Siemens 3RT2027-1AC20 is a 3-pole power contactor from the SIRIUS 3RT2 family, rated for AC-3e/AC-3 duty up to 32 A and 15 kW at 400 V. The control coil is 24 V AC (50/60 Hz), with screw-terminal wiring in the compact S0 frame. It includes a single auxiliary contact block: 1 normally open and 1 normally closed contact for signaling or interlocking in control circuits. Main contacts are three normally open (3NO), and the coil power is 2.7 W, making this unit a reliable choice for panel-mounted motor control in industrial applications.
