Product Name: 12kv 630A 20ka Vacuum Interrupters Outdoor Electric Circuit Breaker Manufacturer Model NO.: 201k Certification: ISO9001-2000, CQC Function: Vacuum Type: Vacuum Poles Number: 3 Structure: Vacuum Installation: Fixed Arc-extinguishing Medium: Vacuum Speed: High-Speed Circuit Breaker Operation: Manual Type Breaking Capacity: High Voltage Circuit Breakers Warranty: 12 Month Trademark: ZGVE Transport Package: Standard Export Packing. Specification: Vacuum Origin: Wenzhou HS Code: 8538900000 Product Description 12kV 630A 20kA Vacuum Interrupters Outdoor Electric Circuit Breaker ManufacturerMain Technical DataMainTechnicalDataRatedVoltage12kVRatedCurrent630ARatedFrequency50HzRatedShort-timepowerfrequencywithstandvoltage(1min)42kVRatedLightingimpulsewithstandvoltage75kvRatedshort-circuitbreakingcurrent20KARatedshort-circuitmakingcurrent(peak)50kABreakingoperationsofratedshortcircuitbreakingcurrent30timiesRatedsiglecapacitorbankbreakingcurrent400ARatedshort-timewithstandcurrent20kARatedpeakwithstandcurrent50kARateddurationofshort-circuit4sMechanicalife10000timesContactclosingforceduetobellowsandatmosphere70±40NCounterforceatratedcontactstroke120±50NCircuitresistanceatratedcontactforce≤25μΩShelflife20yearsContacterosionlimit3mmWeightofmovingparts≤0.7kgMechanicalDataRequiredformatchedvacuumswitchgearRatedcontactstroke9±1mmAverageopeningspeed1.0±0.25m/sAverageclosingspeed0.65±0.15m/sAddedcontactforce1300/1600±100NContactbouncingdurationatclosingoperation≤2msContactbouncingbankamplitudeofopeningoperation≤2mmThree-polesimultaneity≤1msDimensional Drawing