Pull Out 220 Volt Switch Wiring Diagram

Wiring a 20 amp 240 volt switch can be a confusing experience for the average homeowner used to working with standard 110 volt circuits.

Pull out 220 volt switch wiring diagram. Depending on whether you have a 110v or 220v circuit you will have either 3 or 4 wires. Look for the grounding screw labeled green or ground directly across from the neutral screw. One will ground a bare copper or green wire one will be neutral a white wire and one or two will be hot wires black or a combination of black and red. Pull on the green wire to make sure it doesn t slip out from the outlet.

Green earth ground is bonded throughout at the enclosures and the motor. A pull out disconnect switch gives a technician a safe way to work on high voltage appliances without the need to access the appliance s circuit breaker. The black wire power out wiring attaches to the other switch screw. The disconnect switch should be a 220 volt 2 pole type for both circuit wires.

Wiring your disconnect switch will vary slightly from one type of switch to another. Put the green wire into the port next to the grounding screw and tighten it with a screwdriver so it doesn t move around or fall out. The black wire power in source attaches to one of the switch screw terminals. The national electrical code requires that all appliances over 300 volt amps or over 1 8 horsepower use some sort of means of disconnect.

For one thing both supply wires for this switch carry voltage. I will make sure to create a wiring diagram soon. Explanation of wiring diagram 1. Switch wiring shows the power source power in starts at the switch box.

Circuit electrical wiring enters the switch box. The standard 220 volt wiring for an air compressor includes no polarity for the red and the black wire so you cannot wire them backwards.