Mitsubishi FX3U-48MR-ES-A PLC CPU Base Unit for MELSEC-F FX3U Series

The Mitsubishi FX3U-48MR-ES-A (FX3U-48MR-ES-A) is a high-performance programmable logic controller central processing unit designed for the MELSEC-F FX3U series. Engineered for complex machine automation and distributed control tasks, this main base unit integrates 48 local inputs and outputs directly on board. The I/O complement consists of 24 digital inputs rated for 24 V DC with selectable sink or source wiring, alongside 24 digital relay outputs featuring normally open contacts capable of switching up to 2 A at 240 V AC or 30 V DC with a 10 ms response time. The controller offers a substantial internal memory capacity of 64,000 steps in RAM and can expand up to 256 total I/O points using modular expansion blocks. Operating on a universal supply voltage of 100 to 240 V AC, the unit includes an integrated RS-422 serial interface for programming and peripheral communications, screw clamp terminal blocks for secure wiring, and standard DIN-rail mounting with a width of 182 mm. Also designated under model code FX3U48MRES, it serves as a reliable solution for packaging machinery, material handling systems, and assembly line automation.