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iec 60320

Power Cord

What Is a C13 Power Cord? How the C13/C14 Pairing Works — and When to Step Up

Kenny Chu July 08, 2026

 C13 and C14 are a mating pair under IEC 60320-1: the C13 female coupler is on the cord; the C14 inlet is built into the server or PDU. Learn the ratings, when to step up to C19/C20, and what to check before ordering.

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Power Cord

IEC Power Connector Chart: What C13, C14, C15, C19 & C20 Mean and How to Choose

Kenny Chu June 08, 2026
Quick Answer

IEC 60320 connectors follow one rule: odd numbers (C13, C15, C19) are female connectors on the cord; the next even number (C14, C16, C20) is the male inlet on the equipment.

  • C13 / C14 — 10A (15A in North America), 250V, 70°C. Standard for PCs, monitors, switches, PDU outlets.
  • C15 / C16 — same 10A/250V but rated 120°C for heat. A C15 cord fits C16 and standard C14; a C13 will not fit C16.
  • C19 / C20 — 16A internationally, commonly 20A in North America (depends on certification). For servers, UPS and rack PDUs.

Most IEC cord mistakes do not show up at the bench. The cord seats, the device powers on, and everything looks fine—until a C13 cord

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