vacuum circuit breaker / high-voltage / AC / three-phase
VT2A (ZN73C)-12 series Ningbo Tianan (Group) CO.,Ltd.



  • Type:


  • Electrical characteristics:

    high-voltage, AC, three-phase

  • Operating mode:

    manual reset

  • Other characteristics:

    compact, indoor

  • Current:

    Min.: 630 A

    Max.: 2,500 A

  • VAC:

    12 kV


VT2A(ZN73C)-12 Type Indoor AC High Voltage Vacuum Circuit Breaker is an indoor equipment with three-phase AC 50HZ, rated voltage 24KV, which is suitable for various kinds of load and frequently operation occasion and it can be used in industry and mining, enterprise, power plant and substation for protecting and controlling electric equipment.
This product complies to related requirements of GB1984, JB3385, DL403 and IEC.

a. Adoption of the most advanced and effective vacuum extinction principle with strong break ability and little chopping current.

b. Longer electrical endurance, time of breaking rated current can reach 20000 times highest.

c. With reasonable arrangement of front and back separated install structure, it can reduce load loss and noise largely and operate reliability.

d. It is side mount fixed install unit, with characteristics of compact structure, small volume.

e. Reliable interlock function can prevent all kinds of misoperation.

f. Highly cost effective.

g. It reduces operation cost because of less maintenance.

Other Ningbo Tianan (Group) CO. products

Medium Voltage