With this wiring both the black and white wires are used to carry 120 volts each and the white wire is wrapped with electrical tape to label it hot. The outlet should be wired to a dedicated 20 amp240 volt circuit breaker in the service panel using 122 awg cable.
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110 volt 20 amp plug wiring diagram. The hot wires connect to a double pole breaker. To install a 20 amp 220 volt outlet you need 12 awg cable with two hot wires and a ground. No neutral wire is required. 220 volts 30 amps wire connections for x y w 240 volt receptacle dryer outlets the black wire attaches to outlet terminal x the red wire attaches to outlet terminal y. A receptacle is a device that supplies power to an electrical load through a cord and plug. The procedure for 110 volt plug wiring is made easier by the fact that youre dealing with 14 or 12 gauge wires instead of the beefier wires needed for 220 volt circuits.
This involves replacing the 2 pole 20 amp circuit breaker with a 2 pole 15 amp circuit breaker and replacing the 20 amp outlet with the appropriate 15 amp 220 volt female outlet that matches the male plug that came with the air conditioner. A 240 volt plug is the same as a 220 volt plug and its for a larger appliance that needs more power than most household devices. All that is needed is to convert the existing circuit from 20 amp to a 15 amp. 15 and 20 amp plugs will fit into a 20 amp receptacle. If theres room for one inside the plug casing an underwriters knot or ul knot secures the wires so you cant pull them out when you pull the plug out by the cord. This is a 220v 20 amp outlet as shown in the how to 220 volt outlet video likely to be used this for larger power tools in your garage or shop or perhaps a wall air conditioner.
The most common receptacle is a duplex which actually contains 2 receptacles. 20 amp plugs will not fit into a 15 amp receptacle. Common household receptacles are rated for 15 and 20 amps. Wiring a 20 amp 240 volt appliance receptacle. This outlet is commonly used for a heavy load such as a large air conditioner.
Gallery of 110 Volt 20 Amp Plug Wiring Diagram
