Security fail-unlocked strike 331U80F 331U80F

Product description

Escape Door Strike 331U80 is especially designed to lock doors along escape routes. Our Model 331U80 is also suitable as an additional locking device for fire doors. Thanks to its reliable unlocking under pre-load (max. 5,000 N), it is primarily used in doors which are subject to escape route requirements. The 331U Model Series is guaranteed to work reliably in interlock systems, on soundproof doors and on doors where pressure is expected to act on the electric strike latch due to the structural design.

Overview of Advantages

  • Monitoring contact
  • Recovery diode
  • Reliable unlocking under preload
  • FaFix® latch with 2 mm adjustment range
  • Integrated monitoring and armature contact
  • Sturdy design for demanding requirements


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