF ALL CON-

NECTIONS BE CHECKED.

BELLEVILLE WASHER NUTS THREAD FORMING SCREWS

Bolt Torque Screw Torque in lbs-in.

Size Lbs.-in. Lbs.-ft. Size 0.125 Thick 0.187 Thick 0.25 Thick

1/4-20 72 6 AL CU AL CU AL CU

5/16-18 144 12 8-32 20 25 30 35 30 35

3/8-16 240 20 10-24 20 25 30 50 30 50

1/2-13600 50 1/4-20 30 50 30 72 50 72

BREAKER CONNECTING MACHINE SCREW

Screws Torque in inch lbs

#10 20

1/4” 72

FIELD WIRED CONNECTORS - TIGHTENING TORQUE

Torque all wire connectors, where not marked on the device or component, to

the values indicated in the table below:

Hex Socket Set Screw Slotted Head Screws

Socket Size Torque AWG Torque Lbs.-in.

(Across Flats) Lbs.-in. Wire Small Hole Large Hole

Size #6 - Max. 1/0 Max.

7/32” 150

1/4” 200 #14-10 20 35

5/16” 275 #8 25 40

3/8” 375 #6 35 45

1/2” 500 #4 — 45

9/16” 600 #3-1/0 — 50

BRANCH LOAD CONDUCTORS-PANEL MOUNTED DEVICES

This switchboard designed for installation of conductors per NEC 312.6. Refer

to branch circuit devices for cable size and torque.

EXCEPTIONS FOR 38” WIDE ENCLOSURES

(1) 400 ampere twin mounted JD6, JXD6, JXD2, HJD6, SJD6, CJD6, SHJD6 and

SCJD6 type are limited to a maximum of (1) 500 MCM OR (2) 250 MCM CU-AL

per pole.

As a minimum, wire bending space as required (NEC Tables 312.6(A) and

312.6(B) for this product is based on wire or cable sizes per table 310-16 of the

NEC. Circuits 110 amps and less are sized from the 60º C aluminum column.

Above 110 amps circuits are sized from the 75º C aluminum column. 400 amp

circuits are based on (2) 250 or (1) 500 kcmil cables per phase. 600 amp cir-

cuits and greater are sized based on multiple 500 kcmil cables per phase.

CONNECTORS USED TO TERMINATE FIELD MADE CONNECTIONS ARE SUITABLE

FOR USE WITH CU OR AL 60 DEG C OR 75 DEG C RATED CONDUCTORS. UNLESS

NOTED OTHERWISE ON THE DEVICES.

CAUTION: IF A PANELBOARD IS INSTALLED IN THE SWBD AND MORE THAN 10%

OF THE BREAKER POLES OR FUSIBLE UNITS ARE SUPPLYING LIGHTING AND/OR

APPLIANCE CIRCUITS THEN THIS UNIT IS NOT TO EXCEED 42 CIRCUITS (NEC ARTI-

CLE 408.14, 408.15) ALSO, IF THIS UNIT IS USED AS SERVICE EQUIPMENT, IT IS

LIMITED TO SIZE DISCONNECTS (NEC ARTICLE 230.71).

BOLTED PRESSURE EXCEPTION: WHEN CABLES ARE MOUNTED DIRECTLY TO

BOLTED PRESSURE SWITCH TERMINALS, REFER TO CABLE SELECTION INSTRUC-

TIONS ON SWITCH.

 Torque requirements shown in table are for Grade 5 hardware. Older switch-

boards were supplied with grade 2 hardware. Grade 2 hardware shall be torqued

at 22 FT/LBS or 264 IN/LBS. Refer to Page 7 for a drawing to determine which

grade of hardware is installed.

Informational Charts

11.2 Wire Bending Requirements

Wire Bending space at terminals shall be measured in a

straight line from the end of the lug or wire connector (in

the direction that the wire leaves the terminal) to the wall,

barrier, or obstruction.

For removable (compression type) and lay-in-wire terminals

intended for only one wire, bending space shall be permitted

to be reduced by the number of inches shown in parenthesis.

11.3 Strap Kits

11.3.1 Connecting Strap Kits - Circuit Breaker

For use with Series 6 Circuit Breaker, SB1, SB2 and SB3

Switchboards — includes copper straps, cover plates and

necessary hardware for switchboards. For replacement strap

kits for RCIII switchboards, contact your local sales office.

