... Circuit Breaker / MCB Standard:GB10963,IEC60898 Pole No. 1-4 pole Current:1,2,3,4,6,10,16 ... mainly used in AC50/60HZ single-pole 230V or two, three, four-pole 400V circuit for overload and short ... 10)In; D(10~15)In.3. No. of pole: 1p, 2p, 3p, 4p.4. Breaking capacity (see ... Feature1. Much higher short circuit breaking capacity.2. Dual-connection convenient for both standard busbar and conductor connection ...