Garage Sub Panel Wiring Diagram

Aluminum is a lot cheaper especially for long runs but the size of wire needed for a typical 100 amp sub panel in garage or shed may exceed what the sub panel can handle.

Garage sub panel wiring diagram. How to install a main breaker panel in a garage. Careful planning for your sub panel with immediate and future load considerations will help you understand how to size your sub panel. Dig an 18 inch deep trench for the outdoor electrical wire which you will run from the main panel box to the garage sub panel. Sub panel in detached garage supplied from a service panel in a house by way of a four wire feeder.

Use 1 14 inch pvc conduit for a 100 amp sub panel or 1 inch pvc conduit if the sub panel is 50 amps or less. Grounds and neutrals in electrical panel. How to wire grounds and neutrals in sub panels all the neutrals and ground wire and terminal bars must be separated from each other and your sub feed should be a 4 wire cable that has a separated insulated neutral wire and a separate ground wire. Basic residential wiring duration.

Two hots black neutral white and a ground bare copper or green. More about installing a sub panel in an attached garage. Sub panels sub panel electrical wiring for the home electrical sub panel wiring considerations for the home complete with pictures. There is already existing wiring going underground from the house to the garage which will no longer be used.

Run the conduit from the garage to the main panel box. That is as an example the lug in sub panel can handle 1 4 wire whereas you may need bring in a 10 wire due to the fact you have a long run. More about wiring a sub panel. The garage is about 30 from the main panel in house and i will of course get an exact length before selecting the proper gauge wiring.