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    EVC8 12KV 250A 400A and 630A Vacuum ContactorEVC8 12KV 250A 400A and 630A Vacuum ContactorEVC8 12KV 250A 400A and 630A Vacuum ContactorEVC8 12KV 250A 400A and 630A Vacuum Contactor
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EVC8 12KV 250A 400A and 630A Vacuum Contactor

MODEL EVC8-250A/12KV EVC8-400A/12KV EVC8-630A/12KV
Main circuit rated voltage         (kV) 12 12 12
Main circuit rated current        (A) 250 400 630
Main circuit current making ability    (A/100Otimes) 2500 4000 6300
Main circuit break-make ability     (A/25Otimes) 2000 3200 5000
Maximum break ability        (A/3Otimes) 3200 4000 6300
Mechanical life          (times) 1,000,000 1,000,000 1,000,000
Engineering lock life         (times) 100,000 100,000 100,000
Power-frequency withstand voltage for main circuit  (kV) 42 42 42
Power-frequency withstand voltage for auxiliary circuit (kV) 2.5 2.5 2.5
Power-frequency withstand voltage for control circuit (kV) 2 2 2
Rated operate frequency       (times/h) 300 300 300
Engineering lock operate frequency     (times/h) 30 30 30
Clearance between open contacts      (mm) 5±0.5 5±0.5 5±0.5
Over travel            (mm) ≥1.2 ≥1.2 ≥1.2
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