When the magnet is energized it bonds to the armature and locks the door.
Magnetic door locks fire alarm.
Actuation of the fire alarm.
The new sections allow the electromagnetic lock to be released by a door mounted release device i e.
When a fire alarm signal is detected the controlled power to the lock is removed.
Wiring them depends on what smoke heat alarms you have in if you have a fire panel unlikely in domestic unless landlord flats then use the open on alarm volts free relays to drop power to magnets if you have mains smoke heat detectors then they need to have an auxillary volts free output so you can use it again to drop power from magnets on alarm.
And loss of power to the lock.
Magnetic locks also called maglocks or mag locks can offer here a solution.
Panic hardware touch sense bar or latch set with an integral switch which has an obvious method of operation under all lighting conditions and can be operated with one hand.
Models 103 104ra are compact electric locks simple to install on all types of doors.
If the power fails or is interrupted by a fire alarm signal the magnet loses power and releases the door which can then be opened.
Magnetic locks use a strong electrically powered electromagnet to hold the door closed.
An electromagnetic lock is essentially an electromagnet in a housing that is mounted on the door frame and a steel armature mounted on the door.
This system is very flexible so you can select normally open or normally closed trigger from the fire alarm box and 12 vdc or 24vdc to the lock.
To allow access or egress a switch must be provided to de energize the magnet.