Siemens 3RT2016-2BB42 3-Phase Power Contactor

Siemens SIRIUS 3RT2016-2BB42 is a three-pole power contactor rated for AC-3e/AC-3 duty at 400 V and 9 A per circuit, with a 4 kW motor power rating at 400 V. It uses a 24 V DC coil and provides three main normally open contacts (3 NO) plus one normally closed auxiliary contact (1 NC) for signaling, all in the compact S00 size with spring-loaded terminals for reliable wiring. This Siemens 3RT2 device is designed for starting and stopping 3‑phase motors, pumps, and other loads in industrial automation where space efficiency and robust connection are essential. Its AC-3e/AC-3 rating, 3-pole configuration, and spring-terminal design support straightforward installation and dependable operation in control panels and equipment racks.