... single pole 230V, two,three, four poles 400V,rated current 63100A,for protecting the circuit from overload and short circuit ... ,IEC60947-2standards.Main Technical Data1. Rated current: 63A,80A,100A.2. Rated voltage: 230/400V. 3. No. of pole: 1p, 2p ... compact design, lightweight,elegant appearance, high breaking capacity, swift tripping and long service life. OB8-100 NC100 100A 3 phase circuit breaker