Mitsubishi Electric Corporation A1S61P Power Supply Unit

The Mitsubishi Electric Corporation A1S61P MELSEC Power Supply Unit is a DC power supply module that provides a regulated 5 V DC output at up to 5 A to PLC CPUs, I/O modules, and peripheral devices within MELSEC PLC systems. It is designed for installation in PLC racks or panel mounts and supplies stable control power across industrial automation environments, supporting applications such as conveyor controls, packaging machinery, assembly lines, material handling, and process control panels. Key specifications include Output Voltage: DC 5 V, Output Current: 5 A, Input Voltage: AC mains input (model dependent), and built‑in overload and short‑circuit protection with status LED indicators, delivering regulated DC power for PLC logic and interfaces in industrial temperature ranges with standard industrial control regulation compliance. Common replacements listed include Mitsubishi A1S61PN, Omron S8VK-5V 5 A DC Power Supply, and Allen-Bradley 1769-PA4.