Product details:

5 HP Single Phase Magnetic Starter Brand new 5 horsepower single phase 220-240 volt magnetic starter with a steel housing. This is a great quality starter with a built in overload which is adjustable from 22-34 amps. Also has a manual reset button that can be switched to auto reset. The steel housing has four 3/4"punch out holes for incoming and outgoing wires. Also included are three rubber surround gromets for the 3/4" holes to protect the wires if needed. Starter comes with wiring instructions. PROFESSIONAL INSTALLATION IS REQUIRED- Dimensions H x W x D: 9" x 5-1/2" x 5-1/2" - 5 HP - 220-240 Volt - Single Phase - Amp Rating: 22-34 Amps / Adjustable If you currently have a 5 HP air compressor and the contacts on your pressure switch keep burning up, a starter is what is needed to fix the problem. If you are using this starter on an air compressor, you will also need a pressure switch to control the starter. In this application the pressure switch controls the on and off of the starter depending on the pressure setting of the pressure switch.