Breaker, Circuit

Definition

A circuit breaker is a switch that stops the flow of current by opening the circuit automatically when more electricity flows through the circuit than it can handle. Resetting may be either automatic or manual.

Purpose

Circuit breakers protect electrical circuits from damage caused by overloads or short circuits. They prevent electrical fires and equipment damage by interrupting the current flow when it exceeds safe levels.

Examples of Use

1. Home Electrical Systems: Circuit breakers are installed in residential breaker panels to protect household circuits from overloads.
2. Industrial Applications: Factories use circuit breakers to safeguard heavy machinery and equipment.
3. Commercial Buildings: Circuit breakers in commercial electrical panels protect lighting, HVAC systems, and other electrical installations.

Related Terms

• Fuse: A protective device that melts to break the circuit when the current is too high.
• Electrical Panel: A distribution board housing circuit breakers and other protective devices.
• Overload: A condition where the current exceeds the safe capacity of the circuit.

Notes

Regular inspection and maintenance of circuit breakers are essential to ensure they function correctly. Always follow safety guidelines when resetting or replacing circuit breakers.