Stunt Trip

[Anonymous user]

How do you a stunt trip remotely? What do you have to fit or operate in order to do this? 
just curious because we are fitting these on busway tap offs on a job in the near future?

kind Regards 

[Christian_Bach · Accepted solution]

Hello @Anonymous user ,

Do you mean "shunt trip" ?

If yes, shunt trip is also named "undervoltage coil". It is a specific accessory allowing to open a circuit when it is de-energized, by tripping the breaker.

Basically you have to connect it to a permanent voltage source, and use a switch or contact to open the circuit in case of need. Once the breaker is tripped, you can either reset it locally or through a motor mechanism remotely.

A typical application is emergency stop buttons on machines, because of the "safe" fall back position of the system in case of power or connection issue.

Hope that helps.

Christian