700 kcmil THHN Aluminum Ampacity
700 kcmil aluminum THHN: 425A base at 90°C, 375A usable after 110.14(C) termination limit.
Base425A
Usable375A
NEC Table310.16
Full derating calculation
Applications
700 kcmil aluminum handles high-capacity commercial and industrial feeders.
Voltage drop by distance
| Distance (ft) | 240V Drop | % Drop | Verdict |
|---|
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NEC 2023 references verified April 2026