This VCB is the new green generation VCB. It adopts monop.le vacuum interrupter, which is safe, reliable and can stand extreme low temperature. The N2 of high purity is filled as insulation gas between vacuum interrupter and ceramics. The spring-loaded cam linkage makes remote-control possible. This VCB has simple structure, high current breaking ability, safe operation and no risk of explosion. It is suitable in places of frequent operations for the loads close-opening and the fault current interruption.