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  •   12 KV Indoor High voltage Handcart Type Vacuum Circuit Breaker VCB ZN63(VS1)-12
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12 KV Indoor High voltage Handcart Type Vacuum Circuit Breaker VCB ZN63(VS1)-12

Model: VCB ZN63(VS1)-12


Main advantages
Safe and reliable, able to meet operational requirements under special conditions
Over 22 years of manufacturing experience
Brand vacuum arc extinguishing chamber and fixed sealing pole
Reliable operating mechanism
Excellent operational system ensures stable quality and convenient delivery
Complete solutions, convenient ordering, and easy installation

Certificate: CE,Test reports
Production time: 7~ 12 working days
Warranty period: 12 Months
Delivery time: 15 days
Payment term: 50% deposit before production+50% balance before shipment(by T/T,D/P,Paypal)
  • General
  • Technical Parameter
  • ZN63(VS1)-12 indoor high voltage handcart vacuum circuit breaker is applied to 12KV, three- -phase, AC50Hz . It can provide control and protection for industrial and mining enterprises, power plants and substations, electrical facilities, and is suitable for frequent operation. The operating mechanism is integrated with the circuit breaker, and the design can be used as a fixed installation unit. It can also be a special propulsion mechanism 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. Item Unit Data
    1 Rated voltage KV 12
    2 Rated frequency Hz 50
    3 Rated lightning impulse withstand voltage (peak) KV 75
    4 Rated short-time power frequency voltage (1 min) KV 42
    5 Rated current A 630、1250 630、1250 1250、1600 2000、2500 1600、2000、 2500、3150、 4000、5000
    6 Rated short circuit breaking current KA 20 25 31.5 40
    7 Rated short circuit making current (peak) KA 50 63 80 100
    8 Rated short circuit duration S 4
    9 Rated operating sequence O-0.3s-CO-180s-CO        O-180s-CO-180s-CO (40KA)
    10 Rated single /back to back capacitor bank breaking current A 630/400
    11 Rated short circuit current breaking time Times 30
    12 Opening time MS 35~70
    13 Closing time ms 20~50
    14 Mechanical life Times 10000
    15 Rated energy storage and operating voltage V AC220/110DC220/110
    16 Contact stroke mm 11±1
    17 Contact overtrave mm 3.5±0.5
    18 Average closing speed m/s 0.5~0.8
    19 Average opening speed m/s 0.9~1.2
    20 Contact closing bounce time ms ≤2
    21 Three-phase opening,closing asynchronous ms ≤2
    22 The main circuit resistance μ  Ω ≤50 (630A)≤45 (1250A) ≤35 (1600~2000A)≤25 (more than 2500
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