Wenzhou Shuyi Import and Export Co., Ltd. is a professional China Timetric Vacuum Circuit Breaker Vcb manufacturer and supplier, if you are looking for the best Vacuum Circuit Breaker Vcb with low price, consult us now! Our products have a good price advantage and cover most of the South America, Middle East, Africa, Southeast Asia markets.
Wenzhou Shuyi Import and Export Co., Ltd. is a professional China Timetric Vacuum Circuit Breaker Vcb manufacturer and supplier, The Vacuum Circuit Breaker Vcb the integrated and modular design, the overall structure is simple and reasonable, the use of up and down arrangement, the arc extinguishing chamber part above, interlock and operating mechanism below. Use special 3AV3 spring operating mechanism, no adjustment, stable and reliable action. The vacuum arc extinguishing chamber is arranged in the closed insulation cylinder, which improves the insulation performance and reduces the overall size.
Item |
Description |
Unit |
Data |
|
1 |
Rated voltage |
KV |
12 |
|
2 |
Max. voltage |
KV |
12 |
|
3 |
Rated current |
A |
630/1250/2500/3150/4000/5000 |
|
4 |
Rated short circuit breaking current |
KA |
20/25/31.5/40 |
|
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 |
|
Power frequency voltage(when losing a circuit) |
KV |
Dreaker 48 |
Impulse withstand voltage(when losing a circuit) |
Dreaker 85 |
|||
9 |
Rated operating sequence |
|
OC-0.3s-CO-180S-CO |
|
10 |
Mechanical life |
Times |
20000 |
|
11 |
Rated short circuit current breaking time |
Times |
274 |
|
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 |
13±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 |
1.1~1.7 |
|
19 |
Average closing speed |
m/s |
0.6~1.1 |
|
20 |
|
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/ 1600-2500≤40 |
|
23 |
Contacts limit ersion |
mm |
3 |
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