Molded case low-voltage circuit breakers are classified according to extinguishing medium

1. The circuit breaker using air as the arc extinguishing medium is called air circuit breaker (air switch)< Br>2. The circuit breaker using inert gas as arc extinguishing medium is called inert gas circuit breaker (inert gas switch)< Br>3. Circuit breakers that use oil as the arc extinguishing medium are called oil circuit breakers (oil switches)< br>