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Experience,
innovationand reliability
Contactor-basedautomatic transfer switches
Open transition
Closed transition
Delayed transition
Bypass isolation 401200A
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A history of experience,innovation and reliability
As a premier industrialmanufacturer, Eatons electricalbusiness is one of the worldsleading suppliers of electricalcontrol products and powerdistribution equipment withyearly sales of over $2.5 billion.Eatons electrical productsinclude a complete line oflow and medium voltageassemblies from substations,
switchgear and panelboardsto loadcenters, transformersand safety switches. Theseproducts are used whereverthere is a demand for electricalpower in residences, high-riseapartment and office buildings,commercial sites, hospitalsand factories.
Built with experience
For over a century, Eaton hasfocused on providing qualitypower-centric products andservices. In todays businessenvironment, customers like youare driving our transformationfrom a leading global electricalcomponents provider into acustomer-centric solutionspartner who understands yourbusiness. We do this throughin-depth collaboration with
customers and subject matterexperts studying the issuesinherent to the electrical powerdistribution and control systems.
Eaton is one of the pioneeringelectrical manufacturers andhas been focused on providingreliable backup power systemswith transfer switch equipmentfor over 75 years.
Powered with innovation
Eaton continues to meetchanging industry needs byproviding a broad range ofautomatic transfer switches.These switches may be groupedinto a basic, enhanced orpremium set of features thatwill meet your applicationrequirements. Eaton has usedindustry-leading breaker-baseddesigns for years and now hasa line of contactor-based designs.
These designs can be matchedto a family of automatic transferswitch controllers that will meetyour specific needs. Identifyyour application, define yourneeds, and select the solutionfrom Eaton.
Delivered with reliability
Power outages due to badweather or utility failure havegrown increasingly costly andmore disruptive to businessesand homeowners. A backuppower system will keep yourcomputers, security system,heating or refrigeration systemcash registers, home health cequipment, or any system thauses electric power energizedand operational. The demands
for reliability have increased.Eaton meets those expectatioby the stringent UL 1008automatic transfer switcheswith a world-class productdelivery system.
Eaton will provide the individutransfer switch built to exactinstandards or supply the sametransfer switch in an integratelineup with other Eaton gear.For startup service, applicationsupport and emergency suppocall Eaton Electrical Services &Systems at 1-800-498-2678.
Built with years of experiencePowered with innovation
Delivered with reliability
EATON CORPORATIONContactor-based automatic transfer switches
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Transfer Switch Standards
UL 991 UL standards for safety tests for safety-relatedcontrols employing solid-state devices
UL 1008 Dielectric test
NEMAICS 109.21 Impulse withstand test
IEEE472 (ANSI C37.90A) Ringing wave immunity/voltage surge test
EN55022 (CISPR11): Conducted and radiated emissions
EN61000-4-2 Class B Level 4 ESD immunity test
EN61000-4-3 (ENV50140) Radiated RF,
electromagnetic field immunity testEN61000-4-4 Electrical fast transient/burst immunity test
EN61000-4-5 IEEE C62.41: Surge immunity test
EN61000-4-6 (ENV50141) Conducted immunity test
EN61000-4-11 Voltage dips and interruption immunity
FCC Part 15 Conducted/radiated emissions (Class A)
CISPR 11 Conducted/radiated emissions (Class A)
IEC 1000-2 Electrostatic discharge test
IEC 1000-3 Radiated susceptibility tests
IEC 1000-4 Fast transient tests
IEC 1000-5 Surge withstand tests
CSAconformance C22.2 No. 178-1978 (reaffirmed 1992)
UL 869A Reference standard for service equipment
UL 50/508 EnclosuresNEMA ICS 1 General standards for industrial control systems
NEMA ICS 2 Standards for industrial control devices,controllers and assemblies
NEMA ICS 6 Enclosures for industrial controls and systems
NEMA ICS 10-1993 AC automatic transfer swi tches
ANSI C33.76 Enclosures
NEC517, 700, 701 and 702 National Electrical Code
NFPA70 National Electrical Code
NFPA 99 Health care facilities
NFPA 101 Life Safety Code
NFPA 110 Emergency and standby power systems
EGSA 100S Standard for transfer switches
CSA C22.2 No. 178-1978 Canadian Standards Association
Solutions overview
Eatons automatic transferswitches are designed toprovide you with a full offeringof transfer switches to solveyour industry and applicationneeds. Eaton offers theindustrys most complete lineof contactor-based, breaker-based, and Magnum-basedtransfer switches.
