How Do You Wire Electrical Sub Panel?
Electrical sub-panels are used to expand the circuit breaker capacity of an existing service panel as well as a load center in areas of high load concentrations i.e. an all electric kitchen or woodworking shop. Sub-panels are wired the same as the main service panel with a couple of important exception. Unlike in the main service panel, the neutral bar in a sub-panel can’t be bonded over to (physically connected to) the system grounding bar or to the sub-panel enclosure. Unlike the main service panel, the sub-panel is not required to have a main disconnect breaker. The sub-panel can be a main lug panel protected by a breaker installed in the main service panel. Mark the spot where the sub-panel is to be located. Locate the panel as close as possible to the main service panel if it’s to be used to extend the breaker capacity of the main service panel or in the area of high load density if it’s to be used as a load center panel. Hold the panel in place against the wall using the level to
