Siemens 3RT2047-1AK60 is a three-pole power contactor rated for AC-3e/AC-3 duty, suitable for motor-control circuits up to 55 kW at 400 V and a rated load current of 110 A. The device uses a 110 V AC coil (50 Hz / 60 Hz variants) to energize the main contacts and includes one normally open and one normally closed auxiliary contact, with screw terminals for field wiring. In the Siemens 3RT family, this unit is sized S3 with upright mounting, designed for robust industrial panel installations where reliable three-phase switching and auxiliary signaling are required.
