Panic Door Locks According to EN 1125
4.3 Locking functions
Locking functions
All locks and multipoint locks for doors in emergency and panic exits can always be opened without a
key in the escape direction, even if they are locked. The options for opening the door against the escape
direction vary regarding the respective closing function of the locking part.
For all of the functions described below, the locking parts can be opened from the escape side in the
same manner. The emergency exit locking part can only be opened using the handle on the door.
For systems with a “split spindle square” (functions B and D), the method for opening the door using the
handle on the exterior side may vary.
Change-over function B
The door can only be opened against the escape direction using the handle
after it has been unlocked with the key. After the escape function has been
activated, access against the escape direction is blocked once the door closes
again, and it is not possible to escape back into the building.
Free access function D
The door can only be opened against the escape direction using the handle
after it has been unlocked with the key. After the escape function has been
activated, the door is accessible from both sides and it is possible to escape
back against the escape direction.
Key-operated latch function E
The door can only be opened against the escape direction after it has been
unlocked and it can only be opened with the key. After the escape function
has been activated, access against the escape function is blocked once the
door closes and it is not possible to escape back into the building.
Last update: 11.01.2013 69