This wide range of selectionsenables you to identify yourapplication needs and thebenefits you expect to realize,and then choose the solutionbest for you. The cornerstoneof these offerings is theproven design experienceand reliability built into allEaton transfer switches.
Basic solution
The basic solution offers atransfer switch that meets themost basic and cost-effectiverequirements for an automatic,manual or non-automatictransfer switch.
This solution set allows you tochoose from either a contactor-based or a breaker-based designand match that power-switchingdevice with our basic transferswitch controller.
Enhanced solution
The enhanced solution meets allof the basic automatic transferswitch needs. In addition tomeeting the most basic transferswitch requirement, theenhanced solution allows foroptimal control and improvedflexibility. This solution setallows you to choose from
either a contactor-based ora breaker-based design.
Premium solution
The premium solution is offeredfor those applications requiringcontinuity of power during thetransfer and routine test.This solution set offers bothcontactor-based and breaker-based designs with drawoutcapability.
Switch types available
Open transition
Closed transition
Delayed transition
Bypass isolation
Contactor-based transfer switchesSwitch typeoverview and standards
EATON CORPORATIONContactor-based automatic transfer switches
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Identify your application Define your needs Determine your right solution Select Eaton
ATS Solution Guide: Highlighting Contactor-Based Designs
Eaton Solution Customer Benefits Key Features Agriculture
Premium solution
Continuity of powerduring retransfer
Critical load transferapplications
Maximum controland ultimate flexibility
Maximum investment
Greater reliability to avoid lost revenue and production timeContinuity of power through synchronization of sourcesLower energy costs realized through managing demand chargesNo power interruption during switch inspection or testing
Soft load ramping30 cycle, 85 kA short-time ratingsIntegral overcurrent protection availableDrawout design
Greater reliability to avoid lost revenue and production timeSafe preventative maintenance without power interruptionNo power interruption during switch inspection or testing
30 cycle, 85 kA short-time ratingsIntegral overcurrent protection availableIntegrated service entrance solutionInterchangeable bypass and switch devicesDrawout design
Greater reliability to avoid lost revenue and production timeSafe preventative maintenance without power interruptionNo power interruption during switch inspection or testing
Interchangeable bypass and switch devicesDrawout design standardFront access standardDual ATS
Greater reliability to avoid lost revenue and production timeLower energy costs realized from managing demand chargesNo power interruption during generator set testing
30 cycle, 85 kA short-time ratingsIntegral overcurrent protection availableIntegrated service entrance solutionDrawout design available
Greater reliability to avoid lost revenue and production timeLower energy costs realized from managing demand charges
No power interruption during generator set testing
Paralleled in less than 100 msProgrammable field settings
Communication capability
Enhanced solution
Momentary lossof power acceptableduring retransfer
Optimal controland improved flexibility
Moderate investment
Ability to transfer large motor or inductive loadsAllows loads to re-energize after transfer at normal inrush currentsAvoid higher starting currents, which increase energy costs
30 cycle, 85 kA short-time ratings on power circuit breakerIntegral overcurrent protection availableIntegrated service entrance solution
Ability to transfer large motor or inductive loadsAllows loads to re-energize after transfer at normal inrush currentsAvoid higher starting currents, which increase energy costs
Multi-tap transformer voltage selection availableEasily adjustable time delays for the neutral position
Ability to transfer large motor or inductive loadsAllows loads to re-energize after transfer at normal inrush currentsAvoid higher starting currents, which increase energy costs
30 cycle, 85 kA short-time ratings on power circuit breakerIntegral overcurrent protection availableIntegrated service entrance solutionDrawout design available
Simplest of transfer switching solutionSafe manual transfer under load
Equal withstand, interrupting and closing ratingsIntegral overcurrent protection availableIntegrated service entrance solution
Open transitionBreaker-based(1001000A)
Basic solution
Momentary loss
of power acceptableduring retransfer
Least critical loadtransfer applications
Basic control and flexibilityMinimum investment
Most simple operationMost cost-effectiveApplication flexibility
Most compact offeringMulti-tap transformer voltage selection available
Open transitionContactor-base(100600A)
Permits safe and convenient non-auto transfer under load 30 cycle, 85 kA short-time ratings on power circuit breakerIntegral overcurrent protection availableDrawout design available
Permits safe and convenient manual transfer under loadMost cost-effective manual transfer
Equal withstand, interrupting and closing ratingsIntegral overcurrent protection availableDeadfront design
Special solution Continuity of power for UPS applications Required UPS bypass signal prevents unauthorized bypassHigh interrupting ratingsReliable, manually initiated electrical operation
Emphasis in yellow bars.
