16 WL Circuit Breaker Selection and Application Guide
1
See page 85 for field install part numbers.
Bell alarm contact and reset coil
The bell alarm contacts are mechanically activated by the trip
unit solenoid. If a breaker trip condition occurs, the bell alarm
form-C contacts will change state closing or opening a user circuit
wired to the secondary terminal block. The contacts can be locally
reset to their original position by manually resetting the breaker
trip button or through the use of a reset coil that resets the
contacts remotely. See breaker wiring diagram for supply terminal
locations. Non-automatic (manual) reset trip units can not be used
with the reset coil option.
Characteristics table
WL Circuit Breaker
Factory Installed Options
1
Close coil
To remotely close the WL breaker, a close coil must be used with
a momentary electrical source. Only one close coil can be used
per breaker. Charging springs must be charged and breaker open
prior to activating the close coil. See breaker wiring diagram for
supply terminal location.
Breaker push button lock-outs
A finger or hand tool shroud option can be added to the
breaker front cover to isolate the open and close buttons
from unintentional use. Shrouds may be used in combination
or like configuration.
To isolate the open and close buttons from unintentional use,
transparent padlock covers can be installed in lieu of the shroud
option. Two padlocks may be used with a latch diameter of 3/8
inch maximum (padlocks by others).
Racking handle key lock
A draw-out breaker can be key locked (optional) or padlocked
(standard not shown) in three racking positions; connect,
test or disconnect. Key lock cylinders are available in Kirk or
Superior types and uniquely keyed.
Characteristics table
120VAC Range 104 - 127VAC
Close Coil 240VAC Range 208 - 254
AC Operation Power Consumption 120W for 50ms (5% duty cycle)
Breaker closing time 50ms from point of signal
24VDC 14 - 28VDC
48VDC 28 - 56VDC
Close Coil 125VDC 70 - 140VDC
DC Operation 250VDC 140 - 280VDC
Power Consumption 120W for 50ms (5% duty cycle)
Breaker closing time 50ms from point of signal
Available contact configurations Coil ratings
Remote Voltage 240VAC 50/60Hz
Reset Coil Continuous Current 5A
AC Operation Making Current 8A
Breaking Current 5A
Remote Voltage 24, 48,125 or 250VDC
Reset Coil Continuous Current 5A
DC Operation Making Current .4A @ 24, 48,125VDC, .2A @250VDC
Breaking Current .4A @ 24, 48,125VDC, .2A @250VDC
Courtesy of NationalSwitchgear.com
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