Siemens 3RT2017-1AK61 Three Phase AC Contactor

Siemens 3RT2017-1AK61 is a three-pole SIRIUS power contactor designed for AC-3 duty, rated to switch 12 A and up to 5.5 kW at 400 V. The coil accepts 110 V AC at 50 Hz or 120 V AC at 60 Hz, aligning with common control voltages across global installations. This compact, size S00 device features screw-terminal connections for reliable wiring and includes one normally open auxiliary contact for signaling or interlock purposes. With three main contacts and a single NO auxiliary, it is intended to control three-phase loads in motor circuits such as conveyors, pumps, and fans, while maintaining a compact footprint suitable for panel mounting. When selecting this model, ensure the coil voltage matches your control supply and that the main-contactor current rating (12 A) and the associated load (up to 5.5 kW at 400 V) satisfy your motor start-up and run requirements. The 3RT2017-1AK61 is part of Siemens' Sirius 3RT family, widely used in automation applications for reliable motor control and process switching in industrial environments.