Siemens 3RT2016-2BB42 Three Phase AC Contactor

Siemens 3RT2016-2BB42 is a SIRIUS 3-pole power contactor designed for AC-3 duty, capable of switching 9 A and handling motors up to 4 kW at 400 V AC; it features three main contacts and a single NC auxiliary contact, all driven by a 24 V DC coil for direct PLC interfacing. The unit is a size S00 with spring-loaded terminals for fast, reliable wiring and compact installation in control panels. It carries insulation voltage up to 690 V and front protection IP20, making it suitable for industrial automation environments where robust isolation and safe handling are important. Common applications include starting or stopping three-phase motors, pumps, and conveyors, with the option to add further auxiliary contacts if your control circuit requires signaling or interlocking.