Mitsubishi Electric FX2N-128MR-001 Programmable Logic Controller

The Mitsubishi FX2N-128MR-001 is a high-capacity discrete relay output expansion module for the FX2N PLC family, delivering 128 SPDT relay outputs to drive a wide range of field devices from a single base rack. It mounts in the FX2N PLC base rack and uses screw-terminal field wiring for reliable connections. Key specifications include 128 outputs with SPDT contacts, an output voltage rating up to 240 VAC or 30 VDC, and an approximate 3 A per channel (platform dependent) for general purpose AC/DC loads. Relay contacts are isolated between channels, with output LEDs providing status indication. For inductive loads, contact suppression is recommended. Common applications span conveyor systems, packaging machinery, assembly lines, material handling equipment, and building automation where many relays, lights, solenoids, or contactors are controlled by PLC logic. Maintenance teams and system integrators use this module for I/O expansion, machine upgrades, and replacing worn or failed output modules. Common replacements include Omron CJ1W-OD262 and Mitsubishi FX3U-128MR-001, reflecting its role in cross-brand and cross-generation automation upgrades, while remaining compatible with the Mitsubishi FX2N PLC family and its base-rack architecture. Operating temperature is listed as industrial range.