1250A Indoor Vacuum Circuit Breaker-33kV
| Brand | ROCKWILL |
| Model NO. | 1250A Indoor Vacuum Circuit Breaker-33kV |
| Rated voltage | 33kV |
| Rated frequency | 50/60Hz |
| Series | ZN85 |
Product Description
ZN85 33kV 1250A Indoor Vacuum Circuit Breaker:
ZN85 indoor high-voltage alternating-current vacuum circuit breaker has a frequency of 50Hz and a rated voltage of 40.5kV. It applies to the electrical equipment control and protection in industrial and mining enterprises, power plants and substations, particularly to the places needing frequent operation. It can be fixed in a switch cabinet or installed on a handcart.
With stable performance and convenient installation, it is the best choice for the control and protection of high-voltage power transmission and distribution systems.
Environmental Conditions
Ambient temperature: – 40℃~+40℃ (below 35°C within 24 hours)
Relative humidity: ≤95% (daily average) or ≤90% (monthly average)
Altitude: ≤ 1000m
Structure and Function
Main Technical Parameters
| Description | Unit | Data |
| Rated voltage | kV | 33 |
| Max. voltage | kV | 40.5 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | 630/1250 |
| Rated short-circuit breaking current | kA | 20/25/31.5 |
| Mechanical life | Times | 10000 |
Note:Please contact the factory to confirm the latest parameters
Outline and installation dimension
Product detail pictures:
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