EL(F)1 EN 81-21

for single-leaf doors

The door interlock EL(F)1 in the version EN 81-21 is particularly suited for lifts with insufficient protective space in the top floor headroom above the lift car or in the shaft pit. By the monitoring of the emergency release triangle, the access to the shaft is controlled with a positively opening safety switch.

Door interlock ELF1-L-X15(u).10.2/11

Door interlock ELF1-L-X15(u).10.2/11

Dimensions ELF1-R-X20(u).10.2/11



  • 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
  • contacts with solid fine silver plating for a reliable function even at low voltages and currents
  • auxiliary switch with one contact
  • extensive range of accessories

special features:

  • • technology of the DL(F)1 in compact design
  • monitoring of the emergency release base side with positive opening safety switch (EN 81-21)
  • contact holder insert with switch for locking mechanism and optional double auxiliary switch
  • screw terminal with pressure plate for both-sided line connection
  • optional: 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)
UK-DL 479 (ELF1) and UK-DL 480 (EL1)
switching capacity:
switch for locking mechanism
monitoring switch
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 le = 2 A
AC-15: Ue = 230 V Ie = 2 A DC-13: Ue = 200 V Ie = 0.5 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 N 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 entry
level of protection IP40
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

Declaration of conformity

Declaration of conformity

Declaration of conformity

Declaration of conformity

Declaration of conformity

EU Type-examination certificate
EU-DL-479-ELF1 EN 81-21

EU Type-examination certificate
EU-DL-480-EL1 EN 81-21

EU Type-examination certificate
UK-DL-479-ELF1 EN 81-21

EU Type-examination certificate
UK-DL-480-EL1 EN 81-21