Emerson Asco 300 Series Commercial Power Control System Brochures And Data Sheets

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1

The ASCO Series 346 Digital Power

Control System is a standardized

generator paralleling system

offering the sophisticated

functionality normally found in

custom designs.

•Reliablystarts,synchronizes,parallels,

monitorsandprotectsengine-

generatorsetsforprimepowerand

emergencypowerapplications.

•Smoothlyintegratesengine-generator

setsandpowertransferswitches.

•Automaticloadmanagementcontrol.

Onepriorityblockpergenerator,each

handlinguptoeightloadsperpriority

block,uptofourgenerators.



•Providesfull,self-contained

congurability.Noneedforalaptop.

•Includescommunicationportsthat

provideinternetandintranetaccessto

systemstatusandfunctions.

•Easytoinstall,setup,commission,

operateandservice.

FOR COMMERCIAL, HEALTHCARE,

DATACENTERS AND INDUSTRIAL

FACILITIES...WHEREVER CONTROL

OF ON SITE GENERATORS IS NEEDED

Series 346 Digital Power Control System

TheASCOSeries346

PowerControlSystemoffers

wide-rangingfeaturesthat

makeyourfacility’semer-

gencypowersystemmore

effectiveandefcient.

Digitalmicroprocessor-

basedtechnologystream-

linesandsimpliestotal

generatorloadcontroland

enginemanagement.The

entirecontrolsystemts

intooneenclosure.

Thetechnologyis

compatiblewithengines

equippedwithanelectronic

enginespeedcontrollerand

voltageregulator.

Asignicantlysmaller

footprintmeetsthede-

mandingrequirementsof

tightorunconventional

oorspaces.

Quickermanufacturing

leadtimesandstandardized

congurationproducefaster

delivery.

Door-mounted,soft-

ware-baseddisplayscreens

communicateeasy-to-un-

derstandinformationinless

space.

Digitalmetering

measuresvoltage,amps,

wattsandfrequency.It

alsoincludesprotective

relayfunctionsasstandard

features.

Drawoutinsulated-case

circuitbreakersthatparallel

thegeneratortotheemer-

gencybusareanintegral

partofthesystem’sdesign.

Thesystemisratedat

800to3,000amperesper

generator.

It,ofcourse,meetsor

exceedstherequirements

ofUL891andapplicable

standardsofNEMA,IEEE,

andANSI.Thesystemis

labeledUL891.

2

independent

generator control

Independent Digital Generator Control Panels

manage emergency standby systems comprised of up to four engine-generators

Independentmicropro-

cessor-basedDigitalGenera-

torControlPanelsprovide

completegeneratorload

controlandenginemanage-

mentforgeneratorsrang-

ingincapacityfrom250kW

to2MW.

Eachcontrolpanel

monitorsanengine-gen-

erator,displaysparameters

forthatengine-generator,

annunciatesgeneratorand

enginealarms,andcontrols

enginespeedandgenera-

torvoltageforsynchroniz-

ingandisochronousload

sharing.

Thepanelsautomatically

synchronizevoltageand

frequency,andmatchphase

angleswithintwodegrees

ofphaseand0.1percent

ofvoltage.Real(kW)load

controlandreactive(kVAR)

controlsarealsoincluded.

Eachcontrolpanelalso

operatesitsrespective

generatorcircuitbreaker,

integraltothesystem,for

parallelingorshutdown.

Safedeadbusclosing

ensuresthatonlyonegen-

eratorconnectstothebus

atatime.

Usingintegratedcontrol

logic,thesystemtransfers

thehighestpriorityblockof

loadtotherstengine-gen-

eratorthatproducesaccept-

ablevoltageandfrequency.

Operatorinterface

screensdisplay:

•Systemstatus

•Enginestatus

•Generatormetering

•DGCPinput/output

•Synchronizationstatus

•Loadstatus

•PF/kVARstatus

•Alarm/Eventlog

Thecontrolpanelshave

velevelsofbuilt–in

securitytoprotectagainst

congurationchangesand

alarmpurgesbyunauthor-

izedpersonnel.Alaptopis

notrequiredtocongure

thesystem.

