Topp ACK4 Window Actuator

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Topp ACK4 window actuator is a component part of an electric window opening system. This electric chain actuator is a motor driven device for opening and closing hard-to-reach windows and roof vents. Allows for natural ventilation in the room at the touch of a button.

Housed in an aluminium casing, painted in a white coloured epoxy powder coating. Comes complete with a window mount bracket. There are various options for mounting the actuator body to the window frame itself.


  • Opens & closes high level windows and skylights
  • 24V DC or 230V AC (50Hz) power voltage options
  • Thrust force 300 N
  • Adjustment of the stroke in 7 positions from 100-400mm
  • Double-link stainless steel chain
  • High protection degree IP 55
  • Various body mounting brackets are available (see options)
  • Acoustic device to indicate wrong installation (buzzer)
  • White finish (black or grey available by request)

Additional information

Weight 2 kg



24v, 230v


Bottom Hung Bracket, Large Swivel Bracket, Small Swivel Bracket, Standard Bracket, Vertical Mounting Bracket



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