Hooking Up 240 Volt Breaker
I just got a craftsman 60 gallon 3 1hp 240v air compressor off of craigslist and im wondering how to wire it up.
Hooking up 240 volt breaker. A typical 240 volt 30 amp circuit includes a double pole circuit breaker which has two terminals for the two hot wires. Two characteristics of 240 volt wiring are important when you re installing a new circuit breaker. It should run till the end of 240 volt receptacle inside breaker box. Once you ve confirmed the power is off fish wires from the receptacle location to the panel.
Punch out one of the knock outs on the top of the box and install a cable clamp threading the cable through the clamp and into the box. Route the cabling from the 240v circuit into the breaker box. Now the wire for ground needs to run through similar bar. Adding a 240 volt baseboard heater usually requires a new 20 or 30 amp double pole circuit breaker and new circuit wiring to supply one or more heater units.
Double pole breaker is basically suitable for 240 volt installation. A 240 volt 3 wire receptacle has three prongs two hot and one ground to accept a 3 prong plug. Electricians generally install 240 volt heaters since they use lower amperage and are more energy efficient than 120 volt heaters. Step 4 cut off the outer sheath of your 4 strand cable to reveal its inner wires.
The second is that 240 volt circuits carry high amp current. After inserting ground wire to the end of 240 volt receptacle tightly screw it. That means you need heavy gauge wire to prevent overheating. The house has 120 volt outlets.
This is a dedicated circuit that serves only the heater s. Klein makes the best imo and here s a link to the same ones seen in this video. Attach the white wire to the neutral bus bar and the ground wire to the grounding bar. Before installing a 240 volt receptacle shut off the main breaker.
You can check that the power is off by using a voltage tester and testing both plugs. The breaker for a 240 volt installation is a double pole breaker because of the two 120 volt hot wires totaling 240 volts. Running a wire from a new breaker in the breaker panel to a workshop area in the basement for a 240 volt circuit for my table saw and bandsaw http woodgear. Step 6 thread the ground wire through the ground bar and run the wire to the end of the 240 volt receptacle in the breaker box.
The wires usually are black or red but one may be white if it is labeled as hot with a black or red stripe near each end. It comes with two 120 volt hot wires summing up to 240 volts. Secure the cable in the clamp.