Product Overview
When your Modicon Quantum system requires a reliable interface for discrete I/O, the Schneider 140CRA21100 delivers. This DIO drop interface module operates on a 115/230 VAC supply with a wide input range of 85 to 276 VAC, ensuring stable performance across varying power conditions. Part of the trusted Schneider Electric Modicon Quantum series, the 140CRA21100 is designed to streamline connectivity with a single DIO drop port and robust protective features that minimize downtime and maintenance costs.
Technical Specifications Breakdown
Key parameters of the Schneider 140CRA21100 highlight its engineering for industrial reliability. The module consumes a rated power of 50 VA and provides a nominal output voltage of 5.1 V at 3 A. It supports 30 input words and 32 output words, enabling efficient data handling. The following table summarizes critical specifications:
| Specification |
Value |
| Supply Voltage |
115/230 VAC |
| Supply Frequency |
47 to 63 Hz |
| Max Supply Current |
0.2 A at 115 V / 0.4 A at 230 V |
| Inrush Current |
10 A at 115 V / 20 A at 230 V |
| Rated Power |
50 VA |
| Output Voltage |
5.1 V |
| Nominal Output Current |
3 A |
| I/O Words |
30 input / 32 output |
| Short-Circuit Protection |
With |
| Output Overvoltage Protection |
With |
| Power Dissipation |
11 W |
The built-in short-circuit and overvoltage protection significantly reduce the risk of module damage, lowering total cost of ownership over the product lifecycle.
Industry Applications
In automated manufacturing lines, the Schneider 140CRA21100 interfaces remote I/O racks with the controller, handling up to 30 input and 32 output words. For example, in a bottling plant, this module connects sensors and actuators to the Quantum PLC, ensuring precise control while withstanding voltage fluctuations. Its wide temperature range (0 to 60 °C operation) makes it suitable for factory floors without HVAC systems. By choosing the 140CRA21100, operators gain extended uptime and fewer unplanned repairs.
Installation & Setup Guidance
Mount the 140CRA21100 onto any compatible Modicon Quantum backplane (available in 2, 3, 4, 6, 10, or 16 positions). Use the provided 7‑pole terminal block for field wiring. Ensure the supply voltage matches your site: either 115 VAC or 230 VAC. The module auto‑detects the range 85–276 VAC, so no jumper configuration is required. For proper diagnostics startup, verify RAM address and checksum settings during initial commissioning. Always install a 1.5 A fuse on the supply line as specified.
Maintenance & Reliability
Routine inspection of the Schneider 140CRA21100 involves checking the fuse and terminal connections. The module’s protective treatment (TC) and compliance with UL 508 ensure long service life in harsh environments. With a storage temperature of -40 to 85 °C and relative humidity up to 95%, the unit withstands warehouse extremes. Regular power cycling and visual inspection of the enclosure help maintain reliability; the low 11 W power dissipation keeps thermal stress minimal.
Selection Guide
Before purchasing, verify that your backplane has an available slot and that your system power supply can support the module's 50 VA load. The 140CRA21100 integrates seamlessly with Quantum processors and is ideal for new installations or upgrades. For genuine parts and fast delivery, consider ubest101 as your trusted supplier of Schneider automation spares.