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Power Cord

Power Cord

Server Power Cord Types: How to Match C13/C14, C19/C20 and Locking IEC to Your Rack

Kenny Chu July 27, 2026

Server power cord types explained: C13/C14 for standard 1U servers, C19/C20 for high-draw equipment, and locking IEC when accidental pull-out isn't an option. Includes selection chart and PDU matching guide.

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Power Cord

C19 vs C20: What the 16A Rating Means for High-Draw Servers — and Why C13 Won't Do

Kenny Chu July 17, 2026

C19 and C20 are the 16A/250V IEC mating pair for high-draw servers, blade chassis, and large UPS units — one tier above C13/C14. Learn which inlet your equipment has and when to step up.

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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

NEMA 5-15P Plug: What the Ratings Mean and Why Mismatching It Trips Breakers

Kenny Chu July 02, 2026

The NEMA 5-15P is the standard 15A/125V three-prong power plug in North America. Learn what the ratings mean, how the polarized pinout works, and when to step up to a 20A connector.

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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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Power Cord

What Are NEMA and IEC Connectors?

March 27, 2024

This blog explains the differences between NEMA and IEC connectors, detailing their types, uses, and key applications. Learn about the most common NEMA and IEC connectors, including their applications and compatible jacket types for various environments. Cable Leader provides high-quality connector solutions for reliable, safe power connections.

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