Electromechanical door opening aid up to 400 Pa back pressure

For opening escape doors

Specially designed for use in road tunnels

Door opening up to 400 Pa counterpressure


Electromechanical door opening aid for opening exit doors according to the regulations up to a back pressure of 400 Pa. Especially designed for use in road tunnels when pressure differences occur. When the door lever handle is pressed (alternatively a panic touch bar), the door opens directly, automatically in the exit direction up to a door opening angle of 17°. Safe pressure equalisation therefore occurs automatically. Design in accordance with Directive 2004/54/EC, RABT, ZTV-ING Part 5, TL/TP TTT, STSG, RVS and PLaPB.

Adjustable stop plate in two directions

Motor lock


  • Durability test (continuous opening and closing) 25,000 cycles
  • Degree of protection: IP66 rating (Electromechanical overhead door opener drive, control box)
  • Door opening up to 400 Pa back pressure
  • Continuous opening up to 17° with one actuation
  • Normal function of the door continues to be ensured


  • Electromechanical overhead door opener with actuating drive, connection cable, ellipsoidal lever arm, stainless steel housing and adjustable stop plate on the door leaf, door opening up to 17° opening angle, opening time approx. 5 s
  • Electric motor lock with connection cable and motor lock control unit, three-latch lock, forend width 16 mm
  • Control box made of plastic with power pack, PLC, motor lock control and operation indicator
  • For mounting on side-hung doors, left or right-hung, opening side
  • Mountable on door frame or concrete wall

Control box

Material characteristic

  • Electromechanical overhead door opener – housing, lever arm, adjustable stop plate made of stainless steel 1.4571
  • Optional raw stainless steel finish, powder coated green RAL 6018, powder coated grey 7037
  • Electrical motor lock, forend made of stainless steel 1.4571
  • Control box made of plastic, grey similar to RAL 7037

Dimension drawing

Scope of delivery

  • Electromechanical door opening aid, consisting of:
  • Overhead door opener, control box and motor lock
  • Fixing materials
  • Connection cable
File name
Catalogue excerpt .pdf
Text for tender PRIODOOR ETH TUN .pdf