Mitsubishi STL-W750-405 - Programmable Logic Controller

Built by Mitsubishi Electric, the STL-W750-405 delivers dependable signal acquisition through its 2 integrated digital inputs, specifically designed for 230V AC applications. This AC input PLC module uses cage clamp wiring to enhance terminal reliability and reduce maintenance in vibration-prone industrial environments. Its slim 12 mm width and 69.8 mm height allow seamless DIN rail mounting, saving valuable cabinet space.

Weighing just 48 grams and consuming 2A internally, this module strikes a balance between energy efficiency and robust input handling. The STLite Series from Mitsubishi is known for modularity, and this model reflects that with a 1-station network footprint — perfect for distributed architectures in machine-level control. It supports a rated input voltage of 230V AC and is compatible with standard panel voltages used in India and global facilities.

Automation engineers rely on the Mitsubishi STL-W750-405 PLC for long-term reliability in applications like conveyor systems, pump monitoring, motor starters, and energy control units. Its performance is backed by Mitsubishi’s decades-long leadership in factory automation.

The Mitsubishi STL-W750-405 finds its core applications in industrial environments that require precise AC signal monitoring. Common use cases include detecting the ON/OFF status of 230V AC push buttons, limit switches, and pilot devices across conveyor automation, energy distribution panels, and HVAC control boards. Its compact size and simple integration make it an excellent choice for OEMs building low-footprint machines or control boxes.

Maintenance engineers value this PLC for its plug-and-play design and tool-free wiring with cage clamp terminals, making replacements or additions fast and error-free during breakdowns. Its robust input filtering and Mitsubishi-grade internal circuitry help prevent false signals in noisy electrical environments, making it especially useful in factories with large motors or inductive loads.

For engineering students and control system learners, the STL-W750-405 serves as a practical learning module to understand real-world PLC input handling using AC signals. Whether it’s used in compact panels, educational rigs, or scalable PLC systems, the Mitsubishi STL-W750-405 PLC ensures high-performance digital input processing with Japanese precision.