Siemens 3RT1015-1BB41 AC Industrial Contactor

Siemens 3RT1015-1BB41 is a three-pole SIRIUS power contactor designed for AC-3 duty with a 7 A rating and approximately 3 kW at 400 V. It features a 24 V DC coil and comes in size S00 with screw-terminal connections for straightforward wiring. This model provides three main contacts for switching the primary load and includes one normally open auxiliary contact to support signaling or interlock applications. The compact S00 form factor suits panel layouts where space is limited, and the unit is built for use in typical industrial environments. Typical uses include motor control for conveyors, pumps, fans, and other 3-phase equipment where a 24 VDC control circuit energizes the contactor. The 3RT1015-1BB41 belongs to Siemens’ SIRIUS lineup and aligns with standard IEC/UL motor-contactor practices, with a documented successor in the 3RT2 family such as the 3RT2015-1BB41 for potential future replacement.