Vb4-11kv/630A-25ka Draw-out Type Indoor Vacuum Circuit Breaker (VCB)

Serial
NumberItemUnitData31.5kA40kA50kA1Rated voltageKv12/17.5/24kV2Maximum working voltageKv123Rated currentA1250 1600
2000 25001250 1600
2500 31501250 2500 31504Rated short-circuit break currentKA31.540505Rated short-circuit close current (peak value)KA801001256Rated withstand current (peak value)KA8010012574S Rated little withstand currentKA31.540508Rated insulation levelIndustrial frequency
Withstand voltageKA42/50/60Thunder impulse
Withstand voltage75/95/1259Rated operation orderOff-0.3S on and off-180S-on and off10Mechanical lifeTimes1000011Rated short-circuit current break and close timeTimes5012Speak and move organization amount
Assign the curre tof the floodgate(DC)V11022013Speak and move organization amount
Equal to the curre tof the floodgate(DC)V11022014Switching distance of the contactmm>1115Ultra journey(touches the head
Springand compress length)mm4+/-0.516Three-phase breaking into shut
Floodgate sex of the same periodMs<217Touch the head and shut a
Floodgate of time of bouncingMs<218Average speed of breaking brakeM/s0.9~1.219Average speed of closing brakeM/s0.6~0.820Time of breaking brakeOperate it under the
Voltage highestS<0.05Operate it under the
Voltage lowest<0.0821Time of colsing brakeS<0.122Each the resistance of main return circuitU Ω<4023Allowance abrasion cumulated thickness
Of the moving and stationary contactmm3