HOFFMAN 791-ECM ECM(VmA) Fan Speed Control

Product Description

The HOFFMAN 791-ECM is an electronic fan speed controller designed to provide proportional speed control for ECM motors. This controller functions efficiently in variable air volume applications and only requires a twenty-four VAC power source. Motor speed modulation is accomplished through a pulse width modulated signal.

• Compatible with energy efficient ECM (brushless DC) motors.
• Ideal for variable air volume applications.
• Input compatible with DC voltage or current.

Product Highlights

This device is suitable for air-moving tasks and works well with both squirrel cage and propeller-type fans. It is also applicable for some direct-drive motor setups.

Product Information

Standard Information

• Brand: HOFFMAN
• MPN: 791-ECM

Technical Specifications

• Input Voltage: 24 VAC
• Output: PWM signal