AM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 500V and 800V and used for the circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1600A for infrequently changing over and starting of the motors. The products conform to IEC60947-2 standard.
Main Technical Specification
Note : 6A without thermal protection. The N-pole of four-poles breaker is sited at the right side of the product has four types:
Type A : Without current trip-release on N pole which making all the time, not closing and opening with the other three poles.
Type B : Without current trip-release on N pole which closing and opening with the other poles.
Type C : With current trip-release which closing and opening with the other three poles.
Type D : With current trip release which making all the time not closing & opening with the other three poles.
The thermodynamic release of a circuit breaker provides the feature of inverse time-delay, while the magnetic release is the instantaneous operation as shown Technical Specification (distribution circuit breaker).