Return the panel cover to the main electrical box. ![]() Remove the knockout on the panel’s front that was used to hide the previously empty breaker slot. Two hot wires will connect 10-3 wires to a 30 amp breaker at 240 volts, while one hot wire will connect a 10-2 wire to a 30 amp breaker at 120 volts. Remove the breaker and screw the hot wires to it. Make sure that the breaker grabs the live bus bars. Connect the hot wires to the breaker.Īttach the breaker to the panel to know how long the hot wires would be. Take note that for CAFI/GFCI breakers, you may need to connect the neutral pigtail wire first before screwing the black and white conductors into the breakers.Īlso, you cannot put two neutral wires or one neutral wire and a grounding wire in one screw. Then, connect the neutral wire to the neutral bar. Cut the conductor to the needed length, and screw it into place. Note that these parts may share one spot.įirst, connect the ground wire to the grounding bar. Check the grounding bar and neutral bar in a panel. Peel off the cable jacket but, again, remove a few inches only. Connect the neutral and ground wires at the panel. Secure the breaker cable with a clamp and a staple. Avoid the live wires serving the panel (they are still live even if the main breaker is off). Remove a knockout from the main panel, and thread the wire through the knockout. Also, the cable should be long enough to reach the floor from its place near the panel cut it at this length, so you’ll have enough slack for the next steps. Run the cable into the main panel.īefore you start wiring a 30 amp breaker, turn off the main panel. Peel off the cable jacket, but leave around ¼ inch of the insulation around the cable clamp.Ĭut the ends of the insulation of the wires using a wire stripper (remove a few inches only), and connect the right conductors to the right holes in the 30A outlet using a screwdriver. Meanwhile, a 10-2 cord for 120 volts will have only one hot wire, one neutral, and one ground. A 10-3 cable for 240 volts will have two hot wires, one neutral, and one grounding wire. Run the wire through the outlet box, and use a cable clamp to secure the wire.Ĭheck the wiring diagram when wiring a 30 amp receptacle. Remove a knockout from outlet box, but drill a hole in the box first if the knockout locations are not suitable for your wiring. Mount the outlet box in your desired location and install a 30 amp outlet in the box. Do not connect the wire to the panel yet for your safety. Use a 10-3 wire for a dryer at 240 volts, or a 10-2 wire for an RV at 120 volts. Mark the location where the wire will pass through, drill a hole there, and run a wire from the panel to the outlet location. Thread the electrical wire from the panel to the outlet. If you don’t have any space for adding a 30 amp breaker, then you might want to combine your other circuits using a tandem breaker (two breakers in one slot) to make room, if possible. Open your panel and look at the available slots. ![]() Check for available circuit breaker slots in your panel. Read more about “What is the Difference Between Single Pole and Double Pole”. If you choose to buy these 30 amp breaker boxes, please follow the instructions that come with them. A 30 amp RV outlet box with breaker is available in the market, so it should be easy to get one. ![]() This guide focuses on a connection where the breakers are separate from the main electrical panel. Take note that you may hire an electrician if you do not want to do the installation by yourself. We must choose the right items to hook up a 30 amp breaker.ģ0A, 120V single pole breakers are fine for a camper or RV charging setup, while 30 amp double pole breakers used for 240 volts are good for a dryer.
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