AModbus®RTURS422

portenablescommunica-

tiontoremotesystemsand

allowsthosesystemsto

accessengineandgenerator

parameters.

3

World-classtechnologyfor

reliablepowertransfer

8

The optional ASCO

5500 Thin Web Server

provides Web-enabled

control.

An operator or

supervisor can monitor

various transfer switch,

engine and generator

parameters remotely using

the Thin Web Server.

The server provides

real time access and control

of critical power system

performance.

Users can manage,

check system status and

recognize potential system

failure.

It requires no dedicated

hardware or software

to operate and can be

connected to any standard

PC with a Microsoft®

Internet Explorer browser.

E-mail and text paging

features alert users of

abnormal conditions.

Communication Products

The optional ASCO 5150

Connectivity Module pro-

vides Ethernet and RS485

Communications to ASCO

Transfer Switch controllers

and ASCO Power Managers.

Embedded HTML pages

are provided for monitoring

of electrical parameters and

alarms. The communication

ASCO 5150 Connectivity Module.

ASCO 5500 Thin Web Server.

Generator Breakers

9

Generator circuit

breakers offer drawout

convenience to simplify

maintenance or

replacement.

Electrically-operated

front-serviceable drawout

breakers are available in

800 amp to 3000 amp

frame sizes.The Square D,

NW, 5.0P insulated case

circuit breakers are UL 489

listed and are included with

an adjustable long time

delay, short time delay,

instantaneous overcurrent

trip and ground fault alarm.

Additional features

include 120VAC electrical

operation, 24 VDC shunt

trip, bell alarm, 4a and

4b auxiliary contacts, a

protective cover for the

manual close pushbutton,

and instantaneous and

ground fault indications.

Square D Micrologic

5.0P Trip units provide

monitoring of electrical

parameters as well as visual

indication. Trip settings

are adjustable from 40 %

to 100% of the generator

breaker frame size and

a Modbus® RTU port

provides communications

to the Emergency Power

Communication System.

Generator breaker and bus ampacity1,3

1. Square D MASTERPACT® NW Insulated Case Circuit Breaker

2. Adjustable Trip Settings 40% to 100% of Breaker Frame Size

3. Bus bracing level 100,000 amperes.

2500

2500

2500

4000

4000

6000

6000

1000

1000

1000

1000

1000

2000

2000

GEN SIZE

(kw @480V)

Breaker Frame

(Amps)

Breaker Trip

(Amps)2

Phase &Neutral

Bus (Amps)

Ground Bus

(Amps)

230 - 500

300 - 650

350 - 800

450 -1000

550 -1250

700 -1500

800 -2000

800

1200

1200

1600

2000

2500

3000

800

1000

1200

1600

2000

2500

3000

SyStem F unctionS

Generator Protection

• Device 27/59- Under

and Over Voltage

• Device 81- Under and

Over Frequency

• Device 32- Reverse

Power (Inverse Time

Delay)

• Device 40- Loss of

Excitation

• Device 81U- Bus Under

Frequency

• Over Current (Inverse

Time Delay)

Synchronizing

• Phase Match

Synchronization

• 3 Mode Operation: Run,

Check, Permissive

• Voltage Matching

• Dead Bus Closing

• Synch Timer

• Reclose Attempt/Timer

• Manual Synchronization

(Permissive Mode)

Generator Voltage

And Reactive Load

Control

• Power Factor Sharing In

Load Sharing Mode

• Externally Adjustable

Var/Pf Reference

• Manual Voltage Control

AC Metering

• 3 Phase Voltage

• 3 Phase Current

• kWh

• kW, kVA, and kVAR

• Power Factor

• Frequency

Engine Control

• Multiple Crank Cycle

Timer

• Crank Timer

• Crank Fail Alarm/

Shutdown

• Crank Cutout (Rpm)

• Engine Preglow

• Idle/Rated Relay Output

• Engine Runtime

Engine Protection

• Oil Pressure -Over/

Under Alarm/Shutdown

Settings

• Water Temperature -

Over/Under Alarm/

Shutdown Settings

• Battery Voltage - Over/

Under Alarm/Shutdown

Settings

• Overspeed - Alarm/

Shutdown Settings

format will support up to 8

clients simultaniously over

an Ethernet Connection.