Make the right decision:
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mercial Industrial Utilities Institutions Government Communications Data Center
Soft loadMagnum-based(6005000A)
Soft loadMagnum-based(6005000A)
Soft loadMagnum-based(6005000A)
Soft loadMagnum-based(6005000A)
Soft loadMagnum-based(6005000A)
transitions isolationum-based5000A)
Closed transitionBypass isolationMagnum-based(2005000A)
Closed transitionBypass isolationMagnum-based(2005000A)
Closed transitionBypass isolationMagnum-based(2005000A)
Closed transitionBypass isolationMagnum-based(2005000A)
Closed transitionBypass isolationMagnum-based(2005000A)
Closed transitionBypass isolationMagnum-based(2005000A)
transitions isolationctor-based200A)
Closed transitionBypass isolationContactor-based(1001200A)
Closed transitionBypass isolationContactor-based(1001200A)
Closed transitionBypass isolationContactor-based(1001200A)
Closed transitionBypass isolationContactor-based(1001200A)
Closed transitionBypass isolationContactor-based(1001200A)
Closed transitionBypass isolationContactor-based(1001200A)
transitionum-based5000A)
Closed transitionMagnum-based(2005000A)
Closed transitionMagnum-based(2005000A)
Closed transitionMagnum-based(2005000A)
Closed transitionMagnum-based(2005000A)
Closed transitionMagnum-based(2005000A)
Closed transitionMagnum-based(2005000A)
transitionctor-based
200A)
Closed transitionContactor-based
(401200A)
Closed transitionContactor-based
(401200A)
Closed transitionContactor-based
(401200A)
Closed transitionContactor-based
(401200A)
Closed transitionContactor-based
(401200A)
Closed transitionContactor-based
(401200A)ed transitioner-based000A)
Delayed transitionBreaker-based(305000A)
Delayed transitionBreaker-based(305000A)
Delayed transitionBreaker-based(305000A)
Delayed transitionBreaker-based(305000A)
ed transitionctor-based200A)
Delayed transitionContactor-based(401200A)
Delayed transitionContactor-based(401200A)
Delayed transitionContactor-based(401200A)
Delayed transitionContactor-based(401200A)
ransitionum-based5000A)
Open transitionMagnum-based(2005000A)
Open transitionMagnum-based(2005000A)
Open transitionMagnum-based(2005000A)
Open transitionMagnum-based(2005000A)
ransitioner-based000A)
Open transitionBreaker-based(301000A)
Open transitionBreaker-based(301000A)
Open transitionBreaker-based(301000A)
Open transitionBreaker-based(301000A)
ransitionctor-based200A)
Open transitionContactor-based(401200A)
Open transitionContactor-based(401200A)
Open transitionContactor-based(401200A)
Open transitionContactor-based(401200A)
utoum-based5000A)
Non-autoMagnum-based(2005000A)
al or non-autoer-based000A)
Manual or non-autoBreaker-based(301000A)
enance bypasser-based000A)
Maintenance bypassBreaker-based(1001000A)
Maintenance bypassBreaker-based(1001000A)
Maintenance bypassBreaker-based(1001000A)
Maintenance bypassBreaker-based(1001000A)
Maintenance bypassBreaker-based(1001000A)
Maintenance bypassBreaker-based(1001000A)
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UL 1008 Withstand and Close-on Ratings (kA)
UL 1008 Ampere Rating
480V 600V
Any
Breaker
Specific
Breaker
Any
Breaker
Specific
Breaker
100 10,000 30,000 10,000 22,000
200 10,000 30,000 10,000 22,000
260 35,000 50,000 35,000 42,000
320 35,000 50,000 35,000 42,000
400 35,000 50,000 35,000 42,000
600 50,000 65,000 50,000 65,000
800 50,000 65,000 50,000 65,000
1000 50,000 65,000 50,000 65,000
1200 50,000 65,000 50,000 65,000
Product description
The automatic open transitioncontactor-based transfer switchis the most basic design thatwill provide a fully functioningautomatic transfer switch.An automatic open transitiontransfer switch may be usedfor those applications whereemergency backup power isrequired but a momentary lossof power is acceptable on theretransfer from emergency
to normal.
