... : CE,CCC,ISO Automatic transfer switches(ATS)YEQ1-63L series dual power automatic transfer switches (follow brief as setting) is one ... voltage is 400V, rated current 6A-100A and under dual power supply system. It has over voltage, under voltage, lost ... current is 150Ma.And 1 is common power signal lamp power, 2 is ready power signal lamp power. Q1 Series Automatic Transfer Switches ( Economic ATS )