Security fail-unlocked strike 331U 331U

Product description

Model with basic equipment.

The 331U Model Series is guaranteed to work reliably in interlock systems, on soundproofed doors and on doors where pressure on the keeper is expected due to the structural design.

Overview of Advantages

  • Sturdy design for demanding requirements
  • Recovery diode
  • Reliable unlocking under preload


  • Can only be used as a supplementary locking device on fire doors
Technical data
Variants that can be ordered