Fail Safe Strike Lock

The ACC520 is a Fail Safe strike lock making it ideal for emergency exits. They work by keeping the door locked until power is cut when an emergency exit button is pressed or the building loses power. When the this happens the doors will unlock allowing staff and visitors to safely leave the building.

Manually unlocking the door could be done with a push to exit button situated next to the door or a wireless key fob.

The slimline mortice mount design has been developed so that it can replace the locking plate in most door frames so you can limit access to almost any door.

Our Handy Rascal relays are ideal for use with our fail secure strike locks as they add extra flexibility and functionality. The HRM100 1ch opto isolating relay would cut power to the lock for as long as the exit button is pressed. To have the door stay open for a short while a HRM200 delay on-off relay could be used to cut power to the lock for up to 20 seconds. For a more advanced solution you might consider using the HRM250 10 function relay. As well as being able to set how long the lock's power is cut for you can also specify a time delay between pressing the exit button and the power being cut. This allows for installations where the exit button isn't situated next to the door.

ACC520 has a holding force of 500kg/1200Lbs.

We also offer Fail Secure strike locks (ACC518) which lock when power is cut making them ideal for security doors.