An ASCO 5110 communi-

cation module also available

with only RS485 communi-

cations for monitoring and

control with ASCO Power-

Quest® systems.

4

The ASCO 5350 Power

Transfer Switch Remote

Annunciator is a stand-

alone, industrial grade

interface device providing

you with the most critical

transfer switch status

indication and transfer/

retransfer control for up to

eight switches. Ethernet

technology is built in for

faster and more reliable

communications. LEDs

indicate switch status

and position, while

separate push buttons

individually initiate transfer

switch operation and

testing. Transfer switch

annunciators can be set

up in multiple locations to

monitor various transfer

switches, allowing

redundant and distributed

annunciation.

ASCO 5350 Remote Annunciator.

Maximum Reliability & Excellent Value

An under frequency

monitor on the main bus

monitors generator loading.

Lowest priority loads

will be shed automatically

so critical priority one

loads stay energized if

the generators become

overloaded, if one of the

running generators fails,

or if one of the generators

Priority load management

One priority block per generator with eight loads

per block, such as electrically operated load

distribution circuit breakers or power transfer

switches, can be block load controlled.

5

A Generator Control Station includes a ve-position selector

switch for each engine generator. The settings are lockout/reset,

off/cooldown, automatic test off line and test on line. Indicator

lights signal when the generator is running and when controls are

not in the automatic operation.

A System Control Station includes an alarm horn with alarm silence

push-button. Push-buttons are also included for resetting priority

two loads and the under frequency alarm. Visual indication

provides status of priority two, three or four loads and emergency

mode operation.

fails to start when a power

outage occurs.

Visual indication

identies the status of

priority load blocks and a

push-button allows for a

manual override of shed

load blocks.

Load demand management

Available on Two Engine Systems

In the optional load

demand mode with more

than one generator online,

the system monitors total

load demand. If the load

falls below 80% of rated

output of the highest

priority generators, lower

priority engines (selectable)

will shut down after an

adjustable time delay. If the

load increases above 90% of

rated output of the highest

priority generators already

operating, the next priority

engine will be signaled to

start and come online after

an adjustable time delay.

If an under-frequency

bus condition is detected,

the system will exit load

demand mode and signal

all additional engines to

start and come online. If an

engine fails while in load

demand mode, all additional

generators will be signaled

to start and come online,

and the lowest priority loads

will be shed.

(Accessory LD)

ASCO 5220D

Power

Manager

ASCO Series 346

Generator

Paralleling

System

(up to four engines)

Utility

Power

ASCO Series 300

Automatic Transfer

Switch

Building

Management

System

Twisted Pair Gen Communications

RS422 MODBUS

Engine Generator

Communications Module

HUB

Remote

Access

PC

ATS Remote

Annunciator

Email

Server

Email

Pager

To Additional

Automatic Transfer

Switches

ASCO 4000 Series

Automatic Transfer

Switch

ASCO 7000 Series

Bypass Isolation

Transfer Switch

ASCO 7000 Series

Closed Transition-Bypass

Isolation Transfer Switch

RS485 MODBUS

Internet

Maintenance

Room PC or

Facility

Network

Ethernet

RS485 RS485

ASCO - Thin

Web Server

with Embedded

HTML Pages for

Monitoring and

Control

RS232

ASCO 5150

Connectivity

Module

Engine Generator Engine Generator

RS232

Ethernet

RS485

RS485

MODBUS

RS422

MODBUS

Legend

ASCO 5110

Communication

Module

ASCO 5110

Communication

Module

ASCO 5110

Communication

Module

HUB

Network Your Emergency

Power System

ASCO communications products allow for the monitoring and control of your emergency or

standby power distribution system. Local area networks and remote networks are supported with either

single or multiple points of access, and web-enabled communications allow access to your power system

from anywhere in the world.

6 7

8

The optional ASCO

5500 Thin Web Server

provides Web-enabled

control.

An operator or

supervisor can monitor

various transfer switch,

engine and generator

parameters remotely using

the Thin Web Server.

The server provides

real time access and control

of critical power system

performance.

Users can manage,

check system status and

recognize potential system

failure.

It requires no dedicated

hardware or software

to operate and can be

connected to any standard

PC with a Microsoft®

Internet Explorer browser.

