Siemens 3RT2016-1BB41 is a compact three-pole power contactor with a 24 V DC coil designed for AC-3e/AC-3 motor switching. It is rated for 9 A with a 4 kW load at 400 V and includes one normally open auxiliary contact, all in the screw-terminal, S00-size package. The device weighs about 0.29 kg and is part of the Siemens SIRIUS 3RT family, suitable for motor-start and stop tasks in automation equipment, with a main-circuit insulation rating of up to 690 V and coil-to-main isolation of 400 V. Ambient operating range is -25 to +60 °C, with rugged performance suitable for standard industrial environments up to 2,000 m above sea level.
