Siemens 3RT2016-2BB42 is a compact SIRIUS three-pole power contactor (size S00) with a 24 V DC coil, designed for AC-3 duty. It switches three-phase loads up to 400 V AC with a nominal rating of 9 A and 4 kW, making it suitable for starting and stopping small to mid-size motors in control panels and automation equipment. The unit includes one auxiliary contact (NC) for signaling or interlocking and uses spring-loaded terminals for secure, reliable wiring. As a 3RT2 device, this contactor provides a robust, space-saving solution for motor control applications where a compact footprint and dependable switching are essential.
