Air circuit breakers come in a variety of capacity ranges depending on their application, typically measured in amperes (A) and voltage levels. They might range from low-voltage models (hundreds to thousands of amperes) used in commercial or industrial settings, to high-voltage types (tens of thousands of amperes) for large electrical networks.
An ACB-Air Circuit Breaker Uses
An air circuit breaker uses air as its primary insulating medium and arc-quenching agent. Here’s how it works:
Insulating Medium: When the breaker is in its closed position, the air between the contacts acts as an insulator, preventing electrical conductivity. This is fundamental to maintaining a stable circuit under normal operating conditions.