Siemens Sirius 3RT2035-1AK60 is a three-pole power contactor designed for AC-3 duty in 3‑phase motor control, with a 110/120 V AC coil (50/60 Hz). It handles up to 40 A on the main circuit and switches up to 18.5 kW at 400 V, with three main contacts and an integrated auxiliary contact block (1 NO, 1 NC) for signaling and interlocking. The unit is intended for DIN-rail mounting with IP20 protection, making it suitable for panel-mounted motor-start applications in compact control cabinets. It is part of Siemens’ SIRIUS 3RT family, offering a compact form factor for standard industrial motor-start needs.
