

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
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.
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.
Thanks for subscribing!
This email has been registered!