Siemens 3RT2016-1BB42-1AA0 Three-Phase Contactor

Siemens SIRIUS 3RT2016-1BB42-1AA0 is a 3-pole power contactor designed for AC-3e/AC-3 motor switching. It features a 24 V DC coil and three main contacts rated for a 9 A load, suitable for motors up to 4 kW at 400 V. The unit includes one auxiliary contact (1 NC) for control feedback, uses screw terminals for wiring, and is size: S00 with upright mounting. Weighing 0.295 kg, this Siemens contactor is part of the SIRIUS 3RT family and is intended for light- to medium-duty motor control in industrial automation, such as conveyors, fans, or pumps, where reliable switching of all three phases is required. The 24 V DC coil allows direct interfacing with typical PLC or control relay circuits, simplifying wiring in control cabinets. This model, 3RT2016-1BB42-1AA0, provides a fixed 3-pole main circuit and 1 NC auxiliary contact, aligning with Siemens' standard footprint for replacement and compatibility in OEM panels.