2-10VDC Motor Speed Controller

Hoffman Controls 710-VDC Motor Speed Controller – 2–10 VDC Fan Speed Control

The Hoffman Controls 710-VDC Motor Speed Controller is a reliable electronic fan speed control designed to regulate the speed of PSC (Permanent Split Capacitor) and shaded pole motors using a 2–10 VDC input signal. This controller is commonly used in HVAC and ventilation systems where precise airflow control is required to maintain optimal temperature, pressure, or air volume.

The 710-VDC controller adjusts motor speed proportionally to the input control signal, allowing smooth and efficient variable speed operation of blower or propeller fans. This functionality helps improve system efficiency while maintaining stable environmental conditions in commercial and industrial applications.

To ensure dependable motor startup, the controller features a full-voltage torque start, delivering the necessary power to initiate fan rotation before transitioning to proportional speed control. The built-in minimum speed adjustment allows users to set the lowest operating fan speed, providing greater system customization.

Additionally, the integrated continuous flow switch ensures the fan motor continues running at the selected minimum speed even if the control signal drops below 2 VDC, preventing unwanted motor shutdown and maintaining essential airflow.

Designed for multi-voltage applications, the Hoffman Controls 710-VDC supports 115V and 208–230V systems, making it a flexible solution for a wide range of HVAC and ventilation control setups.

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Key Features

• Accepts 2–10 VDC input signal for proportional motor speed control

• Compatible with PSC and shaded pole motors

• Multi-voltage support: 115V or 208–230V applications

• Minimum speed adjustment for customized airflow control

• Full-voltage torque start ensures reliable fan startup

• Continuous flow switch prevents motor shutdown when signal drops below 2 VDC

• Ideal for blower and propeller fan speed control in HVAC systems

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Product Specifications

Brand: Hoffman Controls
Model: 710-VDC
Product Type: Motor Speed Controller / Fan Speed Control

Control Input

• 2–10 VDC control signal

Compatible Motors

• Permanent Split Capacitor (PSC) motors

• Shaded pole motors

Voltage Compatibility

• 115V

• 208–230V

Control Function

• Proportional speed control based on input signal

Adjustments

• Minimum speed adjustment

Special Features

• Continuous flow switch

• Full voltage torque start

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Applications

The Hoffman Controls 710-VDC Fan Speed Controller is commonly used in:

• HVAC blower fan speed control

• Propeller fan variable speed applications

• Ventilation and air handling systems

• Temperature, airflow, or pressure regulation systems