VS1-12 Series Indoor Vacuum Circuit Breaker

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General Description
VS1-12 series indoor vacuum circuit breaker is a high voltage switching device with the rated voltage of 12KV. This product is designed and developed by introducing technology from Switzerland ABB company and integrating national research and development capability. The switching body and the operating mechanism are integrated together. Composite insulation structure is adopted. There is no pollution and no risk of explosion. The spring energy storage type operating mechanism can be operated by an AC motor or by hand.

Main Technical Parameters

No.	Name		Unit	Data
1	Rated voltage		KV	12
2	Highest working voltage		KV	12
3	Rated current		A	630, 1000, 1250, 1600, 2000, 2500, 3150
4	Rated short circuit breaking current		KA	20, 25, 31.5, 40, 50
5	Rated short circuit making current		KA	50, 63, 80, 100, 125
6	Rated peak withstand current		KA	50, 63, 80, 100, 125
7	4S Rated short time withstand current		KA	20, 31.5, 40, 50
8	Rated insulation level	Power frequency withstand voltage (before and after test of rated short circuit breaking current)	KV	42
8	Rated insulation level	Lightning impulse withstand voltage (before and after test of rated short circuit breaking current)	KV	75
9	Rated operating sequence			O - 0.3s - CO - 180s - CO
10	Mechanical life		Time	20000
11	Numbers of breaking rated short circuit breaking current		Times	50

Related Names
Electrical Circuit Protection Device | Vacuum Switch | Air Circuit Breaker

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