Door Holder Power Supply at alfredamevanso blog

Door Holder Power Supply. Primary application includes holding and releasing. In the event of a fire the magnets will be released to close the doors.

SEM7820 689 LCN Door Holders SECLOCK
from www.seclock.com

Power for a 24v door release magnet system controllable from a fire alarm control panel. It releases the armature plate allowing the door closer to close the door when the. Primary application includes holding and releasing.

SEM7820 689 LCN Door Holders SECLOCK

Door Holder Power Supply The bf377 is designed to provide continuous d.c.the tr4 is a 4a power supply unit that has been designed to hold open door magnets. The unit can operate as an “automatic door release system” (adrs) or respond to a secondary control. For automatic release, the power supply.