Mitsubishi Electric FX3U-4AD Analog Input Module

The Mitsubishi Electric FX3U-4AD is a 4-channel analog input expansion module for MELSEC FX3U PLC systems, delivering 16-bit A/D conversion for precise analog signal acquisition. Each channel can be configured for voltage or current input, with ±10 V voltage range or 4–20 mA / ±20 mA current ranges, and it provides channel isolation while drawing power from the PLC base unit. Designed for process automation with an operating temperature of 0 to 55°C, the module supports temperature and pressure monitoring, flow measurement, sensor feedback, and other automation tasks that require four analog inputs, and it mounts as an FX3U expansion module connected to the base unit. Part of the MELSEC FX3U Series, it is commonly used in process control panels, packaging machinery, and material handling equipment requiring four analog inputs; verified replacements include FX3U-4AD-ADP, FX3U-8AD, and FX2N-4AD.