AL (Alarm switch) is a switch which electrically displays tripping state of a circuit breaker.
The markings of the switch are 8/ALa, 96/ALb and 95/ALc.
*When the circuit breaker itself is ON or OFF, 96/ALb and 95/ALc are conductive states.
*When the circuit breaker itself trips, 8/ALa and 95/ALc are conductive states.