If they are door retainers that hold the door open during normal hours then you just put them through a relay on a plate and a power supply without battery back up then in the event of a fire or activation it drops the power out and the doors close.
If you were inside the room at the time you simply push the door open.
We fit them on the c-tec panels
Bf376 and a bf375p
If you were inside the room at the time you simply push the door open.
We fit them on the c-tec panels
Bf376 and a bf375p