Electrical ratings
401200A
Up to 600V
Two-, three- or four-pole
NEMA 1, 3R
100% rated
Commercial design highlights
UL 1008 front access
High withstand andclosing ratings
Compact design
FeaturesStandard features
Voltage and frequencysensing
Multiple field-programmableor settable time delays
Switch position indication
Source availability indication
Source 1 and 2auxiliary contacts
Mimic diagram Programmable plant exercis
System test pushbutton
Optional features
Surge suppression options
Spacer heater
Metering options
Stainless steel coverfor controller
Dimensions in Inches (mm)
Ampere Rating Height Width Depth Weight in lbs (k
40100 38.68 (982.4) 18.31 (465.1) 13.34 (339.0) 156 (71)150200 38.68 (982.4) 18.31 (465.1) 13.34 (339.0) 164 (74)
225400 48.74 (1238.0) 25.25 (641.4) 13.84 (339.0) 260 (118)
6001200 79.35 (2015.5) 25.25 (641.4) 22.46 (570.5) 600 (272)
Subtract 20 lbs. for two-pole and add 50 lbs. for four-pole.
Contactor-based transfer switchesSwitch typeopen transition
Contactor-Based ATS with ATC-300 Controller
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UL 1008 Withstand and Close-on Ratings (kA)
UL 1008 Ampere Rating
480V 600V
Any
Breaker
Specific
Breaker
Any
Breaker
Specific
Breaker
100 10,000 30,000 10,000 22,000
200 10,000 30,000 10,000 22,000
260 35,000 50,000 35,000 42,000
320 35,000 50,000 35,000 42,000
400 35,000 50,000 35,000 42,000
600 50,000 65,000 50,000 65,000
800 50,000 65,000 50,000 65,000
1000 50,000 65,000 50,000 65,000
1200 50,000 65,000 50,000 65,000
Product description
The automatic closed transitioncontactor-based transfer switchis the most basic design thatwill connect both sourcesbefore the transfer occurs.An automatic closed transitiontransfer switch may be usedfor those applications in whichemergency backup power isrequired but a momentary lossof power is not acceptable onthe retransfer from emergency
to normal. Closed transitionpermits periodic testing of theemergency source withoutinterrupting power to the loads.
Electrical ratings
401200A
Up to 600V
Two-, three- or four-pole
NEMA 1, 3R, 12
100% rated
Commercial design highlights
UL 1008 three-positioncontactors
High withstand andclosing ratings
Compact design
FeaturesStandard features
Voltage and frequencysensing
Multiple field programmabletime delays
Switch position indication
Source availability indication
Source 1 and 2auxiliary contacts
Mimic diagram Programmable plant exercise
System test pushbutton
Load shed from emergency
Optional features
Two- or four-positiontest switch
Multi-meter options available
Selectable automatic ornon-automatic operation
Space heaters
Surge suppression Remote communications
Dimensions in Inches (mm)
Ampere Rating Height Width Depth Weight in lbs (kg)
40100 38.68 (982.4) 18.31 (465.1) 13.34 (339.0) 156 (71)
150200 38.68 (982.4) 18.31 (465.1) 13.34 (339.0) 164 (74)
225400 48.74 (1238.0) 25.25 (641.4) 13.84 (339.0) 260 (118)
6001200 79.35 (2015.5) 25.25 (641.4) 22.46 (570.5) 600 (272)
Subtract 20 lbs. for two-pole and add 50 lbs. for four-pole.
