Automatic Transfer Switch (ATS) is used which operation voltage is no more than 660VAC, and may transfer with load. The ATS rated current series is40A, 63A, 80A,125A, 160A, 250A, 400A, 630A, 800A,1000A,1250A,1600A,2000A,be divided up two types with 3 poles and 4 poles.

MODELS	Amperes	Phase	Pole
SGQ-125N 4P	125	3	4
SGQ-250T 4P	250	3	4
SGQ-400T 4P	400	3	4
SGQ-630M 4P	630	3	4
SGQ-800M 4P	800	3	4
SGQ-1000M 4P	1000	3	4
SGQ-1250M 4P	1250	3	4