E-mail and text paging

features alert users of

abnormal conditions.

Communication Products

The optional ASCO 5150

Connectivity Module pro-

vides Ethernet and RS485

Communications to ASCO

Transfer Switch controllers

and ASCO Power Managers.

Embedded HTML pages

are provided for monitoring

of electrical parameters and

alarms. The communication

ASCO 5150 Connectivity Module.

ASCO 5500 Thin Web Server.

Generator Breakers

9

Generator circuit

breakers offer drawout

convenience to simplify

maintenance or

replacement.

Electrically-operated

front-serviceable drawout

breakers are available in

800 amp to 3000 amp

frame sizes.The Square D,

NW, 5.0P insulated case

circuit breakers are UL 489

listed and are included with

an adjustable long time

delay, short time delay,

instantaneous overcurrent

trip and ground fault alarm.

Additional features

include 120VAC electrical

operation, 24 VDC shunt

trip, bell alarm, 4a and

4b auxiliary contacts, a

protective cover for the

manual close pushbutton,

and instantaneous and

ground fault indications.

Square D Micrologic

5.0P Trip units provide

monitoring of electrical

parameters as well as visual

indication. Trip settings

are adjustable from 40 %

to 100% of the generator

breaker frame size and

a Modbus® RTU port

provides communications

to the Emergency Power

Communication System.

Generator breaker and bus ampacity1,3

1. Square D MASTERPACT® NW Insulated Case Circuit Breaker

2. Adjustable Trip Settings 40% to 100% of Breaker Frame Size

3. Bus bracing level 100,000 amperes.

2500

2500

2500

4000

4000

6000

6000

1000

1000

1000

1000

1000

2000

2000

GEN SIZE

(kw @480V)

Breaker Frame

(Amps)

Breaker Trip

(Amps)2

Phase &Neutral

Bus (Amps)

Ground Bus

(Amps)

230 - 500

300 - 650

350 - 800

450 -1000

550 -1250

700 -1500

800 -2000

800

1200

1200

1600

2000

2500

3000

800

1000

1200

1600

2000

2500

3000

SyStem F unctionS

Generator Protection

• Device 27/59- Under

and Over Voltage

• Device 81- Under and

Over Frequency

• Device 32- Reverse

Power (Inverse Time

Delay)

• Device 40- Loss of

Excitation

• Device 81U- Bus Under

Frequency

• Over Current (Inverse

Time Delay)

Synchronizing

• Phase Match

Synchronization

• 3 Mode Operation: Run,

Check, Permissive

• Voltage Matching

• Dead Bus Closing

• Synch Timer

• Reclose Attempt/Timer

• Manual Synchronization

(Permissive Mode)

Generator Voltage

And Reactive Load

Control

• Power Factor Sharing In

Load Sharing Mode

• Externally Adjustable

Var/Pf Reference

• Manual Voltage Control

AC Metering

• 3 Phase Voltage

• 3 Phase Current

• kWh

• kW, kVA, and kVAR

• Power Factor

• Frequency

Engine Control

• Multiple Crank Cycle

Timer

• Crank Timer

• Crank Fail Alarm/

Shutdown

• Crank Cutout (Rpm)

• Engine Preglow

• Idle/Rated Relay Output

• Engine Runtime

Engine Protection

• Oil Pressure -Over/

Under Alarm/Shutdown

Settings

• Water Temperature -

Over/Under Alarm/

Shutdown Settings

• Battery Voltage - Over/

Under Alarm/Shutdown

Settings

• Overspeed - Alarm/

Shutdown Settings

format will support up to 8

clients simultaniously over

an Ethernet Connection.

An ASCO 5110 communi-

cation module also available

with only RS485 communi-

cations for monitoring and

control with ASCO Power-

Quest® systems.

4

The ASCO 5350 Power

Transfer Switch Remote

Annunciator is a stand-

alone, industrial grade

interface device providing

you with the most critical

transfer switch status

indication and transfer/

retransfer control for up to

eight switches. Ethernet

technology is built in for

faster and more reliable

communications. LEDs

indicate switch status

and position, while

separate push buttons

individually initiate transfer

switch operation and

testing. Transfer switch

annunciators can be set

up in multiple locations to

monitor various transfer

switches, allowing

redundant and distributed

annunciation.

