The Emergency Door Release, with the contact from N/C to N/O. the main function is to override the electrical locking/release devices in case of emergency. With key to replace glass or reset unit.

Specifications:

Dimensions: 88 x 88 x 52 mm

Contact Resistance: 150m

Switch rated: 3A@125VAC

No need to power in, it has a switch for motoring in case of emergency when glass is broken, the contacts change from N/C to N/O.