I bought a Bryant motor switch a whie ago. It is a 2 pole switch that fits into regular square electric boxes. It is bigger than a light switch and requires a dedicated box with the cover that has a switch lever hole in the middle. It is rated for 5 HP, single phase,
240v. (more at higher voltages) I installed it on my compressor, because I did not like the fact that I used a general duty disconnect to switch it on.
It works great and makes turning the compressor on easier, and turning it off quieter. (the disconnect makes a loud BANG sound and is attached to the wall below our bedroom). It is a very simple product that wires into regular household electrical boxes.
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