SIRIUS S00 power contactor — 3RT1017-1AU61
For standard AC-3 motor starting, the contactor is rated at 5.5 kW at 400 V (AC-2 duty), covering typical three-phase induction motors up to that power. The resistive load rating (AC-12) is 10 A maximum, so it handles heater banks or lighting circuits within that limit. DC switching capability is specified at several voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for DC motor brakes or solenoid loads in mixed-voltage panels.
The S00 footprint is compact at 45 mm wide, 57.5 mm high, and 72 mm deep — fits standard 45 mm-wide DIN-rail slots. Wire range for main terminals accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) — solid or stranded. AWG equivalents are 2x (20 to 16), 2x (18 to 14), or 1x 12. The enclosure is rated IP20 on the front and at the terminals, so it is intended for installation inside a panel with a higher-rated enclosure.
Environmental and protection coordination
Type 1 coordination (contactor may need replacement after fault) allows a 35 A gL/gG fuse. This lets the panel designer choose between tighter protection or higher fault tolerance.