Security lock in motorised design 509X with external control unit, wooden and steel door version 509X601PZ

Backset: 60 mm

Product description

The motorised security lock is used especially in situations where the advantages of motor-powered unlocking have to be combined with the mechanical security requirements of the above-mentioned lock models 309X and 409X. The integrated monitoring contacts

The bolt is retracted by an electric motor and pre-tensioned by a spring mechanism. When the door is closed, the control latch ensures that the pre-tensioned bolt is fully extended and the double action latch blocked which also improves the level of security obtained.

The lock operates according to the fail-unlocked principle and remains locked when the current fails and can only be opened by a key or by operating the internal door handle.

Overview of Advantages

  • Mechanical automatic locking system
  • With double action latch
  • Mechanical self-locking process control between double action lock and control latch
  • Burglary-resistant due to solid bolt with 20 mm throw
  • Burglary resistance up to resistance class 2 can be achieved in suitable door systems
  • Panic function – approval in accordance with EN 179 – approval in accordance with EN 1125
  • Suitable for fire doors
  • Motorised unlocking, so ideally suited for combining with door automation systems
  • Used with front door furniture
  • Changeover function for unlocking with a key from the outside
  • Monitoring functions


  • The locks of the model series 509X have a continuous follower and therefore, require front door furniture (internal handle or panic bar, external knob or bar).
  • The lock is actuated by a card reader, code lock, timer switch, button, etc.
Technical data
Variants that can be ordered