DLF1-EX

Universal device for single-leaf door, EX-version

The door interlocks of DL(F)1-EX type are suitable for the application in explosive atmosphere and are used for locking and monitoring lift doors. The variability allows adaptation to different operating conditions.

DLF1-EX

DLF1-EX

DLF1-EX

Features

general:

  • metal housing with high stability
  • silent due to buffers in both directions
  • maintenance-free by permanent lubrication with high quality lubricants (up to -20 °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 DLF1-EX for the use in passenger lifts
  • extensive range of accessories

special features:

  • explosion-protected version
  • water protection (IP65) of the electrical contacts, regardless of the installation position
  • stainless steel cover instead of plastic cover
  • 2 m connection cable in standard
  • optional: auxiliary switch
  • optional: latch bolt chromed or made of stainless steel
  • connection for bowden cable or cable pull for actuation or 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
EN 60079-0, EN 60079-1, EN 60079-31, EN ISO 80079-36
certificates:
door interlock
switch for locking mechanism
auxiliary switch
EU-DL 415 (DLF1-EX) and EU-DL 416 (DL1-EX)
PTB 03 ATEX 1068 X IECEx PTB 06.0053X
EPS 14 ATEX 1766 X IECEx EPS 14.0092X
EX-marking:
door interlock not applicable
switch for locking mechanism ATEX EX II 2G Ex db IIC T6 / T5 Gb EX II 2D Ex tb IIIC T80°C / T95°C Db
IECEx EX db IIC T6 / T5 Gb EX tb IIIC T80°C / T95°C Db
auxiliary switch ATEX EX II 2G Ex d IIC T6 / T5 Gb EX II 2D Ex tb IIIC T80°C / T95°C Db
IECEx EX d IIC T6 / T5 Gb EX db IIC T6 / T5
switching capacity:
switch for locking mechanism
auxiliary switch .9/01
Ui = 250 V Ith = 6 A Uimp = 4 kV
AC-15: Ue = 230 V Ie = 2 A DC-13: Ue = 200 V Ie = 0.25 A
AC-15: Ue = 250 V Ie = 2 A DC-13: Ue = 250 V Ie = 0.15 A
short-circuit capacity T 10 A F 16 A
contact material silver-nickel (minimum load 24 V, 10 mA )
actuation:
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:
switch for locking mechanism
auxiliary switch .9/01
Ui = 250 V Ith = 6 A Uimp = 4 kV
2 m connection cable H05VV-F, 4 x 0.75 mm² (10 m as option)
3 m connection cable H05VV-F, 2 x 0.75 mm² (10 m as option)
level of protection IP65 (auxiliary switch IP66; housing of mechanical parts IP40)
ambient air temperature -10 °C up to +65 °C
weight 900 g to 1050 g (according to version)

Downloads

catalogue

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
EU-DL-415-DLF1-EX

type examination certificate
EU-DL-416-DL1-EX