喀什ZN63A-12 Indoor High Voltage Vacuum Circuit Breaker
Product Description
Overview
The ZN63A-12 type permanent magnet indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz indoor switching device with a rated voltage of 12kV for power systems. It serves as a protection and control unit for power grid equipment and industrial and mining enterprise power equipment. It is suitable for occasions requiring frequent operation under rated operating current or multiple breaking of short-circuit current.
This circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body. It can be used as a fixed installation unit or equipped with a special pushing mechanism to form a handcart unit.
Main Technical Parameters
| Serial Number |
Name |
Unit |
Data |
||||
| 1 |
Rated Voltage |
kV |
12 |
||||
| 2 |
Rated Frequency |
Hz |
50 |
||||
|
3 |
Rated Insulation Level |
1min Power Frequency Withstand Voltage |
kA |
Ground/Phase 42/48 |
|||
| Lightning Impulse Withstand Voltage (Peak) |
Ground/Phase 75/85 |
||||||
| 4 |
Rated Short-Circuit Breaking Current |
kA |
20 |
25 |
31.5 |
40 |
|
|
5 |
Rated Current |
A |
630 |
630 |
12501600 |
12501600 |
|
| 1250 |
1250 |
20002500 |
20002500 |
||||
| 6 |
Rated Short-Time Withstand Current (RMS) |
kA |
20 |
125 |
31.5 |
40 |
|
| 7 |
Rated Peak Withstand Current (Peak) |
kA |
50 |
63 |
80 |
100 |
|
| 8 |
Rated Short-Circuit Closing Current (Peak) |
50 |
63 |
80 |
100 |
||
| 9 |
Rated Short-Circuit Current Duration |
S |
4 |
||||
| 10 |
Mechanical Life |
Times |
10000 |
||||
| 11 |
Secondary Circuit Power Frequency Withstand Voltage (1min) |
V |
2000 |
||||
| 12 |
Rated Operating Sequence |
Open-t-Close-Open-t1-Close-Open |
|||||
Note: 20kA、31.5kAt=0.3st1=180s;40kAt=180s;tl=180s
Overall Installation Dimensions
Contact Number：+8613623894894
Contact Number：+8615136360288
Email：13623894894@126.com
Address: No. 1, High-tech Road, Hebin Street Office, Yichuan County, Luoyang City, Intelligent Equipment Industrial Park
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