DIN preset for left, convertible to right. Panic function B, selectable for inward opening or conversion. These self-locking multipoint locks feature a door handle, panic door fitting, or push bar on the inside of the door. There is also a door handle on the outside of the door. In the unlocked state, the door can be opened from both sides. In the locked state, the door cannot be opened from the outside, but can always be opened from the inside via the door handle, panic door fitting, or push bar (panic function selectable for opening), retracting the main bolt and the two locking bolts. When the door closes, the lock automatically locks (self-locking). The square (nut) is split in panic function B. This panic function is suitable for doors that need to be opened from the outside at times (day operation). Day operation can be activated via the cylinder with a key turn in the opening direction until it hits the stop, then the door handle on the outside is engaged. For entrance and apartment exit doors, security, emergency exit, and fire protection doors.