> NOTE:1.Our products are accord with IEC 60947-3 standard2.Lifetime:Beyond 12 Months3.Application:HK series change over switch is mainly applied to industrical and mining enterprises to change over circuit and switch phases. When the switch is in operation, the door is locked and can not be opened until the power is cut off, then the door can be opened for check and repair. 4.Technical Parameter:rated voltagerated impulse withstand voltageclassification415V2.5KVAC-21B
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