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What is the function of a circuit breaker?

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Quick Answer

The function of a circuit breaker is to cut off electrical power if wiring is overloaded with current. They help prevent fires that can result when wires are overloaded with electricity.

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What is the function of a circuit breaker?
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Full Answer

Fuse boxes house circuit breaker switches. They are typically located in a closet or in a basement. On average, a circuit breaker box contains 12 switches. Large appliances such as a washer or dryer typically have a dedicated switch. Large rooms, such as a living room, usually have an individual switch.

A newer development in circuit breaker technology is ground fault circuit interrupters. Their purpose is to prevent electrical shock to people.

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