SIRIUS 3RT5046-1AK20 Power Contactor — AC-3 45 kW at 400 V
The Siemens SIRIUS 3RT5046-1AK20 is a size S3 power contactor rated for AC-3 duty at 45 kW on a 400 V three-phase system, with a 120 V 50/60 Hz coil and screw-type terminals on both main and control circuits.
Substance prohibitance compliance is documented with a date of 03/01/2017, confirming the part meets RoHS and REACH substance restrictions effective from that date.
Size S3 form factor with screw terminals accepts 2x (2.5... 16 mm²) solid or stranded conductors on the main circuit, and 2x (0.5... 1.5 mm²) or 2x (0.75... 2.5 mm²) finely stranded with core-end processing on the auxiliary side. Fastens via screw and snap-on mounting onto 35 mm and 75 mm standard DIN rails; mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward, giving flexibility in dense panel layouts.