ASCO 5350 Remote Annunciator.

Maximum Reliability & Excellent Value

An under frequency

monitor on the main bus

monitors generator loading.

Lowest priority loads

will be shed automatically

so critical priority one

loads stay energized if

the generators become

overloaded, if one of the

running generators fails,

or if one of the generators

Priority load management

One priority block per generator with eight loads

per block, such as electrically operated load

distribution circuit breakers or power transfer

switches, can be block load controlled.

5

A Generator Control Station includes a ve-position selector

switch for each engine generator. The settings are lockout/reset,

off/cooldown, automatic test off line and test on line. Indicator

lights signal when the generator is running and when controls are

not in the automatic operation.

A System Control Station includes an alarm horn with alarm silence

push-button. Push-buttons are also included for resetting priority

two loads and the under frequency alarm. Visual indication

provides status of priority two, three or four loads and emergency

mode operation.

fails to start when a power

outage occurs.

Visual indication

identies the status of

priority load blocks and a

push-button allows for a

manual override of shed

load blocks.

Load demand management

Available on Two Engine Systems

In the optional load

demand mode with more

than one generator online,

the system monitors total

load demand. If the load

falls below 80% of rated

output of the highest

priority generators, lower

priority engines (selectable)

will shut down after an

adjustable time delay. If the

load increases above 90% of

rated output of the highest

priority generators already

operating, the next priority

engine will be signaled to

start and come online after

an adjustable time delay.

If an under-frequency

bus condition is detected,

the system will exit load

demand mode and signal

all additional engines to

start and come online. If an

engine fails while in load

demand mode, all additional

generators will be signaled

to start and come online,

and the lowest priority loads

will be shed.

(Accessory LD)

ASCO 5220D

Power

Manager

ASCO Series 346

Generator

Paralleling

System

(up to four engines)

Utility

Power

ASCO Series 300

Automatic Transfer

Switch

Building

Management

System

Twisted Pair Gen Communications

RS422 MODBUS

Engine Generator

Communications Module

HUB

Remote

Access

PC

ATS Remote

Annunciator

Email

Server

Email

Pager

To Additional

Automatic Transfer

Switches

ASCO 4000 Series

Automatic Transfer

Switch

ASCO 7000 Series

Bypass Isolation

Transfer Switch

ASCO 7000 Series

Closed Transition-Bypass

Isolation Transfer Switch

RS485 MODBUS

Internet

Maintenance

Room PC or

Facility

Network

Ethernet

RS485 RS485

ASCO - Thin

Web Server

with Embedded

HTML Pages for

Monitoring and

Control

RS232

ASCO 5150

Connectivity

Module

Engine Generator Engine Generator

RS232

Ethernet

RS485

RS485

MODBUS

RS422

MODBUS

Legend

ASCO 5110

Communication

Module

ASCO 5110

Communication

Module

ASCO 5110

Communication

Module

HUB

Network Your Emergency

Power System

ASCO communications products allow for the monitoring and control of your emergency or

standby power distribution system. Local area networks and remote networks are supported with either

single or multiple points of access, and web-enabled communications allow access to your power system

from anywhere in the world.

6 7

An under frequency

monitor on the main bus

monitors generator loading.

Lowest priority loads

will be shed automatically

so critical priority one

loads stay energized if

the generators become

overloaded, if one of the

running generators fails,

or if one of the generators

Priority load management

One priority block per generator with eight loads

per block, such as electrically operated load

distribution circuit breakers or power transfer

switches, can be block load controlled.

5

A Generator Control Station includes a ve-position selector

switch for each engine generator. The settings are lockout/reset,

off/cooldown, automatic test off line and test on line. Indicator

lights signal when the generator is running and when controls are

not in the automatic operation.

A System Control Station includes an alarm horn with alarm silence

push-button. Push-buttons are also included for resetting priority

two loads and the under frequency alarm. Visual indication

provides status of priority two, three or four loads and emergency

mode operation.

fails to start when a power

outage occurs.

Visual indication

identies the status of

priority load blocks and a

push-button allows for a

manual override of shed

load blocks.

