Air Circuit Breaker (ACB)

An Air Circuit Breaker (ACB) is a device used to protect electrical systems by automatically disconnecting power when it detects an overload or a short circuit. It uses air as the insulating and arc-quenching medium. When a fault occurs, the ACB quickly opens its contacts to stop the flow of electricity, preventing damage and ensuring safety. Commonly used in large buildings and industrial settings, it can handle high voltage levels and is designed for frequent operation, providing reliable protection and control of electrical circuits.