Electric Strike Release for Mortice Deadlocks & Sashlocks

Typically in the world of electronic access control, the simple solution to electrically granting access through a door is to utilise a strike release; however this normally means you can only use a latch on the door as most electric door release mechanisms are only designed release once triggered, and then let the latch slip back into place when the door closes again, as it would normally on a normal strike plate. 

With this strike release however, you can now utilise a deadlock in your door, or even a sashlock, which of course comes with security advantages over a tubular latch or similar latch mechanism. 

As demonstrated in the photos, the jaw on these physically rotates almost a full 90° under pressure (when pushing the door) to allow the deadbolt to pass.  The jaw stays in this position until the door is closed, allowing the deadbolt to enter the strike and in doing so, causes the jaw to return to its 'keep' position, where it is then locked into place until triggered to release again.

Please note that it is very important to pay attention to the jaw sizes when selecting a deadlock to use with this release.   The dead bolt itself must not exceed 35mm in height, and the jaw cannot accept any more than 15mm of bolt projection - which coupled with a typical air-gap between the door and the frame of around 2-3mm means you want to be looking at a standard 16-17mm deadbolt projection, not a modern 20mm bolt.

These operate on 12v DC and are rated at 120mA, available in both fail-locked (fail-secure) and fail-unlocked (fail-safe).

What is fail-locked (fail-secure) and fail-unlocked (fail-safe)?

Fail secure / Fail locked mechanisms require power to unlock.  This means in the event of power failure, the door will remain secure but you will not be able to operate the strike to release the door. 

Fail safe / Fail unlocked mechanisms require power to stay locked.  This means in the event of power failure, the door will be insecure, allowing for free escape but preventing you from controlling who has access through the door.