Note: D = Denotes double branch or twin mounting

S = Denotes single mount

11.3.2 Filler Plates

For use with Series 6 Circuit Breaker Panelboards, SB1, SB2, and

SB3 Switchboards.

Note: When a front filler plate is not completely filled with break-

ers, the openings in the unused space must be closed with 1-pole

filler plates from table.

11.3.3 Connecting Strap Kits Vacu-Break and HCP

For use with SB1, SB2 and SB3 Switchboards. Includes copper

straps and necessary hardware for switchboards.

11.3.4 Blank Plates — Circuit Breaker and Vacu-Break

For use with Series 6, SB1, SB2, and SB3 Switchboards.

Strap Kit

Catalog Height

Breaker Type Number (inches) Mounting

BL, BLH, HBL, BQD SBLBD 3.75 D

ED2, ED4, ED6, HED4, HED6 6E62 3.75 D

CED6 6CLE2 3.75 D

QJ2, QJH2, QH2-H 6QJ2 5D

FXD6, FD6, HFD6 6F62 5D

CFD6 6CLF1 5S

JXD2, JXD6, JD6, HJD6 6JJ61 8.75 S

Single Branch

JXD2, JXD6, JD6, HJD6 6JJ62 8.75 D

Double Branch

CJD6 6CLJ1 8.75 S

SJL, SJD6, SHD6 6SJL1 8.75 S

SCJD6 6SCJ1 8.75 S

LXD6, LD6, HLD6 6LL61 8.75 S

CLD6 6CLL1 8.75 S

SLL, SLD6, SHLD6 6SLL1 8.75 S

SCLD6 6SCL1 8.75 S

LMD6, HLMD6 SLM1D 8.75 S

MD6, HMD6, CMD6 SMND 10 S

SMD6, SHMD6, SCMD6 SSMND 10 S

ND6, HND6, CND6 SMND 10 S

SND6, SHND6, SCND6 SSMND 10 S

Wire Bending NEC 312.6

WIRES A B

#1/0 3-1/2” 5-1/2”

1-300 5” 10”(3)

1-500 6” 14”(3)

1-750 8” 17”(3)

2-300 8” 10”(2)

2-500 8” 14”(3)

2-750 12” 19”(3)

3-400 10” 14”(3)

3-500 10” 15”(3)

3-750 14” 22”(3)

4-500 12” 16”(3)

4-750 16” 24”(3)

5-500 14” 16”(3)

5-750 18” 24”(3)

Height Catalog Number

(inches) Series 6

1¹⁄₄ 6FPB01

2¹⁄₂ 6FPB02

3³⁄₄ 6FPB03

56FPB05

10 6FPB10

Ampere Unit Height Catalog

Rating (inches) Number

30-30 5, 7¹⁄₂

30-60 5, 7¹⁄₂

60-60 5, 7¹⁄₂ VB657

60-100 7¹⁄₂

100-100 7¹⁄₂

100 7¹⁄₂

200 7¹⁄₂, 10 VB671

200-200 10 VB610

400-600 15 VB6150

800-1200 (HCP) 16¹⁄₂ F6162D

Breaker Filler Plate

Frame Catalog Number

BQ, BQH, HBQ, E2, E4, E6, HE4, HE6,

E2-A, E-4A, E6-A, HE4-A OR HE6-A QF3

AND ED2, ED4, ED6, HED4, HED6

Informational Charts

11.4 Ground Fault Test Record - Internal

PERFORMANCE TEST REPORT

GROUND FAULT PROTECTION

Job: ______________________________________________________________________________________________________________

Location:______________________________________________________ Date of Test: _______________________________________

Circuit:_____________________________________________________________________________________________________________

Switchboard: _________________________________________________________________________Single/Double End _____________

Disconnect Device: _________________________________________________________________________________________________

GF Protective Device: _______________________________________________________________________________________________

GF Sensor: ________________________________________________________________________________________________________

Test Equipment: (Describe on back or attach a page.)

Test Setup and Method: (Describe on back or attach a page.)