Contactor-based transfer switchesSwitch typeclosed transition
Closed Transition ATS with ATC-800 Controller
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Product description
A bypass isolation transferswitch may be used to provideemergency power to life safetyand other critical loads wheremaintenance of the maintransfer switch, withoutinterruption of power to the load,is either desirable or required.
Electrical ratings
1001200A Up to 600V
Two-, three- or four-pole
NEMA 1 and 3R enclosures
100% rated
Commercial design highlights
UL 1008
Easy access
Top/bottom entry
Isolated entry exit area
Improved safety
Compartment barriers
Single-motion rackwith door closed
Extended battery backup
Dual drawout ATS
Installation flexibility
Field entry/exit modificatiofor top/bottom/both
Interchangeable contacto
Features
Reliable microprocessor logic
Designed to safely withstanfault currents
Eliminates need for comple
interlocks
Drawout cassette design
No service interruption whebypassing to the same sour
Drawout capabilities on botATS and bypass portions
Ability to test powerswitching elements duringdrawout process
Power switching devicescompletely interchangeablebetween ATS andbypass portions
Capability to have adual ATScontroller willwork with the ATS andbypass contactor
Open or closed transition
UL 1008 Withstand and Close-on Ratings (kA)
UL 1008 Ampere Rating
480V 600V
AnyBreaker
SpecificBreaker
AnyBreaker
SpecificBreaker
100 10,000 30,000 10,000 22,000
200 10,000 30,000 10,000 22,000
260 35,000 50,000 35,000 42,000
320 35,000 50,000 35,000 42,000
400 35,000 50,000 35,000 42,000
600 50,000 65,000
800 50,000 65,000
1000 50,000 65,000
1200 50,000 65,000
Consult Factory
Dimensions in Inches (mm)
Ampere Rating Height Width Depth Weight in lbs (k
40200 90.00 (2286.0) 46.00 (1168.4) 32.00 (813.0) 1800 (817)
300400 90.00 (2286.0) 46.00 (1168.4) 32.00 (813.0) 1800 (817)
500600 90.00 (2286.0) 46.00 (1168.4) 32.00 (813.0) 1800 (817)
6001200 90.00 (2286.0) 46.00 (1168.4) 32.00 (813.0) 1850 (840)
Bypass Isolation Switch with ATC-300 Controller
Contactor-based transfer switches
Switch typebypass isolation
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Product description
The automatic transfer switchcontroller is a key component
within the automatic transferswitch. It provides theintelligence to sense theproper conditions to initiate atransfer and a retransfer of thecontactor. Eatons automatictransfer switches come with thedesign flexibility of being appliedwith one of three controllers.All three controllers providethe basic functions needed toperform an automatic transfer.
ATC-100 controller
General description
The ATC-100 controller was
designed as a multi-functionmicroprocessor open transitioncontroller with simplifiedcustomer settings. The frontpanel interface displays sourceavailability and connection statusas well as convenient enginestart and test buttons. Controllerparameters are set via jumperson the printed circuit board.
Design highlights
Mimic diagram with sourceavailable and connectedLED indications
Field selectable fixedtime delays
Permits system testing via afront screen test pushbutton
Complies withUL 1008 / CSA 22.2-178
Generator test selectableOFF, 7, 14, 28-day interval
ATC-300 controller
General description
From installation to programmingto usage, the ATC-300 opentransition controller wasdesigned with operationalsimplicity in mind. The user-friendly front panel interfacesimplifies routine operation,programming, data presentationand setting adjustments. AnLCD-based display provides theflexibility of a back-lit display
for enhanced visibility.
Design highlights
LCD-based display forprogramming, systemdiagnostic and helpmessage display
Mimic diagram with sourceavailable and connectedLED indications
Stores customer/factoryestablished parameters innonvolatile memory
Field-programmabletime delays
Displays real-time andhistorical information witha time-stamped history log
Permits system testing via afront screen test pushbutton
Programmable plantexerciserOFF, daily, 7, 14,28-day interval programmablerun times
Complies withUL 1008 / CSA 22.2-178
ATC-800 Controller
General Description
The ATC-800 closed transitioncontroller was designed withoperational simplicity in mind.The user-friendly front panelinterface simplifies routineoperation, programming,data presentation and settingadjustments. An LCD-baseddisplay provides the flexibilityof a back-lit display for
enhanced visibility.
