When a "fail-safe" electric door lock looses power its default position is to unlock (or unsecure) the door. Application of power is required to open (secure) the door.
This type of door strike should be used with caution as doors will unlock in the event of a power failure.
Fail-safe door strike - unlocks door during power outage
Power: 12VDC, 400mA
Dimensions: 128mm x 32mm x 38mm (5.04" x 1.26" x 1.50")
