Siemens 3RT2017 2BB41 Three Phase AC Contactor

Siemens SIRIUS 3RT2017-2BB41 is a 3-pole power contactor designed for AC-3e/AC-3 motor loads, rated to 12 A and 5.5 kW at 400 V, with a 24 V DC control coil. It features spring-loaded terminals, a compact S00 frame, and one normally open auxiliary contact, making it suitable for straightforward control circuits in tight panels. This device is designed to switch three-phase inductive loads in electrical control cabinets—common motor starters, conveyors, pumps, and fans—up to 400 V nominal with a 12 A operating current rating. As part of Siemens’ SIRIUS 3RT2 family, 3RT2017-2BB41 delivers a reliable balance of power handling and compact footprint, ideal where space is at a premium but a robust motor-controlling solution is required. Key specs include: 3 poles, AC-3e/AC-3, 12 A rating, 5.5 kW at 400 V, coil 24 V DC, 1 NO auxiliary contact, and spring-terminal connections, all in the S00 size.