Accessories
Wiring Diagrams For Remote Operation
For p roper operation, the electrical circuit should be wired as
shown in the diagram. All customer-supplied contacts should
be rated for the currents identified for both the electric op-
All components
above the dashed
line are customer
supplied.
erator and the remote close solenoid. If momentary contact
switches are used, the minimum duration of contact closure
must be 83 milliseconds.
Terminal Block
"B"
Motor
Cut-off
Switch
{shown in
breaker
charged
position)
Ac or de power wiring diagram, remote operation
Sh u nt Trip
B
L
K
B
L
K
The shunt trip accessory is an electronic module which pro
vides remote control capability to open the circuit breaker.
Breaker opening time is 50 milliseconds. When activated, the
shunt trip module sends a signal to the trip unit to open the
breaker. This allows the trip u n it to record, display, distin
guish and communicate (in M icroVersaTripPM™ trip u nits)
that the opening event was initiated by the shunt tri p d evice.
The shunt trip is continuously rated and requires no cut-off
switch. When energized, the shunt trip su24 Vdc
power to the trip unit to power the display.
Shunt trip modules a re available in a wide range of voltages
(from 24 to 250 Vdc, and 24 to 240 Vacl. They meet
UL
re
quirements for operation at 5 5 % of rated ac or 7 5 % of rated
de voltage, making this device suitable for use with Class 1
ground-fault protective devices. Shunt trip modules a re also
available for 480 Vac and 600 Vac control power. A 50 VA
control power transformer, which mounts externally from
the breaker, is required and supplied with these accessories.
These transformers provide an output of 120 Vac, 50/60
Hz, to the supplied shunt trip ( with or without lockout). (See
outline d rawing in the Physical Data section.)
26
J3
P3
Shunt trip module
Table
26.1
Shunt Trip Module
Catalog
Voltage
Number
Rating
(50-60 Hz)
S PST012
12 Vdc
SPST024
24 Vac/dc
SPST048
48 Vac/dc
SPST120
120Vac/125 Vdc
SPST208
208 Vac
SPST240
240Vac/250 Vdc
SPST 480
480 Vac
SPST 600
600 Vac
Maximum
Peak Inrush
Nominal
Operating
Current
Input
Voltage
(AC Amps)
Current
(Volts)
(AC RMS mAl
132
3.0
zoo
26
1.5
140
53
15
110
132
1 5
8 5
2 2 8
1.5
50
264
15
40
528
3.0
65
660
3.0
65
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