WindowMaster WMD 820-1G IN Folding Arm Actuator
Available in stock
The WindowMaster WMD 820 Folding Arm Actuator is engineered for side-hung windows and doors requiring 90-degree opening capability. Ideal for both inward and outward opening AOV systems, this actuator delivers reliable automated ventilation control. Its folding arm design ensures compact operation without obstructing the opening path, making it perfect for commercial buildings, offices, and facilities where automatic window operation enhances safety and air quality management.
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| Specification | Details |
|---|---|
| Voltage | 24V DC (+/- 10%) |
| Push Force | 250 N |
| Pull Force | 250 N |
| Locking Force | 2000 N |
| Opening Stroke | 90° or 98° (programmable) |
| Opening Speed | < 60 sec |
| Current Consumption | 1.0 A |
| Operating Conditions | -5°C to +74°C |
| Switch-on Duration | ED 40% (max. 4 min per 10 min) |
| Colour | Silver Anodised or custom RAL colour |
| IP Rating | IP 32 |
| Certification | EN 12101-2 |
| Life Span | 10,000 opening and closing movements |
| Delivery Includes | 1 × Actuator (fixing brackets sold separately) |
| Flex Length | 5 m |
| Cable Dimensions | 2-Core (plus 3 communication wires) |
| Min. Window Width | > 750 mm (Side-Hung) |
| Max. Window Width | < 1200 mm (Side-Hung) |
| Synchronisation | Yes (programmable) |
Discover more in our FAQ
Our commitment to technical excellence and exceptional customer service has made us a trusted name in the industry. For professional guidance on your ventilation project, contact us today.
What is an actuator on a window?
What is an actuator on a window?
A window actuator is a device installed on a window that allows it to open and close automatically, eliminating the need for manual operation. They are ideal for hard-to-reach windows and rooflights, multiple windows that need to operate simultaneously, or buildings aiming to take advantage of automated windows and enhanced natural ventilation.
What are the key types of window actuators?
What are the key types of window actuators?
- Electric Chain Actuator: Pushes/pulls the window using a chain; good for medium-sized windows; smooth and quiet.
- Linear/Spindle Actuator: Uses a screw-like spindle to extend/retract; precise and robust; supports heavier windows.
- Folding Arm Actuator: Uses a hinged arm to swing the window open; allows wide openings; good for heavy or outward-opening windows.
What to consider when choosing a window actuator?
What to consider when choosing a window actuator?
When selecting a window actuator, keep the following in mind:
- Window Type & Size - Make sure the actuator is suitable for the window's design, dimensions, and weight.
- Force Requirements - Choose an actuator capable of providing enough force for smooth and reliable operation.
- Voltage & Power Supply - Decide between 24V or 230V options depending on your building's electrical setup.
- Mounting & Aesthetics - Consider available space and how visible the actuator will be.
Who can install a window actuator?
Who can install a window actuator?
Window actuators, used for high-level windows or roof vents, can be installed by qualified professionals such as window automation specialists, automated ventilation technicians, glaziers, or electricians.
