Alpha WSER50 30/17 Cassette Awning Motor
The Alpha WSER50 30/17 Cassette Awning Motor is a specialised 240V tubular radio motor designed for folding-arm and cassette awning systems.
Rather than simply operating between two conventional programmed limits, this motor can automatically determine its inner or closed stopping position based on resistance as the cassette closes.
This allows the awning to close neatly into its cassette while the motor detects the resistance created when the system reaches its fully closed position.
The motor delivers 30Nm of rated torque at 17 rpm and incorporates an electronic limit switch, built-in radio receiver, wireless limit setting and external antenna.
Automatic Inner Limit Setting
The standout feature of the Alpha WSER50 30/17 Cassette Awning Motor is its ability to automatically establish its inner stopping position.
When using automatic inner-limit setting, the installer first manually sets the outer or extended limit using the remote control.
When the awning is subsequently closed for the first time, the motor detects resistance as the cassette reaches its fully closed position.
The motor then establishes this position as its inner stopping point.
This is particularly useful for cassette awnings because the closed position is determined by the physical closure and tension of the awning system rather than relying exclusively on a manually programmed position.
Resistance-Based Closing
After the automatic inner position has been established, the motor monitors resistance as the awning closes.
Alpha specifies a standard resistance increase of 25% for detecting the closed position.
Once that increased resistance is detected, the motor stops.
This provides a controlled way of closing the cassette while allowing the motor to respond to the physical characteristics of the awning system.
Adjustable Resistance Sensitivity
Larger cassette awnings can require more closing force than smaller systems.
For this reason, Alpha allows the resistance threshold to be increased beyond the standard 25%.
Available settings are:
- 25%
- 50%
- 75%
- 100%
Alpha notes that adjustment beyond the standard setting is rarely required, but the feature provides additional flexibility for larger cassette awnings where a 25% resistance increase may not be sufficient.
Manual Inner Limit Option
Automatic resistance-based limit detection isn’t compulsory.
The Alpha WSER50 30/17 Cassette Awning Motor also allows the inner stopping position to be set manually when required.
This gives installers the flexibility to choose between automatic resistance detection and a manually established inner limit depending on the requirements of the awning system.
Designed for Folding-Arm and Cassette Awnings
Alpha specifically identifies this motor for:
Folding-arm awnings
Cassette awnings
That distinguishes this model from the WSER50 Universal motors we’ve just added, which Alpha positions primarily for external straight-drop systems.
The Cassette Awning model has functionality specifically designed around the way folding-arm and cassette awnings retract and close.
Built-In Radio Receiver
The motor incorporates a built-in radio receiver, allowing wireless operation using compatible Alpha remote controls.
An external antenna forms part of the motor’s radio-control system.
Because the receiver is incorporated directly into the motor, a separate external radio receiver isn’t required for normal compatible radio operation.
Electronic Limit Switch
The Alpha WSER50 30/17 Cassette Awning Motor uses an electronic limit switch.
The outer position can be programmed electronically, while the inner position can either be established automatically through resistance detection or manually when required.
Wireless Limit Setting
Alpha specifies wireless limit setting, allowing the motor to be configured using compatible Alpha radio controls.
This is particularly useful for an awning motor installed inside a cassette or awning tube where direct access to the motor can be limited after installation.
Sun/Wind and Motion Sensor Protection
Alpha states that this motor can operate with Sun/Wind Sensors or Motion Sensors.
When used with a compatible sensor, the motor monitors a regular signal or heartbeat from that sensor.
The sensor issues a pulse approximately every 20 minutes.
If the awning is extended and the motor doesn’t receive the expected signal for approximately 30 minutes, the awning automatically closes.
The system assumes that the sensor may have failed, communication may have been lost or the sensor batteries may be flat.
Automatically retracting the awning provides an additional protective response when the sensor itself can no longer be relied upon.
30Nm Torque and 17 RPM
The motor provides:
30Nm rated torque
17 rpm output speed
Its nominal power consumption is 226W, operating from a 240V mains supply with a nominal current of 0.95A.
45mm Tubular Motor
The Alpha WSER50 30/17 Cassette Awning Motor uses a 45mm diameter tubular motor body.
Its total length is 570mm, with a net weight of approximately 2.45kg.
Alpha specifies IP44 protection and an unlimited electronic turn specification.
Key Features
- Designed for cassette awnings
- Designed for folding-arm awnings
- 30Nm rated torque
- 17 rpm output speed
- 240V wired operation
- 45mm motor diameter
- Electronic limit switch
- Built-in radio receiver
- Wireless limit setting
- External antenna
- Automatic inner-limit detection
- Manual inner-limit setting available
- Resistance-based closed-position detection
- Standard 25% resistance setting
- Adjustable 50%, 75% and 100% resistance settings
- Compatible sensor monitoring
- Automatic protective closure following loss of sensor signal
- IP44 protection
- Remote-control operation
Technical Specifications
- Model: Alpha WSER50 30/17 Cassette Awning
- Product Code: WSER503017A
- Rated Torque: 30Nm
- Output Speed: 17 rpm
- Nominal Consumption: 226W
- Nominal Voltage: 240V
- Nominal Current: 0.95A
- Running Time: 4 minutes
- Protection Index: IP44
- Motor Diameter: 45mm
- Total Length: 570mm
- Maximum Turns: Infinity
- Net Weight: 2.45kg
- Electronic Limit Switch: Yes
- Built-In Receiver: Yes
- Wireless Limit Setting: Yes
- External Antenna: Yes
- Included C&D: A2409
- Included Motor Plate: A3415
- Applications: Folding-arm and cassette awnings
Compatible Accessories
For this one, Alpha specifically confirms compatibility at the sensor-type level with:
Alpha Sun/Wind Sensors
Alpha Motion Sensors
I would not name RS001/RS002 or a particular motion-sensor model as an internal link yet unless Alpha specifically confirms those individual models for this motor. That’s slightly different from the WSER50 Universal description, where Alpha explicitly named RS001 and RS002.
Electrical Installation
The Alpha WSER50 30/17 Cassette Awning Motor operates at 240V mains voltage.
Electrical installation must comply with applicable Australian electrical requirements and be carried out by appropriately licensed personnel where required.
FAQs
What is the Alpha WSER50 30/17 Cassette Awning Motor designed for?
Alpha specifically designed this motor for folding-arm and cassette awnings.
How does the automatic inner limit work?
The outer limit is set manually. When the awning closes for the first time, the motor detects resistance at the fully closed position and establishes this as its automatic inner stopping position.
Can the inner limit be set manually?
Yes. Alpha allows the inner limit to be manually programmed instead of using automatic resistance detection.
What resistance setting does the motor use?
The standard resistance increase is 25%. It can be increased to 50%, 75% or 100% when required for larger cassette awnings.
What torque does the motor provide?
The motor provides 30Nm of rated torque and operates at 17 rpm.
Does it have a built-in radio receiver?
Yes. It incorporates a built-in receiver and external antenna for operation with compatible Alpha radio controls.
What happens if a connected weather or motion sensor stops communicating?
Alpha states that compatible sensors issue a pulse approximately every 20 minutes. If the awning is extended and the motor receives no signal for approximately 30 minutes, it automatically closes as a protective measure.







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