Product Overview
The Schneider Electric 140CPS41400C is a power supply module from the Modicon Quantum series, designed to deliver stable and regulated DC power for industrial automation systems. With an input voltage range of 48–60 V DC, this module ensures reliable operation in environments where power fluctuations are a concern. It provides a fixed output of 5.1 V DC with a summable output current of up to 8 A, making it suitable for powering logic circuits and I/O modules within a Quantum rack. Internal overvoltage and overload protection safeguard connected equipment, while a green LED (PWR OK) offers clear local status indication. This unit is a critical component for maintaining uptime in process control, manufacturing, and infrastructure applications.
Technical Specifications Breakdown
Key parameters for the 140CPS41400C are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Type | Power Supply Module |
| Product Line | Modicon Quantum |
| Part Number | 140CPS41400C |
| Input Voltage | 48–60 V DC |
| Output Voltage | 5.1 V DC |
| Output Current | 8 A summable |
| Rated Power | 15.6 W |
| Input Current | ≤ 3.8 A |
| Inrush Current | 14 A @ 40 V |
| Input Hold-up Time | 13 ms @ 48 V |
| Fuse Rating | 2 A time-lag |
| Overvoltage Protection | Internal |
| Overload Protection | Internal |
| Alarm Output | 1 NC, 6 A @ 220 V |
| Local Signaling | 1 green LED (PWR OK) |
| Configuration | Summable |
| Format | Standard |
Industry Applications
This power supply module is ideal for use in continuous process industries such as water treatment, oil and gas, and power generation, where stable 5.1 V DC power is required for Modicon Quantum racks. Its 48–60 V DC input range allows integration with common industrial battery systems or DC bus networks. The summable output current of 8 A provides flexibility to power multiple modules, reducing the need for additional power supplies. The internal overvoltage and overload protection minimize the risk of damage from transient events, contributing to longer system life and reduced maintenance costs.
Installation & Setup Guidance
When installing the 140CPS41400C, ensure the input voltage is within the rated 48–60 V DC range and that the supply can deliver at least 3.8 A continuously. Use a 2 A time-lag fuse on the input line as specified. The module fits standard Quantum rack slots; align it carefully and secure it with the locking mechanism. Connect the alarm output (1 NC contact rated 6 A @ 220 V) to a monitoring system for remote fault indication. Verify the green PWR OK LED illuminates after power-up. Always follow Schneider Electric's installation manual for your specific rack configuration.
Maintenance & Reliability
Periodically inspect the module for dust accumulation and ensure adequate ventilation around the rack. Check that the green PWR OK LED is lit during operation. The internal protection features reduce the need for frequent intervention, but it is good practice to test the alarm output annually. If the module is exposed to high ambient temperatures, verify that the input hold-up time of 13 ms at 48 V is sufficient for your application's ride-through requirements.
Compatibility & Integration
The 140CPS41400C is designed for the Modicon Quantum automation platform and is compatible with standard Quantum racks. Its summable output configuration allows it to power multiple backplane modules, provided the total current does not exceed 8 A. The alarm output can be integrated with a PLC or DCS for remote diagnostics. No special communication protocols are required; the module functions as a standard power supply within the rack.
Selection Guide & Purchasing Advice
When selecting a power supply for your Quantum system, verify that the input voltage (48–60 V DC) matches your plant's DC bus. The 140CPS41400C is a reliable choice for applications needing 5.1 V DC at up to 8 A. Contact SpareTechPLC to confirm current lifecycle status and availability before ordering. Our team can help you find the right part for your automation needs.
Troubleshooting & Common Issues
If the PWR OK LED is off, check the input voltage and fuse. Ensure the input supply is within 48–60 V DC and that the 2 A time-lag fuse is intact. If the module does not power the rack, verify that the total load does not exceed 8 A. For intermittent operation, measure input voltage stability and check for loose connections. The internal protections will activate if output current exceeds safe limits; reduce load if necessary.
