1) Dual Power Automatic Transfer Switch 6-63A 2) Lowest price 3) Certificate:CE,ISO9001 Packaging & Delivery Packaging ... below 415V (660V), rated frequency 50Hz/60Hz, rated working current 63A and below, which is used in hospital, shop, bank, high ... 90% (NQ6 series) Dual Power Automatic Transfer Switch SWATS 6-63A Sw013