Precautions For Installation And Maintenance Of Low Voltage Circuit Breakers

Since Lv Pole Mounted Circuit Breakers DC current does not have the characteristic of zero crossing like AC current, it is difficult to interrupt the DC short-circuit current (even the fault current with a small multiple) and extinguish the arc. Therefore, the wiring should adopt the method of two-pole or three-pole series connection to increase the break points so that each break points bear part of the arc energy.