ZN12-12 12kV 40.5kV indoor AC HV vacuum circuit breaker
ZN12-12 series indoor AC HV vacuum circuit breaker is the indoor equipment of three phases AC 50Hz, rated voltage of 12kV, which introduced the technology from German company. It is suitable for area with all kinds of load and frequent operation, and can used for protection and control of industrial and mining, enterprise, power plant and substation electrical facilities.
This product is in accordance with related requirement of GB1984, JB3855, DL403 and IEC standards.
1. Altitudel: 1000m;
2. Ambient temperature: -25 ~+40 ;
3. Relative humidity: daily average 95 , monthly average 90 ;
4. Earthquake intensity: 8 degree;
5. Applicable occasions should free from inflammables, explosives, corrosives and severe vibration.
1. The breaking capacity of the arc extinguish chamber is high, the current carrying capacity is low, and the electrical life is long.
2. layout is from front to back, simple and compact structure, complete operation and easy maintenance.
3. In order to structure and installation, they can be divided into: Horizontal fixed type, inclined fixed type, middle set movable type.
|2||Rated insulation level||1 min power
|5||Rated short circuit breaking current||kA||20/25||31.5||40||50|
|6||4s short time withstand current||20/25||31.5||40/3s||50/3s|
|7||Rated short circuit making current (peak)||50/63||80||100||125|
|8||Rated peak withstand current (peak)||50/63||80||100||125|
|9||Breaking times of rated short circuit breaking current||times||50||30|
|13||Phase center distance||mm||210、230、250、275|
We will contact you within 1 working day, please pay attention to the email with the suffix “@wolunele.com”.