Specifications

Distribution Products Catalog CA08101001E—October 2010 www.eaton.com 13
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16.2
Tr a n s f er Switches
Contactor-Based Designs
Features, Benefits and Functions
Standard Features
●
Auxiliary relay contacts:
●
Source 1 present
1NO and 1NC
●
Source 2 present
1NO and 1NC
●
Switch position
indication contacts:
●
Source 1 position
1NO and 1NC
●
Source 2 position
1NO and 1NC
●
Source 1 and Source 2
sensing:
●
Undervoltage/
underfrequency
●
Overvoltage/
overfrequency
●
Go to emergency
(Source 2)
●
Seven field-programmable
time delays
●
LCD-based display for
programming, system
diagnostics and Help
message display
●
Mimic diagram with source
available and connected
LED indication
●
Time-stamped history log
●
System TEST pushbutton
●
Programmable plant
exerciser—OFF, daily,
7-day interval selectable
run time 0–600 minutes no
load/load with fail-safe
●
Multi-Tap transformer
Optional Features
●
Available surge
suppression device for
power/controller, engine
start circuit, phone and
cable connections
●
Space heater with
thermostat
●
Ammeter—load side
●
Power quality metering
●
Steel cover for controller
●
Open in-phase transition or
time delay neutral
transition
●
ATC-800 controller
available
●
Three-phase rotation
protection
●
Three-phase voltage
unbalance
●
Pretransfer signal contacts
1NO/1NC (with three-
position mechanism)
Commercial Design Highlights
●
UL 1008 front access
●
High withstand and
closing ratings
●
Compact design
Typical Contactor-Based ATC-800 Controller
Multi-Tap
Tr a n s former
Nor mal
Power Source
Load
Lugs
Emergency
Power Source
Controller