Siemens 3RT1015-2BW41 SIRIUS Power Contactor — S00 Frame, 24 VDC Coil, Spring-Loaded Terminals
Rated operational currents span 10 A at 24 V up to 0.3 A at 220 V in the DC switching curve, and motor power ratings reach 3 kW at 400 V AC-2 duty or 4 kW at 690 V. The 24 VDC coil draws 3.3 W holding power, with a pickup threshold of 0.85 x rated voltage and a dropout below the 1.1 x full-scale ceiling — a standard DC solenoid curve that panel builders can budget without surprises.
AC-4 at 400 V is rated 6.5 A — that covers plugging or inching duty on squirrel-cage motors, where the contactor sees the locked-rotor current each cycle. For resistive loads (AC-12), the maximum operating current is 10 A. Type 1 coordination allows up to 35 A. Pollution degree 3 (conductive pollution) means the contactor is suited for industrial environments where temporary condensation or light dust is expected — no additional conformal coating needed for standard panel conditions. The IP20 rating on the front and terminals means the contactor is touch-safe for panel interiors but not washdown-rated; keep it behind an enclosure door in wet areas.
Panel Fit and Wiring — S00 Footprint, Spring-Cage Terminals
The spring-loaded terminal accepts 2x (0.25 to 2.5 mm²) or 2x (24 to 14 AWG). Side-by-side mounting is permitted, which simplifies multi-contactor assemblies for star-delta or reversing starters.