Siemens 3RT2016-1FB41 Three-Phase Power Contactor

Siemens 3RT2016-1FB41 is a three-pole SIRIUS power contactor designed for AC-3e/AC-3 motor switching. With a 24 V DC coil and an integrated diode, this size S00 device provides 9 A of load current and up to 4 kW at 400 V, making it suitable for controlling small to mid-size three-phase motors in automation panels. The main circuit uses screw terminals for robust, vibration-resistant connections, and the device includes one normally open auxiliary contact for simple status feedback or interlocking with other control components. As a 3-pole contactor, it can be used to switch all three supply phases in a single device, simplifying wiring and control logic. The 3RT2016-1FB41 is part of Siemens' SIRIUS 3RT2 family, which is compact and designed for panel mounting in control gear; the S00 size denotes its small footprint suitable for tight spaces. Typical applications include conveyors, fans, pumps, machine tools, and other equipment requiring motor control at up to 4 kW (400 V) with a DC control coil.