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Product Description
The Mitsubishi FX3UC-1PS-5V, an FX Series 24V DC input power supply unit, outputs 5V DC at 1A, consuming a maximum of 25W. Designed for DIN rail mounting, it features a 125V/3.15A power fuse for overload protection, handles 30A inrush current for 0.5ms, and provides a 5ms holdup time. Its Class D grounding has a resistance below 100 ohms.
Is Your Device Showing These Signs?
The Mitsubishi FX3UC-1PS-5V power supply unit commonly experiences issues such as blown fuses due to overcurrent events, voltage regulation failures causing PLC malfunction, and capacitor degradation leading to insufficient power delivery. Troubleshooting involves checking input voltage levels, inspecting for short circuits on the 5V output rail, and verifying capacitor ESR values. Replacement of damaged components or the entire power supply unit resolves these problems, ensuring stable and reliable PLC operation.
Technical specifications
The Mitsubishi FX3UC-1PS-5V is a 24V DC input power supply for FX Series PLCs, outputting 5V DC at 1A. It consumes 25W max, mounts on DIN rails, and includes a 125V/3.15A fuse. It tolerates 30A inrush (0.5ms), has a 5ms holdup time, and requires Class D grounding (<100 ohms).
Our Repair Process for the
FX3UC-1PS-5V
Our repair process for the Mitsubishi FX3UC-1PS-5V power supply unit begins with a thorough inspection of input voltage levels to confirm proper power delivery. Subsequently, a detailed examination for short circuits on the 5V output rail is conducted, followed by verification of capacitor ESR values to assess their condition. Upon identifying blown fuses, voltage regulation failures, or capacitor degradation, the affected components are replaced. If component-level repair is not feasible, the entire power supply unit is replaced to guarantee stable and reliable PLC operation.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.


Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.

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