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The PRO-SOURCE CED3705DD-FSB is a two-speed fan speed control designed for residential and light commercial ventilation and HVAC fan applications. It operates at 125 volts with a 1.5 amp rating, making it suitable for controlling single-phase fan motors within those electrical parameters. The control allows switching between two discrete speed settings, giving installers a straightforward way to manage airflow output without complex wiring or additional components. Licensed HVAC technicians and electricians are the typical installers for this type of control device.
This fan speed control is used in applications where a simple two-speed fan operation is required, such as exhaust fans, ventilation fans, or HVAC air handler fan circuits rated at 125 volts. It is a direct replacement-style control suited for service calls or new installations where a compact, reliable speed-switching device is needed. Its low amperage rating of 1.5 amps makes it appropriate for smaller fan motor loads rather than high-draw commercial equipment.
Designed as an OEM-style replacement fan speed control for 125-volt fan motor applications requiring two-speed switching capability.
Installation should be performed by a licensed electrician or qualified HVAC technician in accordance with applicable NEC requirements. Disconnect and lock out all power to the circuit before removing the existing control or making any wiring connections. Verify that the connected fan motor load does not exceed the 1.5 amp rating of this control prior to energizing the circuit. Do not install on circuits exceeding 125 volts.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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