ABB Robotics 3HAC3403-1 Industrial Servo Motor

ABB 3HAC3403-1 is an industrial servo motor designed for ABB IRB 2400 robots, configured as the axis 1 and axis 3 drive (Type A). It is cataloged as part number 3HAC3403-1 with the internal identifier 280911898F, and datasheets note it as REV 4. This motor is intended for use with ABB’s IRB 2400 family in S4C and S4C+ configurations and is described as an Elmo API–based servo motor, reflecting ABB's use of Elmo interface technology in these systems. The 3HAC3403-1 provides a matching mechanical-electrical package for replacement or maintenance of legacy axis motors in these robots, and its Axis 1 & 3 designation indicates it drives two joints within the arm’s kinematic chain. While ABB has released numerous servo configurations across IRB 2400 generations, the 3HAC3403-1 remains a recognized option for customers seeking an authentic ABB service part or a tested surplus unit compatible with S4C/S4C+ controllers and the Elmo-based control ecosystem.