Alpha WSERD50-B 20/12 OD Rechargeable Motor

The Alpha WSERD50-B 20/12 OD is a powerful 20Nm rechargeable tubular motor designed for external shading applications including zip systems and straight drop awnings.

Featuring a built-in rechargeable lithium-ion battery, the Alpha WSERD50-B 20/12 OD provides high-torque motorisation without requiring permanent mains power to the motor, helping avoid the need for an electrician to provide a conventional powered motor connection.

A major feature of this model is Obstacle Detection (OD), providing an additional function for compatible external shading systems.

The motor also offers three adjustable operating speeds, ultra-quiet operation and multiple charging configurations, including charging ports positioned within the headbox or side channel and compatibility with the Alpha TYB004-U External Solar Panel.

Powerful 20Nm Motor

The Alpha WSERD50-B 20/12 OD provides 20Nm of rated torque, placing it well above the smaller rechargeable blind motors in Alpha’s range.

This additional torque is designed for demanding external applications such as compatible zip systems and straight drop awnings.

The motor combines its 20Nm torque with selectable operating speeds of:

8 / 10 / 12 rpm

This allows the operating speed to be configured according to the requirements of the installation.

Obstacle Detection

A defining feature of the Alpha WSERD50-B 20/12 OD is its built-in Obstacle Detection (OD) function.

Alpha identifies obstacle detection specifically as a feature of this new 20Nm version.

The OD function can also be switched off when it isn’t required, including when configuring certain side-channel applications.

This provides greater flexibility when setting up the motor for different external shading systems.

Built-In Rechargeable Lithium-Ion Battery

The Alpha WSERD50-B 20/12 OD incorporates a built-in rechargeable lithium-ion battery.

The rechargeable design removes the need to provide permanent mains power directly to the motor for normal operation.

For suitable installations, this can simplify motorisation considerably compared with a conventional hardwired external motor.

No Electrician Required for Motor Power

Because the motor operates from its internal rechargeable battery, Alpha lists “No electrician needed” as one of its key features.

This can make the Alpha WSERD50-B 20/12 OD particularly attractive for retrofit installations or external shading systems where providing permanent electrical wiring would otherwise add complexity.

The installation itself must still be completed appropriately for the particular shading system and site conditions.

Three Adjustable Speeds

The Alpha WSERD50-B 20/12 OD offers three selectable operating speeds:

8 rpm / 10 rpm / 12 rpm

Adjustable speed provides greater control over how quickly the external blind or awning travels.

This allows the installer to select an appropriate speed according to the system being motorised rather than being restricted to one fixed speed.

Ultra-Quiet Operation

Despite its substantial 20Nm torque, Alpha specifies the WSERD50-B 20/12 OD as an ultra-quiet motor.

This provides smoother, quieter operation for residential and other applications where excessive motor noise would be undesirable.

Multiple Charging Options

One of the strongest features of the Alpha WSERD50-B 20/12 OD system is its range of available charging configurations.

Rather than requiring direct access to the motor every time it needs charging, Alpha provides charging-port options that can be incorporated into the external shading system.

Available options include a:

1.5m side-channel charging port

This provides an accessible charging connection positioned through the side-channel arrangement.

150mm headbox charging port

This provides another option for locating the charging connection conveniently around the headbox.

These charging solutions can make routine battery charging significantly more practical once the motor is installed.

Alpha ALDC 5V 2Amp LED USB-C Charger

The Alpha WSERD50-B 20/12 OD requires the:

Alpha ALDC 5V 2Amp LED USB-C Charger

This is important because it is not the same charger used by the WSERD30-B rechargeable motors.

Customers purchasing a replacement or additional charger should select the correct Alpha 5V 2Amp LED charger specified for this motor.

External Solar Charging

The Alpha TYB004-U External Solar Panel is also listed as a charging option for the Alpha WSERD50-B 20/12 OD.

The TYB004-U provides 3W USB-C solar charging and is specifically designed as Alpha’s external solar-panel option.

For suitable installations with adequate sunlight, solar charging provides another method of maintaining the motor’s rechargeable battery.

Actual solar charging performance depends on panel position, orientation, shading, weather and available sunlight.

Designed for External Shading Systems

Alpha specifically identifies the WSERD50-B 20/12 OD for external applications including:

Zip systems
Straight drop awnings

Its IP44 protection rating, high 20Nm torque, rechargeable battery and specialised charging options reflect its intended role in these applications.

Starhead and Included Bracket

The Alpha WSERD50-B 20/12 OD features a starhead and includes the Alpha A3438 bracket.

Alpha also supplies A2409 C&D with the motor.

Providing these components as part of the motor package helps ensure the correct hardware is available for compatible installations.

Technical Specifications

• Model: Alpha WSERD50-B 20/12 OD
• Product Code: WSERD50-B 20/12 OD
• Application: External shading systems
• Obstacle Detection: Yes
• Rated Torque: 20Nm
• Output Speed: 8 / 10 / 12 rpm
• Speed Adjustable: Yes – 3 speeds
• Nominal Consumption: 96W
• Nominal Voltage: 12V
• Nominal Current: 8A
• Running Time: 12 minutes
• Protection Index: IP44
• Total Length: 800mm
• Maximum Turns: Infinity
• Net Weight: 2.6kg
• Battery: Built-in rechargeable lithium-ion
• Required Charger: Alpha ALDC 5V 2Amp LED USB-C Charger
• Included C&D: A2409
• Included Bracket: A3438
• Motor Head: Starhead
• Typical Applications: Zip systems and straight drop awnings

Compatible Accessories

These are excellent internal-link opportunities on this page because Alpha has specifically identified them for the WSERD50-B 20/12 OD.

Alpha ALDC 5V 2Amp LED USB-C Charger

The specified 5V USB-C charger for the Alpha WSERD50-B 20/12 OD.

Alpha TYB004-U External Solar Panel

Alpha’s 3W external USB-C solar panel, providing a solar charging option for the WSERD50-B 20/12 OD.

Alpha USB-C CP 1.5m External Charging Port

The 1.5-metre side-channel charging port provides an accessible charging connection for compatible installations.

Alpha USB-C CP 150mm External Charging Port

The 150mm headbox charging port provides an alternative accessible charging location for compatible installations.

Those four product names should become your internal links where you’ve created the corresponding Frontline pages.

FAQs

What is the Alpha WSERD50-B 20/12 OD designed for?

Alpha identifies the motor for external applications including zip systems and straight drop awnings.

How powerful is the Alpha WSERD50-B 20/12 OD?

It provides 20Nm of rated torque, with three selectable operating speeds of 8, 10 and 12 rpm.

Does the Alpha WSERD50-B 20/12 OD have obstacle detection?

Yes. Obstacle Detection (OD) is a key feature of this version of the motor.

Can obstacle detection be turned off?

Yes. Alpha states that the OD function can be switched off if it isn’t required, including when setting up certain side-channel applications.

Which charger does the Alpha WSERD50-B 20/12 OD require?

It requires the Alpha ALDC 5V 2Amp LED USB-C Charger.

Can the Alpha WSERD50-B 20/12 OD use solar charging?

Yes. Alpha lists the Alpha TYB004-U External Solar Panel as a charging option.

What external charging-port options are available?

Alpha lists a 1.5m side-channel charging port and a 150mm headbox charging port, allowing the charging connection to be positioned more conveniently for the installation.