TPU stands for “Teach Pendant Unit,” which is the handheld device used by operators to program and control robots.

Hot plugging refers to the ability to insert and remove the TPU module while the robot is running without causing any

damage or interruption to the robot’s operation.

SC likely stands for “Single Channel,” indicating that this module provides connectivity for one Teach Pendant Unit.

Overall, 3HAC026225-002 is used to enable easy and safe connection and disconnection of a Teach Pendant Unit to an

ABB robot during operation.