Intelligent auto transfer switch (ATS), has rated current ranging from 10 amp to 100 amp (optional 10A, 16A, 20A, 32A, 40A, 50A, 63A, 80A, 100A), 3-pole or 4-pole, rated working voltage 400VAC 50Hz and adjustable 0-30s delay time. This intelligent ATS transfer switch features compact size and light weight, easy mounting & wiring, simple operation with microcomputer controller, best