Indoor Vacuum Circuit Breaker

VS1-12 Indoor Vacuum Circuit Breaker

VS1-12 Indoor Vacuum Circuit Breaker

  • VS1-12 Indoor Vacuum Circuit Breaker

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VS1-12 Type side-mounted vacuum circuit breaker is an indoor high-voltage switching device and is used for protection and control of electric appliance,applied for three-phase power system with rated voltage of 12KV and frequency of 50HZ,as the special advantage of vacuum circuit breaker,it is especially suitable for place in need of frequent operation under rated current or multiple breaking short-circuit current.
VS1-12 type side-mounted vacuum circuit breaker adopts fixed installation,mainly used for fixed switch cabinet,this circuit breaker can not only be used independently,but also it can be applied for ringpsystem power supply.cabinet substation or various non-standard poser supply system.

NO Item Units parameters
1 Rated voltage KV 12
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
4 Rated current A 630  1250 630 1250 1600 2000  2500 3150 1250 1600 2000 2500   3150 4000
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 2000    
10 Rated operating sequence   0-0.3s-CO-180s-CO
11 Rated thermal stabilization time S      
12 Rated a single / back-to-back electric current breaking device group   630/400  800/400(40KA)
13 Mechanical life times 10000

VS1-12 Indoor Vacuum Circuit Breaker


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