Siemens 3RT1316-1AK60 Heavy Duty AC Contactor

Siemens Sirius 3RT1316-1AK60 is a four‑pole heavy‑duty AC contactor (Size S00) with four normally open main contacts and screw‑terminal connections, rated for AC‑1 duty up to 18 A at 400 V (12 kW). The coil is an AC coil designed for 110 V at 50 Hz or 120 V at 60 Hz operation, accommodating common control voltages across global installations. In addition to the AC‑1 rating, it provides an AC‑3 current rating of about 9 A at 400 V, suitable for motor starting duties, and it is specified for an ambient operating range from −25 to +60 °C. The unit offers a long mechanical life—up to 30,000,000 operating cycles—with auxiliary options affecting cycle counts (10,000,000 cycles with a single auxiliary switch and 5,000,000 cycles with electronics‑compatible auxiliary switch)—and is part of the Sirius 3RT family, with documented successors in the 3RT2 line, such as the 3RT2316‑1AK60.