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What is needed to put a 240V outlet in a garage very close to a circuit panel with NO open slots available?

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2007-03-28 05:09:53
2007-03-28 05:09:53

an electrician. you may have to upgrade your service if not you will need an additional box to accomodate the new breaker Assuming you meet local code and license requirements, and know how to shut things off while you're working: The full circuit panel may be a service panel or a sub-panel with main lugs only (no main disconnect). If it's a sub-panel you need to find the breaker that feeds it from the service panel (if any) to make sure it has enough ampacity to run your 220 appliance on top of whatever is there already. Assuming the breaker and feeder conductors will support the additional load, you can add another subpanel (or replace the existing subpanel with a larger one). If not, you can wire a completely new feeder from the service panel to a new subpanel (or just a 220 disconnect/fuse for your new appliance). If the wiring is old, the minimum disturbance to the existing wiring is recommended: put in a new circuit from the service panel. Some subpanels include extra main lug terminals for feeding other subpanels. Otherwise you can either add another tap to the main lugs and run them to the new subpanel, or else replace two of the existing breakers with a 2-pole breaker that feeds the new subpanel. Put the new 220 circuit into the new panel along with the two old circuits removed from the old full panel to make room for the subfeed breakers.

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To hook up a 120 volts outlet, use a new outlet that is a protected type. It must be GFCI or be wired into a GFCI-protected circuit in an unfinished basement, bathroom, or garage that has damp areas.

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Depends on what you are asking about. I can tell you that all garage outlets must be protected by a GFCI circuit. You can install as many or as little as you want as long as there is at least 1 outlet on each wall. Any freezer or refrigerator must be on a dedicated circuit. There must be a light switch by the doorway mounted 48" to the top of the switch box. If you have 2 entrances into the garage then install a 3 way light switch so the lights can be turned on/off at both locations. Outlets cannot me mounted higher than 48" above the floor. I would install the outlets on 1 circuit and the lights on another circuit unless you only have a couple of lights. Use AWG #12 wire for the garage protected by a 20 amp breaker. If the garage is detached from the house then you need a disconnect in the garage. Any 240 volt outlet must be on a dedicated circuit protected by the proper breaker and correct size wire needed for the device.

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Yes, a space heater can be plugged into any outlet. Depending on what else is drawing current on the circuit will govern whether the circuit will trip or not. If the heater is plugged in and the circuit does not trip it can be left plugged as long as it is needed. If the heater trips after a few seconds, then try another outlet.


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