The ABB 3AXD50000000753, also known as AFPS‑61C, is a dedicated power supply board for ABB industrial drive units. It supplies stable internal power for drive control circuits, signal processing units and peripheral functional components. This board adopts industrial‑grade circuit design with built‑in surge suppression and filtering circuits to resist voltage fluctuation and electromagnetic interference in heavy‑industry sites. It is designed for cabinet‑mount installation and supports quick on‑site replacement to reduce equipment downtime. Equipped with onboard status indicators for fault quick‑check. Widely used in metallurgy, pulp‑paper, chemical and power‑plant drive cabinets. As a critical vulnerable spare part for legacy ABB drive systems, every unit passes full‑function testing prior to shipment for overhaul replacement and system maintenance.