Power One HC12-3.4-A Power Supply

The Power‑One HC12‑3.4‑A is a single‑output linear power supply that delivers 12 VDC at up to 3.4 A from a 100–240 VAC input. Common failure points for this model and similar industrial supplies include overheating of the internal transformer or regulator, degradation of capacitors leading to high output ripple, and shorted or failed rectifier diodes. Start by verifying the AC input voltage and polarity with a multimeter, then measure the 12 VDC output under load; inspect the unit for burn marks, swollen electrolytics, or loose connections before proceeding to component replacement.[oss-gpt-20b]

Need your Power One repaired or tested?

We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.

📞 Call Now: 1 (336) 969-0110

Free Estimates • Industrial-grade testing • Nationwide Service

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We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.

📞 Call: 1 (336) 969-0110 ✍️ Start Free Diagnostic

Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service


Other Repaired Units by Power One

Power One HC12-3.4-A Power Supply
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Power One LR38879 D.C. Power Supply
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Power One PFC375-1015 dc power supply
Power One HBS-3/OVP-A power supply

Contact Us

🚑Shop Location🛠️

Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.

📞Phone

1-336-969-0110

📦Mailing Address🚛

Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.