Industrial PS2-3-2-125 Power Supply Module Assembly

ABB PS2-3-2-125 is a 3-phase busbar accessory for the PS2 motor-protection system, designed to connect three MS165 protection devices with a single 125 A current path. It carries a current rating of Ie 125 A and includes two auxiliary contacts on the sides for signaling and trip indication across all three channels. The part number for this assembly is 1SAM401920R1023, and it is used with MS165 and MO165 motor-protection units within ABB’s PS2 family to streamline panel wiring and ensure coordinated protection across phases. This ABB accessory provides a compact, centralized connection point for three-phase power and control signaling in industrial motor-control panels.