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#26612 - 06/16/03 10:43 AM shunt braker
hackman Offline
Junior Member

Registered: 06/16/03
Posts: 1
Loc: deer park, new york
what is it and how is it used generally

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#26613 - 06/16/03 10:56 AM Re: shunt braker
HotLine1 Offline


Registered: 04/03/02
Posts: 6791
Loc: Brick, NJ USA
Basically a shunt trip CB is...
A device (CB) that can be "shut off" from a remote location.

The CB has a coil or solenoid installed that will shut the CB "off" when power is applied to the coil or solenoid. THis option is usually factory installed, but is a field installable item on some large frame (amperage) CB's.

The control voltage can range from 12 volts to 480 volts normally.

There are numerous uses for ST CB's, computer/data rooms, gas stations, elevators, cooking equipment, etc.


#26614 - 06/16/03 02:49 PM Re: shunt braker
Bjarney Offline

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
Remember that a shunt-trip accessory for a circuit breaker requires a (momentary) source of power to operate. An "undervoltage-release" accessory for a circuit breaker requires removal of power to trip.


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