It may also turn off a property’s power supply, unlike branch breakers that can only shut off power to the circuits they serve. ![]() However, we can see subtle standout qualities for the former.įor one, its large size connotes the bigger amperage loads it can handle. Technically, there’s not much difference in protecting function and installation. Is There a Difference Between a Main Breaker and a Regular Breaker? It acts as a sub panel where you can immediately hook your wires to help distribute electricity more optimally in your home or help overcome challenges such as when you run out of circuit slots in your main electrical panel. ![]() You need to use its brand and model number as a reference to know whether you can put a main breaker in a main lug panel (i.e. Yes, as long as the latter’s purposely designed as a convertible MLO panel by its manufacturer. On the main breaker load center, you attach the wires to the breakers’ own lugs.Ĭan You Put a Main Breaker in a Main Lug Panel? You hook your conductors directly to the lugs in a main lugs-only panel.The main lug doesn’t do that but instead acts as a sub panel that helps to distribute electricity and increase the number of circuits. The main breaker provides overcurrent protection and control over your property’s major circuits.You won’t need to attach the wires to the lugs on the panels if this is the case, since they already need to connect to the breakers directly. If you do install a main breaker into the main lug panel, typically with the help of a breaker kit, it can serve as the main breaker box. Of course, the primary difference is that there’s no overcurrent device here, which is why these panelboards are labeled as “main lugs only.” The panel wiring and conductors in various circuits hook onto those lugs, like how feeder wires connect to a circuit breaker. This panel’s characterized by the electrical lugs located on top of it – which is, incidentally, where the main breaker in a panel is often located. Don’t confuse it with the main breaker panel, just because it’s got “main” attached to it. Plenty of electricians refer to it as the main lug sub panel. You can reset it by turning it from ‘Off’ to ‘On’ twice and then finally leaving it in the ‘On’ position. ![]() In main breaker load centers, you can shut down the power supply to your entire home or certain areas of it just by switching the main breaker from ‘On’ to ‘Off’. We call it the main breaker because it acts as the central supplier of electricity to all the different circuits of your property, and, in turn, all its rooms. In the main breaker panelboard, expect all feeder wires to attach to a separate breaker. ![]() It comes with a single disconnect meant for all loads that the load center feeds, which is why it’s often used as the central switch to shut off or turn on (i.e. It protects all service entrance wires against overcurrents. If you look at a typical main electrical service panel or load center, you’ll see an inordinately large breaker, usually positioned on top of all the other breakers.
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