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Power Cord Selection Calculator
Enter your load and environment to get the correct IEC 60320 connector family, minimum AWG gauge, NEC temperature derating, and voltage drop — instantly, in your browser.
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Size your cord
All math runs client-side using NEC Table 310.15(B)(2)(a) derating. For guidance only — consult a licensed electrician for final specification.
Your requirements
Recommendation
✓
C13 / C14
10A at normal ambient — standard connector pair.
Minimum conductor gauge
16 AWG
Rated 13A · Derated to 10.4A at 25°C ambient
Derating breakdown
NEC temperature correction (25°C)× 1.00
Continuous load factor× 0.80
Effective capacity needed12.5A
Voltage drop (10ft run)
0.82V (0.68%)
Acceptable (below 3%)
Methodology: Temperature derating uses NEC Table 310.15(B)(2)(a) correction factors for 60°C-rated conductors. Continuous load factor of 0.80 applies when the load runs more than 3 hours (NEC 210.19 for branch circuits). Voltage drop is V = 2 × L × R × I where L = run length, R = conductor resistance per foot. For guidance only — consult a licensed electrician for final specification.
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