SIRIUS S6 power contactor, 160 A across the coil range
The Siemens SIRIUS 3RT1055-6AP30 is a size S6 power contactor rated 160 A at coil voltages from 24 V through 220 V — the same current rating holds across the full 24–220 V range, so you don't lose capacity at lower control voltages. Switching rates are duty-dependent: 800 operations/hour in AC-1 resistive loads, 750/h in AC-3 motor starting, and 130/h in AC-4 plugging/reversing. The 10–15 ms arcing time and 40–60 ms operate time (both AC and DC) are typical for this class — expect consistent pick-up and drop-out timing across the control range.
Mounts via screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° front-to-back — gives flexibility in tight enclosures. Dimensions are 172 mm high, 120 mm wide, 170 mm deep. The single 9 mm mounting hole is standard for this frame size.