ST brand fixed type hv vacuum circuit breaker
1. Model: ZN63-12 Series
2. Standards: IEC60056
3. Voltage: 12KV
4. Frequency: 50Hz OR 60Hz
5. Mechanical endurance up to 20, 000 times
VS1-12 type indoor high voltage vacuum circuit breaker is the indoor switch device for three-phase AC 50Hz, rated voltage 12kA power system, can be used for electrical equipment control and protection in power plant, substation and industrial and mining enterprises, and is suitable for frequent operation place, can be installed in the KYN28-12 type and other armored cabinet, can also be installed on the fixed cabinet or gas insulated cabinet.
VS1-12kV indoor medium voltage sealed vacuum circuit breaker
(12kV, .4000A, .50kA)
VS1 indoor medium voltage sealed vacuum circuit breaker with maintenance free sealed vacuum pole, can equipped with modular spring assembling actuator and permanent magnetic actuator; has the features of reliable performance, long mechanical life, maintenance free, small mechanical movement, has the advantages of simple structure, good process performance, but also can be applied to all kinds of bad working environment.
VS1 circuit breaker pole adapts the solid insulation sealing technology, seal the vacuum interrupter and primary main galvanic circle and other parts into strong insulation, high mechanical strength pole with epoxy resin, avoid the influence of adverse operating environment on the primary circuit external insulation, realizes completely maintenance free.
VS1 circuit breaker adapt ultra low resistance type vacuum interrupter, meet the VCP circuit breaker requirements on the temperature rise at big current operation situation and reduces the power losses.
VS1 circuit breaker adapt optimization and modular spring operating mechanism, simple structure, stable performance, convenient maintenance; modular production process is good, easy standardization production, short delivery cycle.
|2||Rated insulation level||Rated lightning Impulse voltage tolerance||kV||75|
|1min frequency voltage||42|
|3||Rated short-circuit breaking current||kA||20/25||31.5||40|
|5||Rated thermal stability of current (RMS)||kA||20/25||31.5||40|
|6||Dynamic Stability rated current (peak)||63||80||100|
|7||Rated short-circuit closing current (peak)||63||80||100|
|8||Rated short-circuit breaking current breaking number||times||50|
|9||Frequency tolerance of the secondary circuit voltage (1min)||V||20,000|
|10||Rated operating sequence|| ||0-0.3s-CO-180s-CO|
|11||Rated thermal stabilization time||s||4|
|12||Rated a single / back-to-back electric current breaking device group|| ||630/400 800/400(40KA)|
1.OEM is available.
2.Your inquiry related to our product & price will be replied within 24 hours
3.Well-trained & experienced staff are to answer all your inquiries in English
4.Working time: 8:00am ~17:45pm, Monday to Saturday. (UTC+8)
5.Customized solution & perfect after-sale service
6. Payment: we can accept T/T, L/C, Western Union.
7. For large order, engineer can be sent to your country for on-site mainternace instructions.