Alpha WSER50 30/17 Universal 240V Radio Motor
The Alpha WSER50 30/17 Universal is a powerful 240V wired radio motor designed particularly for external straight-drop awning systems, as well as compatible roller blinds and roller shutters.
Delivering 30Nm of rated torque at 17 rpm, this model provides substantially greater torque than the 10Nm WSER50 10/27 while retaining the key functionality of Alpha’s WSER50 Universal range.
Alpha describes its WSER50 Universal motors as its most popular external straight-drop motors in Australia.
The motor combines an electronic limit switch, built-in radio receiver, wireless limit setting, external antenna and torque-stop functionality in a 45mm tubular motor.
30Nm Torque for Larger Applications
The defining specification of the Alpha WSER50 30/17 is its 30Nm rated torque.
It operates at 17 rpm, providing a balance between substantial torque and controlled movement for compatible external awnings, roller blinds and roller shutters.
Compared with the 10Nm / 27 rpm version, the 30/17 sacrifices some operating speed in exchange for considerably greater torque.
Correct motor selection should always be based on the requirements of the complete system, including dimensions, weight, tube configuration and application.
Torque-Stop Function
One of the major features of the Alpha WSER50 series is its torque-stop functionality.
In compatible external straight-drop systems, the motor can respond to resistance rather than relying exclusively on its programmed electronic stopping positions.
For side-channel awning systems, this allows torque stop to be used against physical stoppers at the upper position.
The same functionality can also be used at the lower position to help tension the awning fabric when fully extended.
Importantly, the torque-stop function doesn’t replace the motor’s normal electronic limits. Alpha specifies that a conventional top limit can be programmed and the torque-stop function used in conjunction with it.
Built for External Straight-Drop Systems
Alpha specifically identifies the WSER50 Universal series as ideal for external straight-drop systems.
These installations can place different demands on a motor compared with conventional internal roller blinds, particularly where side channels, fabric tension and exposure to changing weather conditions are involved.
The WSER50’s combination of 30Nm torque, electronic limits, torque-stop operation and weather-sensor compatibility makes it particularly suited to these applications.
Alpha also lists roller blinds and roller shutters as key applications.
Built-In Radio Receiver
The Alpha WSER50 30/17 has its radio receiver built directly into the motor.
This enables wireless operation using compatible Alpha remote controls without requiring a separate external radio receiver.
The motor also incorporates an external antenna as part of its radio-control system.
This means the WSER50 remains permanently connected to 240V power while providing convenient wireless user control.
Electronic Limits
The Alpha WSER50 30/17 uses an electronic limit switch.
The motor’s upper and lower stopping positions can therefore be electronically programmed rather than adjusted using conventional mechanical limit screws.
Electronic limits provide repeatable stopping positions during normal operation.
Wireless Limit Setting
Alpha also specifies wireless limit setting for the WSER50 30/17.
This allows the motor’s electronic limits to be programmed using compatible Alpha radio-control equipment.
Together with the built-in receiver and electronic limit system, wireless programming provides a streamlined setup process for compatible installations.
Sun/Wind Sensor Compatibility
The Alpha WSER50 Universal series is suitable for use with:
Alpha RS001 Sun/Wind Sensor
Alpha RS002 Sun/Wind Sensor
These can be internally linked directly to their Frontline Supply product pages once they’re published.
For external awnings, automated weather protection is particularly useful because conditions can change while the awning is extended or when nobody is present to operate it manually.
Sensor Heartbeat Protection
The WSER50 also incorporates a protective response if communication with a compatible Sun/Wind Sensor is lost.
Alpha states that the motor detects a pulse transmitted by the sensor approximately every 20 minutes.
If the awning is down and the motor doesn’t receive a sensor signal for approximately 30 minutes, it automatically raises the awning.
The motor effectively assumes that the sensor or communication has failed and retracts the awning as a protective measure.
This provides protection not only from detected weather conditions but also from a potential failure of the sensor system itself.
45mm Tubular Motor
The Alpha WSER50 30/17 uses a 45mm diameter motor body.
The motor has an overall length of 570mm and weighs approximately 2.45kg.
It is supplied with the A2404 C&D and A3415 motor bracket according to Alpha’s specifications.
240V Wired Radio Operation
The Alpha WSER50 30/17 is a wired 240V motor.
It is therefore fundamentally different from the rechargeable Alpha WSERD motors.
The WSER50 receives mains power while its built-in radio receiver provides wireless control.
This gives customers the convenience of remote operation without relying on a rechargeable motor battery.
Key Features
- 30Nm rated torque
- 17 rpm output speed
- 240V wired operation
- 45mm tubular motor
- Electronic limit switch
- Built-in radio receiver
- Wireless limit setting
- External antenna
- Torque-stop functionality
- Suitable for external straight-drop systems
- Can stop against upper stoppers in compatible side-channel systems
- Can assist with fabric tensioning at the lower position
- Compatible with Alpha RS001 and RS002 Sun/Wind Sensors
- Sensor communication failure protection
- IP44 protection
- Suitable for compatible awnings, roller blinds and roller shutters
Technical Specifications
- Model: Alpha WSER50 30/17 Universal
- Product Code: WSER503017
- Motor Type: 240V wired radio tubular motor
- 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: A2404
- Included Motor Bracket: A3415
Compatible Accessories
These are confirmed by Alpha for the WSER50 series and should be internal links:
Alpha RS001 Sun/Wind Sensor
Alpha RS002 Sun/Wind Sensor
I’d keep the compatibility section to those confirmed accessories rather than filling it with remotes or other controls until Alpha specifically confirms them.
Electrical Installation
The Alpha WSER50 30/17 operates at 240V mains voltage.
Electrical installation must comply with applicable Australian electrical requirements and should be carried out by appropriately licensed personnel where required.
FAQs
What is the Alpha WSER50 30/17 designed for?
It is particularly suited to external straight-drop awnings. Alpha also lists roller blinds and roller shutters as key applications.
How powerful is the Alpha WSER50 30/17?
It provides 30Nm of rated torque and operates at 17 rpm.
What does the torque-stop function do?
Torque stop allows the motor to respond to resistance. In compatible straight-drop systems it can be used against upper stoppers and can also help tension the fabric at the lower position.
Does the Alpha WSER50 30/17 have a built-in receiver?
Yes. It has a built-in radio receiver and external antenna for operation with compatible Alpha radio controls.
Does it use electronic or mechanical limits?
The Alpha WSER50 30/17 uses an electronic limit switch and supports wireless limit setting.
Which Sun/Wind Sensors can be used with it?
Alpha specifies compatibility with the RS001 and RS002 Sun/Wind Sensors.
What happens if communication with the Sun/Wind Sensor fails?
Alpha states that the motor expects a sensor pulse approximately every 20 minutes. If the awning is down and no signal is received for around 30 minutes, the motor automatically raises the awning as a protective measure.






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