Here in after call transfer switch is adopt the newest technical, which is suitable for using in double power supply system with rated voltage below 400V , rated AC 50Hz/60Hz,rated working current 6-800A and below,When one circuit of power supply occurs fault, it can transfer between normal power and reserve power automatically not need manual operation, to protect the reliability of power supply for important fields. Can also be carried out in accordance with the needs of the load to choose the power. it is used in hospital, shop, bank, high building, coal mine, telecommunication, iron mine,superhighway, airport,etc. important situation where disallow power supply failure.

Technical parameters:

The suitable rated working voltage AC400V system; the switch device operating life(N-R-N) is50 times. Control voltage is QC230V; less switch time is <1-3S