Design Highlights
LCD-based display forprogramming, systemdiagnostic and helpmessage display
Mimic diagram with sourceavailable and connectedLED indications
Stores customer/factoryestablished parametersin nonvolatile memory
Field-programmable
time delays Displays real-time and
historical information witha time-stamped history log
Permits system testing via afront screen test pushbutton
Programmable plantexerciserOFF, daily, 7, 14,28-day interval selectablerun times
Communicate via Modbuscommunication protocol
Complies withUL 1008 / CSA 22.2-178
Load monitoring, delayed,in-phase and closed transition
Contactor-Based Design ATS Showing Optional Controllers Available
Contactor-based transfer switches
Controller features
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Automatic Transfer Switch Controllers
Description ATC-100 ATC-300 ATC-800
System Application Voltage 120/240V, 208V single-phase Up to 600 Vac Up to 600 VacVoltage Specifications
Voltage measurements of: Source 1 and 2 Source 1 and 2VAB, VBC and VCA Source 1, 2 and LoadVAB, VBC and VC
Voltage measurement range 120480 Vac 0790 Vac rms 0700 Vac rms
Operating Power 95145 Vac 65145 Vac 65145 Vac
Frequency Specifications
Frequency measurements of: Source 2 Source 1 and 2 Source 1 and 2
Frequency measurement range 5060 Hz 4070 Hz 4080 Hz
Environmental Specifications
Operating temperature range 20 to 70C 20 to 70C 20 to 70C
Storage temperature range 30 to 85C 30 to 85C 30 to 85C
Operating Humidity (Non-Condensing) 0 to 95% relative humidity (non-condensing) 0 to 95% relative humidity (non-condensing) 0 to 90% relative humidity (non-condensi
Operating Environment Resistant to ammonia, methane, nitrogen,hydrogen and hydrocarbons
Resistant to ammonia, methane, nitrogen,hydrogen and hydrocarbons
Resistant to ammonia, methane, nitrogenhydrogen and hydrocarbons
Front Panel Indication
Mimic diagram with LED indication Unit status. Source 1 and 2available andconnected (5 total)
Unit status. Source 1 and 2available andconnected (5 total)
Automatic, test and program mode.Source 1 and 2available, connectedand preferred. Load energized (10 total)
Main display N/A LCD-based display LED display
Display language N/A English, French English
Communications Capable N/A N/A PONI/INCOM
Enclosure Compatibility NEMA 1 and 3R NEMA 1, 12 and 3R, UV resistant faceplate NEMA 1, 12, 3R and 4X UV resistantfaceplate
Programming Selections
Time delay normal to emergency Selectable 2 or 15 seconds 01800 seconds 01800 seconds
Time delay emergency to normal 5 minutesfixed 01800 seconds 01800 seconds
Time delay engine cooldown 1 minutefixed 01800 seconds 01800 seconds
Time delay engine start 3 secondsfixed 0120 seconds 0120 seconds
Time delay neutral N/A 0120 seconds 0120 seconds or based on load voltagedecay of 2%30% of nominal
Time delay Source 2 fail N/A 06 seconds 06 seconds
Time delay voltage unbalance N/A 1030 seconds N/A
Voltage unbalance three-phase N/A 0 or 1 (1 = enabled)
Percent of unbalanced voltage dropout N/A 5%20% (DO) dropout -2% to 3% (PU) N/A
Phase reversal three-phase N/A OFF, ABC, CBA N/A
In-phase N/A 0 or 1 (1 = Enabled) N/A
Load sequencing N/A N/A Up to 10 devices (via sub-network)
Pre-transfer signal N/A 1120 seconds (Form C contact) 0120 seconds up to 10 devices(via sub-network)
Plant exerciser Selectable day, OFF, 7, 14, 28-day interval,15 minutes run time, no load
SelectableOFF, daily or 7, 14, 28-dayintervals, 0600 minutes, load or no load
Selectabledisabled or 7 day interval,0600 minutes, load or no load
Preferred source selection N/A N/A Source 1 or 2 or none
Commitment to transfer in TDNE N/A N/A Enabled or disabled
Re-transfer mode N/A N/A Automatic or manual
Auto daylight saving time adjustment N/A 0 or 1 (1 = Enabled)
System selection Utility/generator or dual utility Utility/generator or dual utility Utility/generator or dual utility ordual generator
Closed transition frequency difference N/A N/A 0.03.0 Hz
Closed transition voltage difference N/A N/A 15%
ote:N Features are order-specific. Not all features are supplied as standard.