Load demand management

Available on Two Engine Systems

In the optional load

demand mode with more

than one generator online,

the system monitors total

load demand. If the load

falls below 80% of rated

output of the highest

priority generators, lower

priority engines (selectable)

will shut down after an

adjustable time delay. If the

load increases above 90% of

rated output of the highest

priority generators already

operating, the next priority

engine will be signaled to

start and come online after

an adjustable time delay.

If an under-frequency

bus condition is detected,

the system will exit load

demand mode and signal

all additional engines to

start and come online. If an

engine fails while in load

demand mode, all additional

generators will be signaled

to start and come online,

and the lowest priority loads

will be shed.

(Accessory LD)

ASCO 5220D

Power

Manager

ASCO Series 346

Generator

Paralleling

System

(up to four engines)

Utility

Power

ASCO Series 300

Automatic Transfer

Switch

Building

Management

System

Twisted Pair Gen Communications

RS422 MODBUS

Engine Generator

Communications Module

HUB

Remote

Access

PC

ATS Remote

Annunciator

Email

Server

Email

Pager

To Additional

Automatic Transfer

Switches

ASCO 4000 Series

Automatic Transfer

Switch

ASCO 7000 Series

Bypass Isolation

Transfer Switch

ASCO 7000 Series

Closed Transition-Bypass

Isolation Transfer Switch

RS485 MODBUS

Internet

Maintenance

Room PC or

Facility

Network

Ethernet

RS485 RS485

ASCO - Thin

Web Server

with Embedded

HTML Pages for

Monitoring and

Control

RS232

ASCO 5150

Connectivity

Module

Engine Generator Engine Generator

RS232

Ethernet

RS485

RS485

MODBUS

RS422

MODBUS

Legend

ASCO 5110

Communication

Module

ASCO 5110

Communication

Module

ASCO 5110

Communication

Module

HUB

Network Your Emergency

Power System

ASCO communications products allow for the monitoring and control of your emergency or

standby power distribution system. Local area networks and remote networks are supported with either

single or multiple points of access, and web-enabled communications allow access to your power system

from anywhere in the world.

6 7

8

The optional ASCO

5500 Thin Web Server

provides Web-enabled

control.

An operator or

supervisor can monitor

various transfer switch,

engine and generator

parameters remotely using

the Thin Web Server.

The server provides

real time access and control

of critical power system

performance.

Users can manage,

check system status and

recognize potential system

failure.

It requires no dedicated

hardware or software

to operate and can be

connected to any standard

PC with a Microsoft®

Internet Explorer browser.

E-mail and text paging

features alert users of

abnormal conditions.

Communication Products

The optional ASCO 5150

Connectivity Module pro-

vides Ethernet and RS485

Communications to ASCO

Transfer Switch controllers

and ASCO Power Managers.

Embedded HTML pages

are provided for monitoring

of electrical parameters and

alarms. The communication

ASCO 5150 Connectivity Module.

ASCO 5500 Thin Web Server.

Generator Breakers

9

Generator circuit

breakers offer drawout

convenience to simplify

maintenance or

replacement.

Electrically-operated

front-serviceable drawout

breakers are available in

800 amp to 3000 amp

frame sizes.The Square D,

NW, 5.0P insulated case

circuit breakers are UL 489

listed and are included with

an adjustable long time

delay, short time delay,

instantaneous overcurrent

trip and ground fault alarm.

Additional features

include 120VAC electrical

operation, 24 VDC shunt

trip, bell alarm, 4a and

4b auxiliary contacts, a

protective cover for the

manual close pushbutton,

and instantaneous and

ground fault indications.

Square D Micrologic

5.0P Trip units provide

monitoring of electrical

parameters as well as visual

indication. Trip settings

are adjustable from 40 %

to 100% of the generator

breaker frame size and

a Modbus® RTU port

provides communications

to the Emergency Power

Communication System.

