Siemens 3RT2016-1AK62 Industrial Three Phase Contactor

Siemens 3RT2016-1AK62 is a compact, three-pole industrial contactor designed for reliable start-stop switching of three-phase motors in control panels and automation enclosures. It provides an AC-3 rated current of 9 A and is suitable for motors up to roughly 4 kW at 400 V, with a 120 V AC coil for standard control circuits (50/60 Hz). The unit includes one normally closed auxiliary contact (NC) to furnish feedback or interlock signaling without needing an additional relay, while the three main contacts handle the primary load. Coil energization from 120 VAC drives the main contacts rated up to 400 V AC, aligning with common motor-control practice across European and North American systems. This Siemens 3RT2-series device is a space-efficient solution for motor control in conveyors, pumps, fans, and general machine automation, delivering dependable switching performance in rugged industrial environments and integrating smoothly with existing control circuits and safety interlocks that rely on NC auxiliary signaling.