Indoor High Voltage Vacuum Circuit Breaker / Hv Circuit Breaker VS1-12 Series

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VS1-12 Indoor AC Vacuum Circuit Breaker NINGBO TIANAN (GROUP) CO., LTD. General VS1-12 (ZN63A) type indoor High voltage vacuum circuit breaker is used as protection and control unit of three-phase AC indoor High voltage switchgear and industrial and mining enterprise power device of 50Hz and rated voltage up to 7.2~24kV. This products comply with IEC60694, IEC62271-100. Specifications - - - - No. | Description | Unit | Data | 1 | Rated voltage | kV | 12 | 2 | Rated insulation levels | Rated power frequency withstand voltage/1min ( phase to phase, phase to earth, open contacts) | kV | 42 | Rated lighting impulse withstand voltage (phase to phase, phase to earth, open contacts) | 75 | 3 | Rated frequency | Hz | 50 | 4 | Rated current | A | 630 | 630 | 1250 | 1600 | 1250 | 1250 | 1600 | 2000 | | | 2000 | 2500 | | | 2500 | 3150 | | | | 4000 | 5 | Rated short circuit breaking current | kA | 20 | 25 | 31.5 | 40 | 6 | Rated short time withstand current(4s) | kA | 20 | 25 | 31.5 | 40 | 7 | Rated short circuit making current | kA | 50 | 63 | 80 | 100 | 8 | Rated peak value of withstand current | kA | 50 | 63 | 80 | 100 | 9 | Rated operating sequence | | O-0.3s-CO-180s-CO O-180s-CO-180s-CO | 10 | Rated short circuit breaking current breaking times | times | 30/20(40kA) | 11 | Rated cable charge breaking current | A | 25 | 12 | Rated single capacitor bank breaking current | A | 630/400(40kA) | 13 | Rated back to back capacitor bank breaking current | | 400 | 14 | Mechanical life | times | 10000 | 16 | Allowed abrade cumulative thickness of moving and static contactor | mm | 3 | 17 | Clearance between open contacts | mm | 111 | 18 | Contact stroke | mm | 3.50.5 | 19 | Bounce duration of contact closing | ms | 2 | 20 | Non-simultaneity of three phase for opening and closing | ms | 2 | - - - -

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Ningbo Tianan Co.,Ltd.

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