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VS1-12(ZN63A-12) 12KV Indoor Vacuum Circuit Breaker(12kV VCB)

12KV Indoor Vacuum Circuit Breaker(12kV VCB)

Additional information

Product Details:

VS1-12 12KV Indoor Vacuum Circuit Breaker(12kV VCB)


General Introduction:

VS1 -12KV fixed type indoor vacuum circuit breaker is rated voltage 12kV, three-phase AC 50Hz/60Hz Indoor high-voltage switchgear ,applied for power stations, substations, and industrial and mining enterprises to control or  protection transmission and distribution systems , specially for the important high altitude breaking load and frequent operation place.

Circuit breaker operating mechanism for the spring energy storage type, can use AC and DC energy storage operations, can also be used manually.Circuit breaker can also be equipped with long life permanent magnetic actuator, mechanical life can reached 60000 times , can be used for extremely Frequent operation place.

Working Conditions

1.Ambient temperature: not higher than +40 °C, not less than -15°C

2. Altitude: not exceed 1000m.

3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.

4. Earthquake intensity: not more than ten.

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


Technical Specification:

NO Item Units parameters
1 Rated voltage KV 12
2 Rated Frequency HZ 50
3 Rated Current A 630.1250.1600.2000.3150
4 Rated short-circuit breaking current KA 20 25 31.5
5 Rated short-circuit closing current (peak) KA 50 63 80
6 Rated short-circuit duration S 4
7 Rated short-circuit breaking current breaking number nos 50s
8 Rated operating sequence 0-0.3s-CO-180s-CO
9 Rated lightning impulse withstandvoltage kv 125
10 1min power frequency withstand voltage KV 65
11 Closing time ms ≤ 70
12 opening time ms ≤ 50
13 Mechanical life Times 20000
14 Rated Storage and operation voltage V AC DC 220/110
15 Breaking life ms ≤ 80
16 Storage life s ≤ 10

Fixed Type drawings:

Draw-out Type drawings:


vs1 12 mechanism vs1 panel

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