In sourcing discussions, MITSUBISHIELECTRIC-QX40-S1 is often placed next to Schneider PLC, Fx5U 32Mt Ess and Mitsubishi HMI so procurement teams can align budgets and technical requirements effectively.
Mitsubishi QX40-S1 - Programmable Logic Controller
| Brand | Mitsubishi |
| Product Type | PLC(Programmable Logic Controller) |
| Product | QX40-S1 |
Technical Specifications of Mitsubishi Programmable Logic Controller QX40-S1
| Specification | Value |
|---|---|
| Series | MELSEC-Q SERIES |
| Type | DC INPUT (PLUS COMMON) |
| Occupied I/O Points on PLC | 16 |
| Integrated Digital Inputs | 16 |
| Depth (mm) | 90 |
| Weight (kg) | 144 |
| Width (mm) | 27,4 |
| Height (mm) | 98 |
| Power Supply (V) | 24 |
| Current Type | DC |
| Wiring | SCREW |
| Int. Current Consumption (A) | 0,06 |
| Rated Input Voltage (VDC) | 24 |
The Mitsubishi QX40-S1 PLC is engineered to manage 16-channel digital inputs with 24 V DC rated input voltage, using plus common logic to ensure precise detection and control in factory automation systems. As part of the robust MELSEC-Q Series, this module integrates easily into both new and existing control panels where space and performance are critical factors. Its slim body, measuring 27.4 mm (W) × 98 mm (H) × 90 mm (D), saves panel space without compromising on build strength, weighing just 144 g.
The QX40-S1 supports screw terminal wiring, offering strong and secure connections suitable for vibration-prone or high-heat environments. With internal current consumption of just 0.06 A, it ensures efficient energy usage while maintaining consistent input performance. The module occupies only 16 I/O points on the PLC, giving system designers flexibility to scale operations without overloading the system bus or power supply. Mitsubishi's signature emphasis on quality control and durable engineering is evident in every aspect of this model’s design.
Widely trusted by engineers across manufacturing, processing, and infrastructure automation industries, the QX40-S1 offers high-speed input scanning, long operational life, and seamless integration with GX Developer and GX Works2 software tools. Its rugged reliability, ease of wiring, and compatibility with 24V DC control circuits make it a dependable input interface for modern industrial automation.
The Mitsubishi QX40-S1 PLC is widely used in applications that require reliable sensing of 24 V DC digital input signals—such as those from push buttons, limit switches, photoelectric sensors, and emergency stops. It is especially suited for industries where input feedback needs to be fast, consistent, and interference-free.
In machine tools and automated assembly lines, it captures input states from operator panels or end-position sensors. In packaging systems, the QX40-S1 monitors gate status and product flow sensors, triggering downstream processes with speed and accuracy. Its screw-type terminals allow quick wiring changes during maintenance, making it a favorite among control panel builders and plant maintenance engineers.
Whether you are designing a compact PLC cabinet or expanding an existing MELSEC system, the QX40-S1 PLC delivers dependable input monitoring performance in a cost-effective footprint. Its compatibility, ruggedness, and field-tested efficiency make it a go-to choice for many Indian industrial automation professionals.