A. INSPECTION

1. Wiring and conductors

2. Connections and wire clamping

3. Bonding, splice bussing and grounding

4. Sensor mounting and wiring

5. Control circuit overcurrent protection

6. Other: _______________________________________________________________________________________________________

B. INSULATION RESISTANCE

1. Neutral-to-ground

2. Neutral-to-enclosure

3. Enclosure and grd. bus-to-ground

4. Grounded service conductor-to-ground

5. Other: _______________________________________________________________________________________________________

C. OPERATION TEST

1. GF protective device setting: _______________A, _____________________sec. Time Curve: _____________________________

2. Control Power ________________________________________________________________________________________________

3. Test Current: (a) __________________________________A, x ______________________ turns = _______________________AT

or (b) Test set signal ________________________________________________________________________________________

or (c) Primary Current _______________________________A

4. Trip operation

5. Time Delay: one second or less

6. Test button, lamp, indicator operation

7. Other: ________________________________________________________________________________________________________

D. LABEL AFFIXED 

E. EQUIPMENT RESTORED TO OPERATIONAL CONDITION

GFP settings (as left) _____________________________________________________________________________________________

Tested by: _________________________________________________________

(1) This test record to be retained by those in charge of the building electrical installation.

(2) Make the report available to the authority having jurisdiction.

Dwg. No. 15-7732 Rev. 1

Test Record

Date By Amp Setting Time Setting Notes

Informational Charts

PERFORMANCE TEST REPORT

GROUND FAULT PROTECTION

Job: ______________________________________________________________________________________________________________

Location:______________________________________________________ Date of Test: _______________________________________

Circuit:_____________________________________________________________________________________________________________

Switchboard: _________________________________________________________________________Single/Double End _____________

Disconnect Device: _________________________________________________________________________________________________

GF Protective Device: _______________________________________________________________________________________________

GF Sensor: ________________________________________________________________________________________________________

Test Equipment: (Describe on back or attach a page.)

Test Setup and Method: (Describe on back or attach a page.)

Disconnect

Device

Main Bonding

Jumper

Neutral Disconnect

Link No grounds permitted

downstream from

bonding jumper

neutral, if used

From Sensor

To Control Power Source

Load

Main Power Source

Ground

Fault

Relay (GFR)

Shunt

Trip

Device

To GFR To GFR

#2 #1

Fig. #1

Sensor (GFS)

Ground Fault Testing

Warning: The following should be performed only by qualified personnel as defined in N.E.C. Article 100. The ground fault sensor (GFS), ground fault

relay (GFR), must be installed as in Fig. 1.

GFS #1, is the standard location

GFS #2, alternate location for GFS

1. Disconnect Main Power Source.

2. Remove the neutral disconnect link. Make sure the neutral is

grounded only by the main bonding jumper, which must be on

the line side of the sensor.

3. Close all branch devices.

4. Using a “megger” type meter, measure the resistance of the load

phase and neutral to ground. This is to ensure that no ground

connections exist in the system. Resistance readings of (1)

Megohm or greater are preferred.

5. Re-install the neutral disconnect link.

6. Open all branch devices.

7. Connect the main power source.

8. To Test The Entire System.

a. Check for control power. (LED should be illuminated).

b. Press the “push to test” switch on the relay.

c. The trip indicator should go to the “tripped” position and the

disconnect device should operate.

d. Release the “push to test” switch and return the trip indicator to

the “reset” position.

e. Reset or “close” the disconnect device for normal operation of

the switchboard.

9. This test meets the requirements of the National Electrical Code

Section 230.95 (C).

11.5 Ground Fault Test Record- External

Service Bulletins

SECTION 12.0 - SERVICE BULLETINS

ED Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0271E

FD Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0272D

JD & LD Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0273C

MD & ND Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0274D

PD & RD Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0275B

Sensitrip® JD & LD Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0277B

Sensitrip MD & ND Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0278B

Sensitrip PD Frame Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-0279A

SB Encased System Breakers 800A - 5000A Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-2210C

SB Electrical Trip Unit Installation and Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IPIM-2203C

RL Breaker Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SGVT-2002A

ACCESS Installation System Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SGIN-6028A

REFERENCE INFORMATION

NFPA7O (NEC)

NFPA 70 E

NEMA PB2

NEMA PB2.1

NEMA PB2.2

NEMA AB4

UL891

Siemens Energy & Automation, Inc.

3333 Old Milton Parkway

Alpharetta, GA 30005

1-800-964-4114

seainfo@sea.siemens.com

www.sea.siemens.com/power

Order # SWIM-00100-0603 Rev 0603 B&A

(Siemens Internal Part Number 11-A-1077-01 Rev. 1)

Siemens is a registered trademark of Siemens AG. SENTRON and Sensitrip are registered trademarks of Siemens Energy & Automation, Inc.

Product names mentioned may be trademarks or registered trademarks of their respective companies. Specifications are subject to change

without notice.

Siemens SB3 User Manual To The B18d5fd6 58b0 424a A5fd C8fc27ed073f

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