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  •   ZN63-12 Indoor High Voltage Fixed Vacuum Circuit Breaker 210MM VCB
  •   ZN63-12 Indoor High Voltage Fixed Vacuum Circuit Breaker 210MM VCB
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ZN63-12 Indoor High Voltage Fixed Vacuum Circuit Breaker 210MM VCB

Model: ZN63-12


ZN63(VSI)-12 series indoor high-voltage solid vacuum circuit breaker, introduces innovative solid insulation and epoxy sealing tech.
It integrates the vacuum interrupter, main conductive loop, and insulation support into a solid-sealed pole, resolving environmental tolerance issues.
The breakthrough patented ventilation tech tackles heat dissipation concerns. Moreover, the ZN63(VS1)-12 series is China's first maintenance-free breaker, featuring a high-life vacuum interrupter, epoxy casting, and reliable permanent magnet operation.
It uses photoelectric proximity switches and electronic power supply for hassle-free operation.
Certificate: CE,Test reports
Production time: 7~ 12 working days
Warranty period: 12 Months
  • General
  • Technical Parameter
  • ZN63(VS1)-12 indoor high voltage fixed vacuum circuit breaker is suitable for three-phase,AC50Hz with 12KV ratedvoltage.It can provide control and protection for industrial and mining enterprises,power plants and substations,and electrical facilities,and is suitable for frequent operation.The operating mechanism is integrated with the mainbody of the circuit breaker,and the design can be used as a fixed installation unit.It can also be special propulsionmechanism to form a handcart unit.The main loop adopts the integral solid pole to realize the miniaturization,high reliability and free-maintenance of the circuit breaker.It can be used in KYN28A-12 (GZS)and other center-mounted handcart switchgears.The fixed type could also be used in the XGN series fixed switchgear.



  • No. ltem Unit Data
    1 Rated voltage KV 12
    2 Rated frequency Hz 50
      3 Rated insulation level min power frequency withstand voltage   KA To earth/phase to phase 42/48
    Lightning impulse withstand voltage (peak To earth/phase to phase 75/85
    4 Rated short circuit breaking curren KA 20 25 31.5 40
      5 Rated current   A 630 630 1250 1250
    1250 1250 1600 1600
    6 Rated short-circuit withstand current(RMS)   KA 20 25 31.5 40
    7 Rated peak withstand current[peak] 50 63 80 100
    8 Rated short circuit closing currentlpeak 50 63 80 100
    9 Rated short circuit current duration S 4
    10 Mechanical life Times 20000
    11 Secondary circuit operating frequency withstand voltage (1 min) V 2000
    12 Raled operaling sequence O-t-CO-tl-CO
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