Magnetek PCI-3-4BCDD--P1-S1143 power supply

Magnetek PCI‑3‑4BCDD–P1‑S1143 is a 350 W, 6U CompactPCI AC‑DC power supply designed for industrial control systems such as motor drives and PLC racks. Common failure modes in this class include capacitor degradation (especially electrolytics on the input filtering stage), output voltage sag due to regulator IC burnout, and fan or heat‑sink overheating that triggers thermal shutdowns. First‑check diagnostics should verify input AC integrity and correct polarity, test the regulated 12 V/5 V outputs with a multimeter, inspect for bulging capacitors or burn marks, and review any fault logs or LED status indicators on the chassis.[oss-gpt-20b]

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