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#26612 - 06/16/03 01:43 PM shunt braker  
hackman  Offline
Junior Member
Joined: Jun 2003
Posts: 1
deer park, new york
what is it and how is it used generally


Work Gear for Electricians and the Trades

#26613 - 06/16/03 01:56 PM Re: shunt braker  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,809
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.

John


John

#26614 - 06/16/03 05:49 PM Re: shunt braker  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
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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