Siemens 3RT1944-5BB41 U 24DCV Motor Contactor

Siemens 3RT1944-5BB41 is a DC coil (magnet coil) for Sirius 3RT19 contactors, sized S3, with screw-terminal connections. This part serves as the control coil you energize with 24 V DC to operate the corresponding contactor’s main contacts, enabling safe switching of motor loads in industrial automation. Designed as a replaceable coil for the Sirius 3RT19 family, the 3RT1944-5BB41 specifies a DC 24 V control voltage and employs a screw-terminal wiring scheme for secure, field-wireable connections in control circuits. By matching the Siemens Sirius coil design, it integrates with standard 3RT19 control wiring practices and is used wherever a replacement coil for a 3RT19 coil is required.