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Help CenterZW32-12 Series Outdoor Three-phase AC Pole Mounted Vacuum Circuit Breaker
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ZW32-12 series outdoor pole-mounted vacuum circuit breaker is a kind of outdoor three-phase AC power distribution equipment at 12kV and 50Hz, mainly used for closing the load current and opening overcurrent and short circuit current in the power system. It can be used as a section switch in the distribution line, branch line and ring main and as a incoming switch in rural grid, industrial and mining enterprises, residential areas, construction sites, etc.
Service Conditions:
Altitude: ≤1000m; if applied in special conditions, it is designed to 2000m to 4000m to meet the requirements of different altitudes.
Ambient temperature: -40℃~+40℃;
Wind speed≤35m/s;
It is placed in the places without violent vibration
Technical Data
No. |
Description |
Unit |
Data |
|
1 |
Rated voltage |
kV |
12 |
|
2 |
Rated frequency |
Hz |
50 |
|
3 |
Rated current |
A |
630 |
1250 |
4 |
Rated short circuit breaking current |
kA |
20 |
25 |
5 |
Rated peak withstand current |
kA |
50 |
63 |
6 |
Rated short time withstand current (4s) |
kA |
20 |
25 |
7 |
Rated short circuit making current (peak) |
kA |
50 |
63 |
8 |
Mechanical endurance |
times |
10000 |
|
9 |
Rated short circuit breaking current capacity |
times |
30 |
|
10 |
Power frequency withstand voltage (1min) Phase to phase/earth, between open contacts |
kV |
42 |
|
11 |
Lightning impulse withstand voltage (peak) |
kV |
75 |
|
12 |
Power frequency withstand voltage on secondary circuit (1 min) |
V |
2000 |
|
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