Yatai Electrical Group Co., Ltd.
Main products:Circuit breaker,AC contactor,Dual Power,meter,power transformer
Contact Us
  • Contact Person : Mr. Chen Power
  • Company Name : Yatai Electrical Group Co., Ltd.
  • Tel : 0086-577-89008222
  • Fax : 0086-577-89736535
  • Address : Zhejiang,Wenzhou,Liushi,Yueqing
  • Country/Region : China
  • Zip : 325604

ZN73,AH3,AH5, VEP-12,VD4, VS1, EV12, VEX vacuum circuit breakers VCB-BBB

ZN73,AH3,AH5, VEP-12,VD4, VS1, EV12, VEX vacuum circuit breakers VCB-BBB
Product Detailed
1)No.1 Vacuum circuit breaker factory 2)Export to many countries 3)23 years' manufacture experience

ZN73A-12 Series permanent magnet type indoor high voltage vacuum circuit breaker

ZN73A-12 Series permanent magnet type indoor high voltage vacuum circuit breaker is a three-phase AC 50Hz, rated voltage of 12kV indoor switchgear. I loaded the company with its own research and development of permanent magnetic actuator for industrial and mining enterprises, power generation and substation facilities as electrical control and protection purposes. The product has high reliability and long life characteristics, especially suitable for frequent operation, repeatedly breaking conditions, such as short-circuit current of the place.

Main Features:

1. High reliability, long life, maintenance-free

2. China's first permanent magnetic actuator mechanical life of up to 100,000 times

3. With the traditional actuator compared without mechanical removal, locking devices, parts and components significantly reduced the number of hours worked with only one moving parts, low failure rate

4.Actuator performance and interrupter breaking. Closing the features needed for a very consistent

5. All sub-reliable operation of the bistable gate.

6.With anti-skip function

7.With controlling power low-voltage alarm refuse to close-

8. Mechanical manual sub-sub-gate and electric gate at the same rate, in the secondary power supply fault conditions, the application of an emergency sub-gate.

9. AC and DC energy storage operation type, operating current is less than 2A, can be done o-co-o operation within 2 hours after the blackout .

10. Highly reliable operation of control circuit module that can be tolerated in the run-time lightning, surge and other harsh conditions.

11. Versatility, installation size and ZN63 VS1 compatible with other products.

The use of environmental conditions:

1.Ambient temperature: not higher than +40 °C, not less than -25°C

2. Altitude: not exceed 1000m. plateau type not exceed 3000m

3. Relative humidity: daily average is not more than 90%, month average is not more than 90%.

saturated vapor pressure daily average is not more than 2.2 × 10-3MPa, month average is not more than 1.8 × 10-3MPa. The temperature dropped rapidly during the period of high humidity is that it may Gel.

4. Earthquake intensity: not more than eight.

5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

General structure drawing and installation size

Mainly technical parameters
1Rated voltageKV12
2Rated insulation level1min Frequency voltageKV75
Rated Lightning Impulse voltage tolerance42
3Rated currentKA2031.540
4   Rated short-circuit breaking currentA630 12501250  3150 1250 4000 
5Rated short-circuit closing current (peak)KA2031.540
6Dynamic Stability rated current (peak)5080100
7Rated thermal stability of current (RMS)5080100
8Rated short-circuit breaking current breaking number times303020
9Rated operating sequence 0-0.3s-CO-180s-CO
10Rated thermal stabilization timeS4
11   Mechanical lifeTimes ≥50000      ≥50000     ≥30000
12Permanent magnetic actuator and transmission part of the Mechanical lifeTimes  ≥10000      ≥10000    ≥10000
13Rated single capacitor breaking currentA630
14Rated back to back capacitor breaking current400
15Rated breaking current-stepKA12.6    16

VS1 Series Indoor High-Voltage Vacuum Circuit Breakers


ZN73,AH3,AH5, VEP-12,VD4, VS1, EV12, VEX vacuum circuit breakers VCB-BBB

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