The insert lock 12312 is suitable for double-leaf connecting or corridor doors in commercial buildings, such as administrative offices, nursing homes, or secondary exit doors in schools and hotels. For daytime or nighttime operation, the outside handle can be engaged or disengaged via the cylinder with a key turn in the opening direction until it stops. During daytime operation, the door can be accessed from both sides via the handle. The panic function B allows for exit from the panic side at any time.

• For double-leaf doors in combination with the 12100 strike box
• Panic function B with inward/outward adjustable panic side
• Damped, left/right adjustable comfort latch
• Play-free handle mounting through the two-part continuous clamping nut
• Linear handle activation and holding moment due to new spring design
• Central lock case
• 1-turn bolt (projection 20 mm)

No knob cylinders allowed, except for locking cylinders with a return mechanism.