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Which ACK4 do I need?

Choosing the right actuator depends on your power supply and where it’s being used.

ACK42 Window Opener (230V)

The most common option for standard installations, with a wide range of control options.

ACK44 Window Opener (24v)

Ideal for low-voltage and wet environments such as bathrooms and swimming pools.

If you’re unsure, send us your window size or photos and we’ll recommend the right ACK4 for your setup.

ACK4 Installed on Window

ACK4 Product Range

We hold good stock levels of all the complete ACK4 range of products

  • ACK4 Chain Actuator White

    ACK4 230V Chain Actuator (ACK42) – 300N 400mm stroke

    Stroke (mm)
    Selectable, 100, 150, 200, 250, 300, 350, 400
    Max Force (N)
    300
    Colour/Finish
    BlackBlack
    SilverSilver
    WhiteWhite
    CustomCustom
    Max Current (amps)
    0.32
  • ACK4 Chain Actuator White

    ACK4 24V Chain Actuator (ACK44) – 300N 400mm stroke

    Stroke (mm)
    Selectable, 100, 150, 200, 250, 300, 350, 400
    Max Force (N)
    300
    Colour/Finish
    BlackBlack
    SilverSilver
    WhiteWhite
    CustomCustom
    Max Current (amps)
    1.35
  • Topp chain actuators ACK4 in 3 Colours

    ACK4 RWA Chain Actuator 24V (BS EN 12101-2 certified)

    Stroke (mm)
    Selectable, 100, 150, 200, 250, 300, 350, 400
    Max Force (N)
    300
    Colour/Finish
    BlackBlack
    SilverSilver
    WhiteWhite
    Max Current (amps)
    1.35

ACK4 Product Focus

The ACK4 chain actuator is one of the most popular electric window openers.  In our product focus article, we look at the common applications for this product, popular control methods and troubleshooting tips.

TOPP ACK4 in White, Grey, and Black

Key Features

Versatile Window Compatibility

Support for all window types from 200mm tall (from opening edge)

Synchronous Version for Bigger Windows

Larger windows can have multiple ACK4s cooperating together for safe opening.

Powerful 300N (30kg) opening

The motor and gear box is rated for up to 30kg of push/pull force.

Easy Stroke Adjustment

Easy dial for choosing opening stroke between 100-400mm in 50mm increments

Ingress Protection IP55 Rated

Great protection from dust and water ingress, making it ideal for skylights.

Easy To Clean

The robust diecast body is powder coated with a smooth wipeable finish.

Colour Finishes

Standard colour finishes of White (RAL9010), Silver (RAL9006), and Black (RAL9005). Theres’s also an option for an unpainted product which can be custom powder coated to your specific requirements.

Product Downloads

The downloads below are from the manufacturer and detail fitting instructions and product specifications.

ACK4 Datasheet
ACK4 Fitting Instructions

Need a replacement ACK4

If your opener has failed or has become unreliable, we can help you find a like-for-like replacement. Simply send us a photo and we’ll match it.

Popular ACK4 Control Options

  • Rocburn Touchpoint Remote Control Panel

    Touchpoint Switch Panel

    Colour/Finish
    WhiteWhite
    Actuator Voltage
    230Vac, 24Vdc
  • MB08 Temperature Control Panel

    MB08 Temperature Control Panel

    Sensor Options
    Rain, Temperature (Wired)
    Actuator Voltage
    230Vac
    Max Current (amps)
    5
  • S50 Switch not engraved

    S50 Switch Range

    Colour/Finish
    WhiteWhite
    Actuator Voltage
    230Vac
    Max Current (amps)
    10
  • MB06 Panel Photo

    MB06 Temperature Control Panel

    Sensor Options
    Rain, Temperature (Built-in)
    Actuator Voltage
    230Vac
    Max Current (amps)
    5