Product Overview
The 140DAI54300C is a discrete input module from the Schneider Electric Modicon Quantum series. It provides 16 input channels at 115 VAC, giving control systems a direct interface to field devices such as switches, pushbuttons, and relay contacts. If you maintain a Quantum-based line, this module is a practical, ready-to-ship spare that keeps your process running without a redesign.

Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Discrete input module |
| Product Line | Modicon Quantum |
| Input Channels | 16 |
| Input Voltage | 115 VAC |
| Input Current | 11.1 to 13.2 mA |
| Max Leakage Current | 2.1 mA |
| Bus Current Requirement | 180 mA |
| Max Power Dissipation | 5.5 W |
| Addressing Requirement | 1 input word |
| Ambient Temperature | 0 to 60 °C |
| Marking | CE |
| Standards | UL 508, CSA |
| Protective Treatment | Conformal coating |
| Weight | 0.3 kg |
Key Parameters Explained
The 115 VAC input voltage suits installations where field signals arrive at control voltage rather than low-level DC. With 16 channels on a single module, you reduce card count and rack space. The 11.1 to 13.2 mA input current and 2.1 mA maximum leakage current help keep signal detection stable in electrically noisy plants. A single input word for addressing simplifies programming and keeps I/O mapping clean. At 5.5 W maximum power dissipation, the module adds little heat to the enclosure.

Where It Fits
Use the 140DAI54300C in oil and gas, water treatment, and general manufacturing where 115 VAC discrete signals must be monitored. Typical duties include reading valve position feedback, pump run status, and panel switch states. The conformal coating protects against moisture and dust, which matters in humid or dusty plant rooms. The 0 to 60 °C ambient range covers most climate-controlled control rooms and many field cabinets.
Integration and Setup
This module occupies one slot in a Modicon Quantum rack and requires one input word of addressing. Before installation, confirm rack power budget and slot assignment. Follow the manufacturer’s wiring and configuration guidance for your specific system. If you are integrating into a networked architecture, confirm gateway and cabling requirements with your supplier, since network modules and connection accessories are separate items.
Buyer’s Checklist
Before ordering, verify your rack series, available slot, and power budget. Confirm that your field devices supply 115 VAC signals and that your addressing plan allows one input word. Check that the ambient conditions stay within 0 to 60 °C. If you need help matching this module to your existing Quantum setup, Oil AutoTech offers hands-on technical selection support. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
Reliability and Maintenance
Inspect the module periodically for loose connections and dust buildup. Keep cabinet filters clean to maintain airflow and stay within the rated temperature range. Because the unit carries conformal coating, avoid abrasive cleaning that could damage the protective layer. For safety-related circuits, follow the manufacturer’s safety manual and plant procedures at all times.
Contact Oil AutoTech today for pricing and availability.
