Specifications

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16.6
Tr a n s f er Switches
Standard and Optional Features
29J. Automatic Transfer or
Automatic Transfer With Non-
Automatic Retransfer Operation
Provides a field-selectable
programmable set point that
permits the transfer switch to
operate in one of the following
two transfer modes (A or B):
A. Fully automatic
operation.
B.
Automatic engine/
generator startup
and
automatic transfer
operation from Source 1
to Source 2. Manual
pushbutton operation is
required to initiate the
retransfer operation
and engine/generator
shutdown. The
pushbutton for manual
retransfer operation is
included. This is fail-
safe protected.
10. Preferred Source Selector
Provides a means to
designate either Source 1 or
Source 2 as the “Preferred”
source. The “Preferred”
source is the source that the
transfer switch will connect
the load to if it is available.
Note: This is a programmable
software feature not an actual
switch.
10B. Preferred Source Selector
Provides a programmable
source selector for use on
systems comprised of dual
utility or utility and engine/
generator power sources.
10D. Preferred Source Selector
Provides a programmable
source selector for use on
systems comprised of dual
engine/generator power
sources. (Dual engine starting
circuits are provided.)
Indications and
Status Display
12C. Source 1—Load Connected
Provides a green indication
that indicates the load is
connected to Source 1
when lit.
12D. Source 2—Load Connected
Provides a red indication
that indicates the load is
connected to Source 2
when lit.
12G. Source 1—Present
Provides a white or amber
indication “Depending on the
Controller” that Source 1 has
power; however, this does
not indicate whether Source
1 is acceptable.
12H. Source 2—Present
Provides an amber indication
that Source 2 has power;
however, this does not
indicate whether Source 2 is
acceptable.
Overcurrent Trip Indication
Available only with integral
overcurrent protection
(Feature 16) (shown on
automatic transfer controller
display).
12L. Source 1 Trip Indication
The automatic transfer
controller display will read
“Lockout” if the Source 1
circuit breaker is in the
“tripped” position.
12M. Source 2 Trip Indication
The automatic transfer
controller display will read
“Lockout” if the Source 2
circuit breaker is in the
“tripped” position.
Customer Outputs
14. Relay Auxiliary Contacts
14C. Source 1 Present
Provides 4 Form C relay
auxiliary contacts. The relay is
energized when Source 1 is
present.
14D. Source 2 Present
Provides 4 Form C relay
auxiliary contacts. The relay
is energized when Source 2
is present.
14E. Source 1 Available
Provides 1 Form C relay
auxiliary contact. The relay is
energized when Source 1 is
available and within the
controller’s programmable
set points.
14F. Source 2 Available
Provides 1 Form C relay
auxiliary contact. The relay is
energized when Source 2 is
available and within the
controller’s programmable
set points.
14G. Source 1 Present
Provides 2 Form C relay
auxiliary contacts. The relay is
energized when Source 1 is
available and within the
controller’s programmable
set points.
14H. Source 2 Present
Provides 2 Form C relay
auxiliary contacts. The relay is
energized when Source 2 is
available and within the
controller’s programmable
set points.
15. Switch Position
Indication Contact
Provides a contact that
indicates if the power
switching device is in the
“open” or “closed” position.
15E. Source 1 Position
Indication Contact
Provides 1 Form C
contact that indicates the
position of the Source 1
power switching device.
15F. Source 2 Position
Indication Contact
Provides 1 Form C contact
that indicates the position
of the Source 2 power-
switching device.
15M. Source 2 Load
Shed Contacts
Provides 4 Form C contacts
to initiate a load circuit
disconnect while on Source
2. This gives the user the
capability of selectively
choosing not to run certain
loads while on Source 2.
35A. Pretransfer Signal With
1 Form C Contact
Provides a signal prior to
the transferring of the load.
Will not transfer until the
programmable delay set point
in the controller is reached. If
both sources are not available,
this option will ignore the time
delay set in the controller.