Siemens 3RT2027-1AR60 SIRIUS Three-Phase Contactor

Siemens SIRIUS 3RT2027-1AR60 is a three-pole power contactor designed for AC-3e/AC-3 motor-control duty. It switches three-phase loads up to 32 A and up to 15 kW at 400 V, making it a compact, robust choice for starting motors, pumps, or fans in industrial panels. The coil is rated for 400 V AC at 50 Hz and supports 400–440 V for 60 Hz systems, enabling compatibility with European 50/60 Hz networks. This model includes one normally open and one normally closed auxiliary contact (1 NO + 1 NC) for control signaling and interlocking. Terminals are screw-type for straightforward wiring, and the unit is categorized as size S0 within the SIRIUS 3RT family. The 3RT2027-1AR60 is a reliable, field-serviceable starter that aligns with AC-3e/AC-3 duty ratings and common industrial voltages, with a compact footprint that fits tight control panels. Typical applications include motor starters for conveyors, pumps, fans, and other three-phase loads in automation and process equipment, where a single coil energizes the main contacts and the auxiliary contact provides feedback for control circuits.