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Do Better Performances in Demanding Duties
Yueqing Aiso gain client trust thanks to their proven reputation for reliability, performance and long life. 12kV 630A Fixed Type High Voltage Indoor Vacuum Circuit Breaker from Yueqing Aiso are available for original equipment manufacturers (OEM) to incorporate in their own installations or for use in repair, retrofit and upgrade projects.
Why Yueqing AIso?
1,Full engineering and technical support: 3 professional manufacturers, and technical service team.
2,Quality is No1 ,our culture.
3,Quickly lead times:”Time is gold” for you and for us
4,30min fast response:we have professional team,7*20H
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.
33kV Vacuum Circuit Breaker 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 |
