Schneider 140CPS12420 Power Supply Module
The Schneider 140CPS12420 is a power supply module for Schneider platforms. Application: Industrial Automation and Control Systems | Output Voltage: 5.1 V DC | Power Dissipation: 6 + (1.5 x Iout) W (where Iout is in A). Factory-sealed, live-rack tested, 48-hour burn-in. 12-month warranty. Ships within 24h.
Technical Specifications
| Type | Power Supply Module |
|---|---|
| Series | Modicon Quantum |
| Application | Industrial Automation and Control Systems |
| Output Voltage | 5.1 V DC |
| Power Dissipation | 6 + (1.5 x Iout) W (where Iout is in A) |
| Harmonic Distortion | ≤ 10% of fundamental RMS value |
| Protection | Internal overvoltage and overload protection |
| Local Signaling | 1 green LED for power (PWR OK) |
| Operating Temperature | 0…60 °C |
| Storage Temperature | -40…85 °C |
| Relative Humidity | 95% without condensation |
| Operating Altitude | ≤ 5000 m |
| Standards | UL 508, CSA C22.2 No 142 |
| Certifications | CE, cUL |
| Dimensions | 5.1 cm (H) x 17.2 cm (W) x 31.8 cm (L) |
| Weight | 0.65 kg |
| Manufacturer | Schneider |
| Model / SKU | 140CPS12420 |
Ships within 24 hours | 12-Month Warranty | Worldwide Delivery
The Schneider 140CPS12420 supplies regulated power to every module in your Schneider rack. When it fails, the entire rack goes dark. Capacitor aging is the primary failure mechanism — accelerated by temperature. A supply at 50°C fails years before one at 25°C. Type: Power Supply Module. Series: Modicon Quantum. Application: Industrial Automation and Control Systems.
We test on a live chassis under load: all rails verified, ripple measured, protection circuits checked. 48h burn-in at 55°C. Printed test report. Genuine Schneider. 12-month warranty. Ships within 24h.
Is my power supply failing?
Symptoms: module runs hotter than normal, output voltage drifts low, ripple noise on analog signals, intermittent resets, or visible capacitor bulging. Proactive replacement during a maintenance window avoids emergency shutdown.
Should I keep a spare?
Yes. A spare costs under $2,000. One unplanned rack outage can exceed $10,000/hour. If your chassis supports dual supplies, install both for redundancy.
What testing is performed?
Visual inspection, live-chassis power-up under nominal and peak load, output voltage regulation, ripple and noise measurement, protection circuit verification, 48h burn-in at 55°C. All values documented in printed test report.
Compatible Parts — Same System
These modules share the same system family as the 140CPS12420. Commonly ordered together for complete rack builds or spare parts kits.
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