Standard device for single-leaf doors

This door interlock is the compact version of the DL(F)1. The device meets the essential quality features of the larger design, however with reduced type diversity.
The EL(F)1 is often used for the modernisation of lift installations, if no longer available door locks of other competitors have to be replaced.



  • metal housing with high stability
  • transparent cover for optimal function control
  • silent due to buffers in both directions
  • maintenance-free by permanent lubrication with high quality lubricants (up to -30 °C)
  • oiled felt ring at latch bolt for lubrication as well as for sealing against dirt and dust (at X-dimension 10 mm)
  • constrained faulty closure at ELF1 for use in passenger lifts
  • auxiliary switch as normally closed contact and/or normally open contact with galvanically separated
  • contacts possible
  • contacts with solid fine silver plating for a reliable function even at low voltages and currents
  • extensive range of accessories

special features:

  • technology of the DL(F)1 in compact design
  • contact holder insert with switch for locking mechanism and optional double auxiliary switch
  • screw terminal with pressure plate for both-sided line connection
  • options for door switches for monitoring the closing position:
    – internal door switch (not adjustable)
    – external adjustable door switch (PZ73)
  • optional: patented monitoring of the base side emergency release with positive opening safety switch (EN 81-21)
  • connection for bowden cable or cable pull for actuation of unlocking available, e.g.
    application 1:unlocking from the pit ladder (< 1.80 m according to EN 81-20)
    application 2:offset emergency release triangle (< 2 m according to EN 81-20)
    application 3:actuation by bowden cable as alternative to pull rod

Order information codes

Technical data

norms EN 81-20, EN 81-50, EN 81-21, EN 60947-5-1
certificates type approval certificate:
EU-DL 479 (ELF1) and EU-DL 480 (EL1)
switching capacity:
switch for locking mechanism
auxiliary switch .9/…
Ui = 250 V Ith = 10 A Uimp = 4 kV
AC-15: Ue = 230 V Ie = 2 A DC-13: Ue = 200 V Ie = 2 A
AC-15: Ue = 230 V Ie = 2 A DC-13: Ue = 200 V Ie = 0.5 A
short-circuit capacity T 10 A F 16 A
contact material fine silver
actuation torque (typical)
actuation force (typical)
max. force in non-operating state
1.5 Nm at the roller lever
40 N at the pull rod 17.5 at the roller lever (at 35 mm stroke)
5 N at the pull rod
connection by screw terminal max. 2.5 mm²
cable entry M20x1.5 with cable gland
level of protection IP40 (IP20 at .16, .26, .27)
ambient air temperature -10 °C up to +65 °C (special version up to -30 °C)
weight 700 g to 900 g (according to version)



operating instructions

declaration of conformity
DE / EN / FR / 2021

declaration of conformity
DE / EN / IT / 2021

declaration of conformity
DE / EN / CZ / 2021

declaration of conformity
DE / EN / ES / 2021

declaration of conformity
DE / EN / RU / 2021

type examination certificate

type examination certificate