KB Electronics Model KBWC-15K (UR) Variable Speed Fan Control, Wall Mount, Rated 5.0 Amps @ 120 VAC for use with Shaded Pole and PSC Motors

This worked perfectly for my needs. The previous controller was two-wire (no ground), so I just grounded this one to the frame of the Thermador range hood in which I installed it. (Note: I had to cut off the ends of the mounting plate, at the screw holes, in order to fit it in the housing.)

These work great with kitchen suction fans.

This rheostat replaced worn out part for a gas fireplace fan, fan blows much faster now. The part was a simple plug in install

Does not work.

I'm using this controller to slow down a 3 amp .5 HP 120 volt PSC motor. It's running inline from the 120v Hot to the motor Primary. Do not run this controller to the motor secondary winding/capacitor. Unfortunately it won't lower the speed enough for what I'm looking for but that's my mistake not the controller's. I was aiming for closer to 20-30 RPM but the motor is rated at around 1100 rpm, not anywhere near slow enough for my needs.

works ok as a switch, variable speed did not work well, runs a bit hotter than older model

I used this to control a variable speed whole house fan. The old one would not shut off, this new one was a direct replacement.

Purchased for a fireplace that has two blowers. One on each side. Had purchased one thru local hardware store and did not work like original. Went ahead and ordered this one solely because actually depicts the adjustments via dial and switch plate. This switch worked exactly as needed and the amperage rating supports the two blower motors. Good buy too! Am very pleased with quality for cost. Thank you