Electrical Service Entrance Box

Service entrance strap zinc plated steel se and seu cable 3 3 0 and 4 0 cable.

Electrical service entrance box.

It s the steel box that holds your home s circuit breakers. The three lines may be independent conductors or housed in a three conductor cable called a triplex cable as shown in the figure. Fuse box fuse panel circuit breaker panel today most homes have what is officially called the electrical service panel or simply the service panel a circuit breaker panel is not exactly the same as the fuse box because it has mechanical toggle switch circuit breakers not fuses but. Circuit breaker service panels and fuse boxes.

The service drop illustrated in figure 1 has two 120v lines and a neutral conductor. What the main service panel does. You should not locate a box on the opposite side of the home from the meter. Well connected to service entrance cable sec frayed sec cables expose inner wiring to damage or deterioration and are a source of water entry in the electrical meter box as well as into electrical panels if the panel is located lower than the sec.

The service entrance equipment includes the meter meter base outside disconnect and the mast. Breaker panels load centers service panels or breaker boxes. An overhead power connection from the utility lines to the service entrance is called the service drop. The main service panel is usually a gray metal box located somewhere along the inside surface of an exterior wall.

Electric service panels have a number of different names. Get free shipping on qualified electrical boxes conduit fittings or buy online pick up in store today in the electrical department. When needed the circuit breakers turn off or trip the circuits that carry power throughout your home. Service raceway the conduit containing the service entrance conductors.

The main service panel is the distribution center that splits the main electrical service into individual branch circuits that run through your home to power the lights outlets and individual appliances. Abandoned sec cables may not have been properly disconnected electrocution hazard. In general this restriction in the nec encourages you to determine the circuit breaker box location and from that determine the service entrance equipment location.