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AT C 3 C2 X 3 0400 X S U
Type
AT= AutomaticBI = Bypass
isolation
open
transition
CB= Bypassisolation
closed
transitionCT= Closed
transition
DT= Delayedtransition
Logic
1 = ATC-1003 = ATC-3008 = ATC-800
Switch
E = DrawoutX = Fix mount
Number of Poles
2 = Two-pole3 = Three-pole4 = Four-pole
Orientation
C= Contactor
Mechanism
C1 = Closedtransition
C2= Two-position
C3= Three-position
Amperes
0040 = 40A0080 = 80A0100 = 100A0150 = 150A0200 = 200A0225 = 225A0260 = 260A
0400 = 400A0600 = 600A0800 = 800A1000 = 1000A1200 = 1200A
Voltage
A = 120V, 60 HzB = 208V, 60 HzE = 600V, 60 HzG = 220V, 50 HzH = 380V, 50 HzK = 600V, 50 HzM= 230V, 50 Hz
N= 401V, 50 HzO = 415V, 50 HzW= 240V, 60 HzX = 480V, 60 HzZ = 365V, 50 Hz
Enclosure
K = OpenS =NEMA 1J= NEMA 12R= NEMA 3R
Certification
U= UL listedR= UL recognized
NeutralConnection
NormalPower Source Logic Panel
EmergencyPower Source
TransferMechanism
Load Lugs Space Heater
Automatic Transfer Controller(ATC-100)
Monitors power sources
Initiates transfer adjustablesettings for time delaysvia jumpers
Optional ATC-300 controller
Space heater (optional)
Transfer mechanismtwo-position mechanism,motor operated
Typical Contactor-Based Design Components
Contactor-based transfer switches
Ordering information and basic componentsContactor-Based Automatic Transfer Switch Catalog Numbering System
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Integrated Solutions
Minimize initial equipmentcosts, reduce installation time,and increase system reliability.These are goals of all involvedin placing electrical distributionequipment in servicefrom thedesign engineer to the electricalcontractor, and especially theend user of the equipment.
Eaton believes that the transferswitch equipment is an
integral part of the distributionequipment. This fundamentalbelief is why Eaton offers varioustypes of transfer switches forthe design engineer, electricalcontractor and the user tochoose from. Eaton offerscontactor-based, molded-caseand circuit breaker style switches.
All Eaton transfer switchesare designed to meet therequirements set forth byUL 1008; however, all transferswitches are not created equal.You can be assured of safeand reliable operation from
all types of transfer switchesthat Eaton offers.
Satellite Facility Locations
Contactor-based transfer switches
Integrated solutions
Automatic Transfer Switch Integrated into a Switchboard Lineup
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Eatons Electrical Sector isa global leader in powerdistribution, power quality,control and automation, andmonitoring products. Whencombined with Eatons full-scaleengineering services, theseproducts provide customer-driven PowerChainsolutionsto serve the power systemneeds of the data center,industrial, institutional, publicsector, utility, commercial,
residential, IT, mission critical,alternative energy and OEMmarkets worldwide.
PowerChain solutions helpenterprises achieve sustainableand competitive advantagesthrough proactive managementof the power system as astrategic, integrated assetthroughout its life cycle,resulting in enhanced safety,greater reliability and energyefficiency. For more information,visit www.eaton.com/electrical.
Eaton CorporationElectrical Sector1111 Superior Ave.Cleveland, OH 44114United States877-ETN-CARE (877-386-2273)Eaton.com
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