An Electrical Circuit Breaker is a vital component in electrical systems, serving as a safety device that protects circuits from damage due to excessive current or short circuits. These typically require a separate power source, such as a battery, although some high-voltage circuit breakers are self-contained with current transformers, protective relays, and an internal control power source. The circuit breaker contacts must carry the load current without excessive heating, and must also withstand the heat of the arc produced when interrupting (opening) the circuit.
Attributes:
• Safety device that interrupts excessive electrical current and protects circuits
• Helps prevent fires, equipment damage, and electrical hazards
• Incorporates overload and short circuit protection mechanisms
• Automatically detects and responds to overloads and short circuits
Application:
An Electrical Circuit Breaker is designed to protect an electrical circuit from damage caused by overcurrent, overload, or short circuit.