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11kv 630a vacuum circuit breaker / 11kv siemens vacuum circuit breaker / 3af vacuum circuit breaker
VS1-12(ZN63A-12) indoor AC High voltage vacuum circuit breaker is used in three phase
AC50Hz electric system with rated voltage 7.2KV-12KV to switch on and off of loads of
different kinds at occasions of frequent operations.
It serves as a protection and control unit of network equipment, industrial and mining enterprises power equipment. It can be installed into KYN28A-12 draw-out type switchgear as well as XGN fixed type switchgear.
1.The environment temperature: upper limit+40℃, lower limit -15℃ (allow storage
at -30℃);
2.Altitude: no more than 2000m;
3.Relative humidity: daily average value is not greater than 95%, monthly average is
not greater than 90%;
4. Saturated steam pressure: daily no larger than 2.2×10-3Mpa, monthly average is
not greater than 1.8×10-3Mpa;
5. Earthquake intensity does not exceed 8 degrees;
6. No fire, explosion, pollution, chemical corrosion and severe vibration place.
NO. |
Item |
Unit |
Specification |
||||
1 |
Rated Voltage |
kV |
12 |
12 |
12 |
12 |
|
2 |
Rated Current |
A |
630, 1250 |
630, 1250, 1600 |
1250, 1600 |
2000, 2500, 3150 |
|
3 |
Rated Insulation Level |
1min power frequency withstand voltage |
kV |
42 |
42 |
42 |
42 |
Rated lighting impulse withstand voltage |
75 |
75 |
75 |
75 |
|||
4 |
Rated Short-circuit Breaking Current |
kA |
20 |
25 |
31.5 |
40 |
|
5 |
Rated Short-circuit Making Current(peak value) |
50 |
63 |
80 |
100 |
||
6 |
Rated(peak value)Withstand Current |
50 |
63 |
80 |
100 |
||
7 |
Rated Short-circuit Withstand Current |
20 |
25 |
31.5 |
40 |
||
8 |
Rated Short-circuit Breaking Current Breaking Times |
Times |
50 |
50 |
50 |
30 |
|
9 |
Rated Short-circuit Lasting Time |
S |
4 |
4 |
4 |
4 |
|
10 |
Rated Operation Sequence |
|
0-0.3s-CO-180s-CO |
||||
11 |
Mechanical Life |
Times |
20000 |
20000 |
20000 |
20000 |
|
Adjust the parameters of mechanical properties:
No |
Item |
Unit |
Parameters |
1 |
Contact distance |
mm |
14±1 |
2 |
Contact Over-travel |
mm |
3.5±1 |
3 |
Closing speed |
m/s |
1.0±0.2 |
4 |
Opening speed |
m/s |
1.3±0.2 |
5 |
Contact closing spring time |
ms |
≤2 |
6 |
Rated contact pressure |
N |
20KA(2400±200) 25KA (2400±200) 31.5KA(3100±200) |
7 |
Three phase closing opening asynchrony |
ms |
≤2 |
1.Over 20 years of manufacturing experience with good quality & stable product performance.
2. Hossin provides full line of MV-HV electrical products, including drop-out fuse, disconnector, surge arrester, vacuum circuit breaker, fuse, load switch, insulator etc.
3. Quick feedback, Timely quotation, Fast delivery
4. Complete set of testing machine to ensure product quality.
5. Hossin can customize non-standard product as per client’s requirement.
6. Hossin sells pressing parts& pressing mould at low price.
7. Hossin offers electrical installation & commission service.
To order the vacuum circuit breaker, please let us know below info:
1. Rated Voltage
2. Rated Current
3. Rated Breaking Current
4. Fixted type or Draw-out Type
Send Inquiry to This Supplier
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