Product Introduction
When power interruptions threaten production uptime, the Schneider 140CPS21400C provides reliable backup with its ability to handle up to 100 ms input power interruptions. As part of the Modicon Quantum automation platform, this power supply module delivers stable 5.1 VDC output at up to 8 A summable current, ensuring consistent operation in demanding industrial environments.
Technical Specifications Breakdown
The Schneider 140CPS21400C power supply module is designed for efficiency and resilience. Key parameters from the manufacturer include:
| Parameter |
Value |
| Input Voltage |
24 V (20...30 V) DC |
| Input Current |
3800 mA |
| Inrush Current |
14 A at 20 V; 25 A at 24 V |
| Output Voltage |
5.1 V DC |
| Power Supply Output Current |
8 A summable |
| Associated Fuse Rating |
5 A, slow-blow |
| Maximum Input Power Interruption |
100 ms; 1 ms at 20 V |
| Resistance to Electromagnetic Fields |
10 V/m at 80…2000 MHz |
| Ambient Air Temperature for Operation |
0…60 °C |
| Relative Humidity |
95 % without condensation |
| Operating Altitude |
<= 5000 m |
| Resistance to Electrostatic Discharge |
4 kV contact (IEC 801-2) |
These specifications make the 140CPS21400C suitable for installations where voltage fluctuations, transient currents, and environmental stress are common.
Real-World Applications
In manufacturing plants, the Schneider 140CPS21400C powers PLC racks and I/O modules, ensuring uninterrupted control logic execution. In process automation, its wide input range compensates for battery voltage drops, while the high inrush capability supports capacitive loads during startup. The module’s 4 kV ESD resistance protects against static discharge in dry production areas.
Troubleshooting & Common Issues
Common power supply failures include brownout trips and overload shutdown. The Schneider 140CPS21400C mitigates these with its 100 ms input power interruption tolerance and internal output overvoltage/overload protection. To avoid nuisance tripping, ensure input voltage stays within 20–30 VDC and total load current remains below 8 A. The green PWR OK LED simplifies status monitoring.
Selection Guide & Purchasing Advice
Before purchasing a 140CPS21400C, verify that your application requires 5.1 VDC output and that the input power source can supply at least 3800 mA. Consider purchasing from UBEST Automation (ubest101.myshopify.com) for genuine Schneider parts and fast delivery. Always check compatibility with your Modicon Quantum rack slot.