Circuit breaker

A circuit breaker is a safety device in an electrical system that automatically disconnects electrical power when it detects a fault, such as an overload or short circuit. Think of it like a switch that trips to prevent damage to wires and appliances, and to reduce the risk of fire. When the issue is fixed, the breaker can be reset to restore power. It ensures electrical safety by protecting the system from excessive current, much like a thermostat prevents overheating in a device.