SGQ 400A

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SGQ Automatic Transfer Switch (ATS) is used in conditions from AC660V 50/60HZ to DC250V

which under electromagnetism drive structure and two-stage PC class type. SGQ ATS can

make fast load transfer (transfer time ≤80ms) of two ways power supply. Also ATS can be widely

used in high buildings, post, telecommunications, coal mines, ships, industry, health care,

military facilities and so on. 2-way power supply can be grid, auto start genset, storage battery

and etc..


SGQ Automatic Transfer Switch (ATS) adopts structure of magnet coil driving and interlocking

of electric and mechanical. The structure of major loop contact terminal consists of one dynamic

and two static contacts. And the dynamic contact is in “V” type design, in order to ensure there is

no short circuit of the 2-way power supply. “N” and “T” type use structure of double coils while

“M” type use single coil operation. The coil only energized while it is transferred which can

extremely extend the using life of switch. The control power of coil is supplied from priority

AC/DC power, so there is no use to add another control power. The switch has electrical and

mechanical close indication by itself and also offers 2 way NO/NC voltage free auxiliary

contacts at the same time.