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Molded case DC circuit breaker 4Pole, 250A, 1000VFeatures:Molded case circuit breaker for solar power system, DC circuit overcurrent protection and controlling.Rated voltage up to 1000V DC, maximum current 250A.Molded case circuit breaker is mainly used in large solar power system which are applied for solar DC combiner box, inverter and DC power distribution cabinet.Also suitable for electric vehicle charging stations, commercial battery storage.Can be applied in grounded or ungrounded systems.Complies with IEC standards for protection and isolation of DC circuits up to 1000V and rated operating current from 65A to 250A.Protection against: overload, short circuit, infrequent operation. Tested to extreme environmental conditions from -40°C to 85°C.Technical specifications:Pole: 4P.Rated voltage (Ue): DC 1000V.Insulation voltage (Ui): DC 1000V.Max. rated current (In): 250A.Ultimate breaking capacity (Icu): 20KA.Rated impulse withstand voltage (Uimp): 8kV.Mechanical life: 14000 cycles.Electrical life: 2000 cycles.Protection class: IP20 (connection terminal), IP40 (housing all sides).Certificates: IEC 60947.2, GB14048.2.Dimensions: 165x140x88 mm.Wire size (min-max): 50-120 mm².Color: black.Operating temperature: -40°C to 85°C.Warranty: 24 months.