... used in AC50/60HZ single-pole 230V or two, three, four-pole 400V circuit for overload and short-circuit ... protection as well as for unfrequent on-and- ... lighting circuit under normal condition. The product is suitable for industry, business, building, residence, etc. It ... 10)In; D(10~15)In.3. No. of pole: 1p, 2p, 3p, 4p.4. Breaking capacity ...