MX shunt trip release coil 220 - 240 V, Is the constant voltage supply to the coil is harmful to it?

[PK_1988]

Hello, Everyone!

I couldn't find the information about whether the constant voltage supply to the coil of MX shunt trip release will be harmful to the coil or not. We use 2 MX shun trip releases to shut down the breakers in the event of the fire alarm system activation, so that means the voltage will be constantly present on the MX coils while commissioning the FAS system.

Thanks in advance.

[Manon_Chaboud]

Hello @PK_1988, thank you for your post, we'll come back to you!

[NeiB]

Hi @PK_1988 ,

Hope you are well. 

The MX shunt coil for circuit breakers normally works under voltage, that is, while there is voltage the circuit breaker is open, if there is no voltage the circuit breaker is closed closed.

Tell us which is the model of your circuit breaker so we can check for the MX Shunt information.

Best Regards,

Neide