Specifications

22 Distribution Products Catalog CA08101001E—October 2010 www.eaton.com
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16.2
Tr a n s f er Switches
Contactor-Based Designs
Optional Features
●
Available surge protection
device (SPD) for power/
controller, engine start
circuit, phone and cable
connections
●
Automatic transfer
operation with selectable
(via programming) non-
automatic or automatic
retransfer with fail-safe
●
Space heater with
thermostat
●
Digital multi-function
power quality metering
●
Stainless steel cover
for controller
●
Load sequencing contacts
●
Dual ATS
Bypass Isolation Switch
Components
Front Access
Front access is a standard
feature. Source 1 (NORMAL),
Source 2 (EMERGENCY) and
Load connections are set up
as bottom entry. These
connections are located in
their own separate
compartments.
Multi-Tap Transformer
The industry-exclusive Multi-
Tap system voltage selector
allows the transfer switch to
be applied on most system
voltages by proper insertion
of the selector plug.
Drawout ATS and Fixed-
Mounted Bypass
The ATS is designed as a
drawout with the contactor
mounted in a cassette with
wheels. This allows the user
the ability to withdraw,
maintain, inspect and re-
insert the ATS.
The bypass unit is designed
as a fixed-mounted design in
its own separate
compartment.
Improved Safety
The unique Eaton design
includes separation
between control and
power components. The
ATS and bypass isolation
contactors are mounted in
separate compartments with
protective barriers between
them. This design prevents
the possibility of contact
with the rear-mounted
power connections to the
contactors. In addition, the
top and bottom entry have
separate compartment doors.
Ease of Maintenance
Transfer to the bypass power
contactor is easily initiated
and controlled via door-
mounted controls. Once
the transfer to the bypass
contactor is complete, the
ATS contactor is easily racked
out with the compartment
door closed. The ATS
contactor may then be tested
in the isolated position.
Ease of Transfer
The Eaton design allows the
operator to make a quick and
simple transfer from the ATS
power contactor to the
bypass contactor by initiating
the electrically operated
transfer via a two-position
switch. Door-mounted
indicating lights confirm
that a successful transfer
has taken place.
Optional Dual ATS
Capability
The controller on conventional
bypass isolation switches only
controls the ATS contactor.
The Eaton design allows the
switch controller to remain
active in both the ATS and
bypass modes, thus providing
control to either contactor.
This ability of the controller
to remain active and control
the bypass isolation contactor
provides “N+1” redundancy
of a second fully functioning
ATS, a feature unique
to Eaton.
Bypass Isolation—Fixed Bypass Components
Fixed-Mounted
Bypass Contactor
Separate Doors for
ATS and Bypass
Compartments
Drawout ATS
Contactor
Completely
Removed
Front Access for
Top o r Bottom
Entry