- Rated voltage:12KV/24KV
- rated current:630A-1250A/630A-1600A
- Rated short circuit breaking current:20KA
- Rated short circuit current:50KA
- 4S rated short-circuit withstand current:20KA
- mechanical life:10000
- current breaking times:50
- closing time:0.1
- contact opening distance:11+1
- average closing speed:0.5m/s~0.8m/s
- Type:Vacuum
- Poles Number:3
- Place of Origin:CN;ZHE
- Brand Name:CNYUFENG
- Model Number:ZN73A-12/24
VS1 circuit breaker, high voltage vacuum circuit breaker details listed as belows:
1.Ambient temperature: not higher than +40 °C, not less than -40°C
2. Altitude: not exceed 2000m.
3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.
saturated vapor pressure daily average of not more than 2.2 × 103MPa, month average not more than 1.8 × 103MPa.
4. Earthquake intensity: not more than eight.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
Adopt solid insulation structure, use of advanced solid epoxy sealing technology, the first time, the vacuum interrupter. A leading electrical circuit. insulation and other support to become an integrated combination of solid seal pole. Successfully from a fundamental solution of the vacuum breaker gas environment, tolerance issues, make it more broad. Integrated solid-pole closure of the fluent use of a self-ventilation technology, cleverly solved the structure of solid insulation caused by heat dissipation. |
(Technical Drawings)
Item Description Unit Data
1 Rated voltage KV 12
2 Max. voltage KV 12
3 Rated current A 630/1250/1600
4 Rated short circuit breaking current KA 20/25/31.5
5 Rated short circuit making current KA 50/63/80
6 Rated peak withstand current KA 50/63/80
7 4S Rated withstand current KA 20/25/31.5
8 Rated insulation level Power frequency voltage(when losing a circuit) KV Dreaker 42
Impulse withstand voltage(when losing a circuit) Dreaker 75
9 Rated operating sequence OC-0.3s-CO-180S-CO
10 Mechanical life Times 10000
11 Rated short circuit current breaking time Times 50
12 Rated close brake voltage of operating machnie V 110,220
13 Rated break brake voltage of operating machnie V 110,220
14 Contact stroke mm 11±1
15 Exceed range(the compress length of contact sping) mm 3.5±0.5
16 Different period of three-phase break and close break ms ≤2
17 The jump time of contact close break ms ≤2
18 Average break speed m/s 0.9~1.2
19 Average closing speed m/s 0.5~0.8
20 Opening time Ubder max.operating voltage S ≤0.05
Under min.operating voltage ≤0.08
21 Closing time s 0.1
22 Resistance of each phase main loop μΩ 630≤50 1250≤45 1600≤40
23 Contacts limit ersion mm 3
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory with more than 20 years experience in this field.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days
if the goods are not in stock, it is according to quantity.
Q:Do your company have a website ?
A:Please check :www.cnyufeng.cn
Q: What is your terms of payment ?
A: Payment=500USD, 30% T/T in advance ,balance before shippment.
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