ELM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 690V and used for circuit of A.C. 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1250A for infrequent changing over and starting of the motors.The products conforms to IEC60947-2 standard.

Note ∗: There are 4 types of N-pole for 4P breaker
A: Without current release components, N-Pole is always at making status, not makes and breaks with other three poles;
B: Without current release components, N-Pole makes with the other three poles(N-pole first makes then breaks);
C: With current release components, N-Pole makes and breaks with other three poles(N-pole first makes then breaks);
D: With current release components, N-Pole is always at making status, not makes and breaks with other three poles;