Generator breaker and bus ampacity1,3

1. Square D MASTERPACT® NW Insulated Case Circuit Breaker

2. Adjustable Trip Settings 40% to 100% of Breaker Frame Size

3. Bus bracing level 100,000 amperes.

2500

2500

2500

4000

4000

6000

6000

1000

1000

1000

1000

1000

2000

2000

GEN SIZE

(kw @480V)

Breaker Frame

(Amps)

Breaker Trip

(Amps)2

Phase &Neutral

Bus (Amps)

Ground Bus

(Amps)

230 - 500

300 - 650

350 - 800

450 -1000

550 -1250

700 -1500

800 -2000

800

1200

1200

1600

2000

2500

3000

800

1000

1200

1600

2000

2500

3000

SyStem F unctionS

Generator Protection

• Device 27/59- Under

and Over Voltage

• Device 81- Under and

Over Frequency

• Device 32- Reverse

Power (Inverse Time

Delay)

• Device 40- Loss of

Excitation

• Device 81U- Bus Under

Frequency

• Over Current (Inverse

Time Delay)

Synchronizing

• Phase Match

Synchronization

• 3 Mode Operation: Run,

Check, Permissive

• Voltage Matching

• Dead Bus Closing

• Synch Timer

• Reclose Attempt/Timer

• Manual Synchronization

(Permissive Mode)

Generator Voltage

And Reactive Load

Control

• Power Factor Sharing In

Load Sharing Mode

• Externally Adjustable

Var/Pf Reference

• Manual Voltage Control

AC Metering

• 3 Phase Voltage

• 3 Phase Current

• kWh

• kW, kVA, and kVAR

• Power Factor

• Frequency

Engine Control

• Multiple Crank Cycle

Timer

• Crank Timer

• Crank Fail Alarm/

Shutdown

• Crank Cutout (Rpm)

• Engine Preglow

• Idle/Rated Relay Output

• Engine Runtime

Engine Protection

• Oil Pressure -Over/

Under Alarm/Shutdown

Settings

• Water Temperature -

Over/Under Alarm/

Shutdown Settings

• Battery Voltage - Over/

Under Alarm/Shutdown

Settings

• Overspeed - Alarm/

Shutdown Settings

format will support up to 8

clients simultaniously over

an Ethernet Connection.

An ASCO 5110 communi-

cation module also available

with only RS485 communi-

cations for monitoring and

control with ASCO Power-

Quest® systems.

4

The ASCO 5350 Power

Transfer Switch Remote

Annunciator is a stand-

alone, industrial grade

interface device providing

you with the most critical

transfer switch status

indication and transfer/

retransfer control for up to

eight switches. Ethernet

technology is built in for

faster and more reliable

communications. LEDs

indicate switch status

and position, while

separate push buttons

individually initiate transfer

switch operation and

testing. Transfer switch

annunciators can be set

up in multiple locations to

monitor various transfer

switches, allowing

redundant and distributed

annunciation.

ASCO 5350 Remote Annunciator.

Maximum Reliability & Excellent Value

Enclosure Depth in (mm) Accessory Height in (mm) Depth Accessory Height in (mm) Depth in (mm)

ordering i nfo rmatio n

To order an ASCO 346 Series Generator Paralleling System, complete the following catalog number.

1. Consult the factory for systems other than 3 phase, 4 wire

2. NEMA 1 systems 1200 amps and below are provided at 48” deep standard with an option to increase the depth to 60” or 72”. NEMA 1 systems

1600 amps and above are provided 60” deep as standard with an option to increase the depth to 72”. NEMA 3R systems 1200 amps and below are

provided 60” deep standard with an option to increase the depth to 72” or 84”. Nema 3R systems 1600 amps are provided 72” deep standard with an

option to increase the depth to 84”.

3. ANSI 61 Gray Standard.

346 0800 M N 6 4 C1



Product Amperes Lug Type Voltage Code1 Frequency Code Enclosure Depth2 Enclosure3

346

(2Gens)

347

(4Gens)

0800

1000

1200

1600

2000

2500

3000

115

120

208

220

230

240

380

400

415

440

460

480

550

575

600

5

6

50Hz

60Hz

48”

60”

72”

84”

