An important component in your main electrical service panel is commonly known as the breaker. If you’re a homeowner, surely you have visited yours a few times over the years. But what exactly is it? And what does it do? Let’s go over the importance of the breaker and what its doing for your home.

If you read our article on the home electrical system a few months back, you will know which step the service panel comes in receiving electricity for your home. The service panel is the gateway for all electricity in your home. After electricity comes through underground or overhead power lines, it goes to your electrical meter and then to the service panel. Electricity branches off from here and travels to the rest of your home. Within the panel are circuits for different areas for electricity to travel. Shutting down a circuit can cause power loss to a part of the home, maybe a room or two. But because the home is on many different circuits, power can remain active in the rest of the house.

After electricity arrives at the service panel, it travels to a circuit. The circuit is a loop in which electricity travels from one end to the other. The breaker splits up to 100 amps or more into the circuits to distribute the power. Usually each circuit in a common residential home operates at 15 amps. The breaker is designed to “trip” if it receives an excess of electricity. If a power surge occurs on the outside of the home, for example a lightning strike, the service panel will stop the flow and turn off. If a surge happens on a circuit within your home, the breaker will also shut down that loop to protect the rest of the house.

Over time if work on a service panel is not completed correctly, the circuits could blow more frequently due to overloading. Parts in the panel can become outdated, loosen, or get burned out. If a service panel is not maintained and up to code, it also poses specific risks, making your home more susceptible to fires and electrical surges.

The Importance of Residential Circuit Breakers Circuit breakers have an important job in the day to day functioning of your home’s electrical system. These breakers are attached or connected to an electrical circuit. They are designed to prevent any further power flow continuing through the circuit in case there is an arc, short or a power surge. Circuit breakers can fail or go bad, and in such cases, they require immediate attention. Because if a circuit breaker is no longer functioning, it cannot provide your appliances and electrical system the protection they need.

Where are Circuit Breakers? Circuit breakers are located in the circuit breaker box. Some homes have a single main breaker box while other homes may have one main breaker box plus several small breaker boxes. It is important to know where your home’s circuit breakers are located so you can check them in the event of an emergency, or if a breaker gets tripped and needs to be reset.

Finding a Bad Breaker If a circuit breaker gets tripped, you need to reset it. A tripped breaker appears to be halfway between the on and off position. A circuit breaker may not need to be replaced, it may just need to be reset. Turn off all the lights and electrical appliances operating on that particular circuit. Flip the breaker back to the “on” position.

Some circuit breakers have to be turned completely off before they are turned back on. Test the circuit breaker after it has been reset by turning the breaker back on and then adding all of the devices or appliances back one at a time. If every item operates again, a voltage tester is not necessary.