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Electrical PanelWhen updating an electrical service, it's important to know how to wire an electrical panel, often called a breaker panel, the correct way. In this easy to understand article, you'll learn how to mount the panel, how to pull the wires, how to strip the wires and connect them, what the wire colors mean and where they connect, how to connect the feeder wires to the main breaker, and learn how to make your installation look neat and professional.

Electrical panels are fed from either the service meter or the electrical disconnect. The wire size depends on the size of your electrical panel installation and meter size. The most common sizes used in residential installations is 100 and 200-amp breaker panels. In 100-amp installations, #2 thhn wire is required to feed the panel. In 200-amp installations, 3/0 thhn wire is needed. Both installations have an single-phase installation with two "hot" wires feeding them. Do you know how to wire the feeder wires? How about the branch circuit wiring?

Photo: Timothy Thiele


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