SIRIUS S3 contactor, 175-280 V AC/DC coil
Its coil accepts 175-280 V AC/DC, drawing 3.5 VA at both 50 Hz and 60 Hz, with an inrush current peak of 65 A. The screw-type coil terminals accept solid conductors from 2x (0.5-1.5 mm²) to 2x (0.75-2.5 mm²), while the main power circuit handles stranded cable up to 70 mm².
Overall dimensions are 70 mm wide, 140 mm high, 152 mm deep — the 152 mm depth is the dimension to check when planning gland-plate clearance or enclosure depth.
Operating conditions and auxiliary switch
The contactor includes an auxiliary switch and carries a typical mechanical endurance of 10,000,000 operations. Arcing time is 10-20 ms; opening and closing times at both AC and DC are 38-57 ms.
