BD-12/1250-20(25)Circuit-breaker used glass vacuum interrupter

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1) Rated voltage :12KV 2) Rated current :1250A 3) Rated frequency : 50HZ 4) Rated short-circuit breaking current: 20,25kA 5) Rated short-circuit making current :50,63kA 6) Rated peak withstand current: 50,63kA 7) Mechanical life: 10000 times 8) Contact automatic blocking ability: 120±50N 10) Force required to hold contacts open at full stroke: 200±50N 11) The resistance under contact automatic blocking ability loop: ≤30µΩ 12) Contact-wear allowance thickness: 3mm 13) Storage period: 20 years Technical specifications of the contactor: 1) Clearance between open contacts: 11±1mm 2) Contact travel: 3.5±0.5mm 3) Average closing speed: 0.6±0.2m/s 4) Average opening speed: 0.6±0.2m/s 5) Rated contact pressure: 100±20N 6) Contact closing bounce time: ≤2ms 7) Contact opening/closing non-synchrony: ≤2ms

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Baoguang Group Co,.Ltd

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