Circuit Breaker

Definition

A circuit breaker is an electrical device designed to protect an electrical circuit from damage caused by overcurrent, overload, or short circuit.

Purpose

The primary purpose of a circuit breaker is to interrupt the flow of current when a fault is detected, preventing damage to the electrical system and reducing the risk of fire or electric shock.

Examples of Use

• Circuit breakers are used in residential electrical panels to protect home wiring.
• Industrial facilities use circuit breakers to safeguard machinery and equipment from electrical faults.
• They are integral in the power distribution networks to protect and control the flow of electricity.

Related Terms

• Fuse: A simpler overcurrent protection device that must be replaced once it has operated.
• Relay: An electrical switch operated by an electromagnet used in control circuits.
• Surge Protector: A device designed to protect electrical appliances from voltage spikes.

Notes

Regular maintenance and testing of circuit breakers are essential to ensure their reliability and proper functioning.