DZ20 series molded case circuit breaker (hereinafter referred to as breaker), rated insulation voltage of 660V, AC 50Hz, rated working voltage of 380V (400V) and below, rated current from 16A to 1250A. In general used in distribution, of which Y, J, G-type rated current 225A below the shell and 400A of the Y-type circuit breakers can also be used as motor protection. Under normal circumstances, the circuit breaker respectively can be as the lines infrequent converted, and infrequent start motor for use.
Four-pole circuit breaker is mainly used for AC 50Hz, rated voltage 400V and below, rated current from 100 to 630A three-phase four-wire system, it can protect the user and the power is completely disconnected to ensure the safety, to solve any other circuit breaker can¡¯t overcoming the neutral current is not zero defects.
Distribution circuit breakers, used in the distribution of electricity in power distribution networks, and can be used as lines and power equipment overload, short circuit and under voltage protection.Motor protection circuit breaker in the distribution network as the mouse cage motor starting and running carve off as motor overload, short circuit and under voltage protection.
This product complies with IEC60947-2, GB14048.2 standards