Door switch and hook lock positive contact

The innovative HZTK is a safety switch with forced actuation which can be used as door switch and switch for locking mechanism. It allows a large sliding area between contact bridge and switch. In addition to the standard design (HZTK-1), a higher version is available (HZTK-2), at which the connection cables can be laid below the switch.


  • safety switch with positive contact
  • use for monitoring the closure position of lift doors resp. as switch for locking mechanism
    for monitoring the blocking of the hook lock on automatic doors
  • enclosure made of thermoplastic, self-extinguishing
  • high contact safety by self-cleaning
  • quiet functioning
  • connection possibilities: sideways and/or underside
  • connecting terminals provided with pressure plate, thus permanent and safe contacting
  • visible contacts through transparent cover
  • integrated fixing screws, captive

Order information codes

Technical data

norms EN 81-20, EN 81-50, EN 60947-5-1
switching capacity Ui = 500 V Ith = 4 A Uimp = 4 kV
AC-15: Ue = 230 V Ie = 2 A DC-13: Ue = 200 V Ie = 2 A
short-circuit capacity T10 A F 16 A
contact material fine silver
actuation force initial force 0.6 N ultimate force 1.2 N
connection by screw terminal max. 2.5 mm²
level of protection IP20
ambient air temperature -30 °C up to +80 °C
installation position any
weight HZTK-1 = 22 g
HZTK-2 = 23 g



declaration of conformity
DE / EN / FR / 2021

declaration of conformity
DE / EN / IT / 2021

declaration of conformity
DE / EN / CZ / 2021