FX3S-20MR/ES - Mitsubishi Programmable Controllers Melsec

Mitsubishi FX3S-20MR/ES Programmable Controller from the MELSEC-F Series is a compact and cost-effective Mitsubishi PLC built for small-scale automation and control tasks. Designed by Mitsubishi Electric, the FX3S-20MR/ES offers reliability, efficiency, and simple programming suitable for machine builders, maintenance engineers, and educational projects.

The Mitsubishi FX3S-20MR/ES operates on a wide 100–240V AC power supply and supports up to 30 I/O points with 12 digital inputs and 8 relay outputs. It features a program memory capacity of 16K steps using non-volatile EEPROM storage, ensuring data retention even during power loss. With a 210 ns LD instruction cycle and 500 ns MOV operation speed, it delivers stable control for light to medium-duty automation processes. The controller consumes just 20W of power and does not require a buffer battery, making it energy-efficient and low-maintenance. Compact in size — 75 mm in width, 90 mm in height, and 75 mm in depth — and weighing only 0.4 kg, the FX3S-20MR/ES PLC is ideal for tight panel spaces. It is protected under IP10 class and can withstand temperatures up to 55°C, ensuring durability in industrial environments. Certified under CE, UL/cUL, and UKCA standards, and approved by marine authorities like ABS, BV, DNV GL, LR, and NK, this model upholds global quality and safety standards. Part of the renowned Mitsubishi Programmable Controllers Melsec family, it represents a dependable entry-level solution for automation needs that prioritize precision and simplicity.

The Mitsubishi FX3S-20MR/ES PLC finds applications in a wide range of industries such as food packaging, material handling, and small machine automation. It is particularly suited for equipment like conveyors, labeling machines, bottle filling systems, and compact process controllers. Engineers appreciate the controller’s plug-and-play expandability and intuitive programming interface, which simplify system setup and reduce downtime. For training institutions and technical education centers, this model serves as an excellent learning platform for PLC fundamentals. In maintenance operations, it’s valued for its consistent performance, easy diagnostics, and minimal power consumption. Whether used for single-machine control or integrated into larger systems, the FX3S-20MR/ES provides the reliability and scalability that Mitsubishi Electric is known for in industrial automation.

Professionals can access the Mitsubishi FX3S-20MR/ES datasheet and FX3S-20MR/ES manual for configuration, wiring, and software setup details. Buyers and automation engineers can also check the current FX3S-20MR/ES price through authorized Mitsubishi distributors before upgrading or building new systems. With strong global certifications, compact design, and performance-driven architecture, the Mitsubishi FX3S-20MR/ES Programmable Controller continues to be a trusted choice for efficient control in compact automation environments.