NEMAType1

ANSI61Gray

NEMAType3R

ANSI61Gray

NEMAType1

ANSI49Gray

NEMAType3R

ANSI49Gray

M

C

Mechanical

Compression

A

B

C

D

E

F

H

J

K

L

M

N

P

Q

R

4

6

7

8

C1

F1

C2

F2

The Example Catalog Number Above is 3460800MN64C

1. All pull boxes are NEMA 1, top mounted 36” wide.

2. An overhead circuit breaker lifting device with trolley, rails and mounting rails is available.Order as accessory 82.

3. Shipped separately, must be installed by contractor.

PullBoxwithoutprovisionsforoverheadliftingdevice1

Pull Box Options3

PullBoxwithprovisionsforoverheadliftingdevice1,2

48(1219)

60(1524)

72(1829)

42B1

42B2

42B3

12(305)

12(305)

12(305)

24(610)

36(914)

48(1219)

42B4

42B5

42B6

24(610)

24(610)

24(610)

24(610)

36(914)

48(1219)

42A4

42A5

42A6

Enclosure Depth in (mm) Accessory Height in (mm) Depth Accessory Height in (mm) Depth in (mm)



48(1219)

60(1524)

72(1829)

12(305)

12(305)

12(305)

48(1219)

60(1524)

72(1829)

42A1

42A2

42A3

24(610)

24(610)

24(610)

48(1219)

60(1524)

72(1829)



Generator Breaker

Rating amps

Max # of

Conductors per

Gen Terminal

Max # of

Conductors per

Load Terminal

Max # of Ground

Bus Conductors

Range of CU

Conductor Sizes

Range of AL

Conductor Sizes

800

1000

1200

1600

2000

2500

3000

4

5

5

6

7

8

9

8

10

10

12

14

16

18

2

3

3

3

4

4

5

3/0to800MCM

3/0to800MCM

3/0to800MCM

3/0to800MCM

3/0to800MCM

3/0to800MCM

3/0to800MCM

250to800MCM

250to800MCM

250to800MCM

250to800MCM

250to800MCM

250to800MCM

250to800MCM

Sizes of UL-Listed Solderless Screw-Type Terminals for External Power Connections

10

800-1200 Amp

*OptionalEnclosureDepths

Code,6-60Inches

Code,7-72Inches

*

11

*

Dimensions and Shipping Weights

NEMA 1 (per section)**

Dimensions and Shipping Weights

NEMA 1 (per section)**

*OptionalEnclosureDepths

Code,7-72Inches

1600-3000 Amp

Shipping Weights**

Shipping Weights**

Depth

in(mm)

1600-2000

1600-2000

2500-3000

2500-3000

60(1524)

72(1829)

60(1524)

72(1829)

2085(947)

2206(1003)

2385(1084)

2506(1139)

Enclosed

Weight lb(kg)

800-1200

800-1200

800-1200

48(1219)

60(1524)

72(1829)

1964(892)

2024(920)

2085(948)



Depth

in(mm)

Enclosed

Weight lb(kg)

Amps

Amps

**Singlesectionfortwo-generator

systems;secondsectionrequired

forfourgeneratorsystems

800-1200 Amp

*OptionalEnclosureDepths

Code,7-72Inches

Code,8-84Inches

*

*

12

1600-3000 Amp

*OptionalEnclosureDepths

Code,8-84Inches

Dimensions and Shipping Weights

NEMA 3R (per section)**

Dimensions and Shipping Weights

NEMA 3R (per section)**

Shipping Weights**

Depth

in(mm)

Enclosed

Weight lb(kg)

1600-2000

1600-2000

2500-3000

2500-3000

72(1829)

84(2134)

72(1829)

84(2134)

2395(1089)

2516(1144)

2695(1225)

2739(1245)

800-1200

800-1200

800-1200

2274(1034)

2334(1061)

2395(1089)

Depth

in(mm)

Enclosed

Weight lb(kg)

60(1524)

72(1829)

84(2134)

Shipping Weights**

Amps

Amps

**Singlesectionfortwo-generator

systems;secondsectionrequired

forfourgeneratorsystems

Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. ©2009 Emerson Electric Co.

Publication 3121 R4 © May, 2009 Printed in the U.S.A.

ASCO Power Technologies

50 Hanover Road

Florham Park, NJ 07932

USA

800 800 ASCO

www.ascopower.com

www.ascoapu.com

Emerson Network Power.

The global leader in enabling Business-Critical ContinuityTM.EmersonNetworkPower.com

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