Observed arrival · 2026-09-21
NEC Tables: Electrical Code Without the Page-Flipping
A free, mobile-friendly reference for conduit fill, ampacity, grounding, box fill, motor currents, wire sizes, and voltage drop.
- For
- Electricians, engineers, inspectors, and electrical students
- Worth noticing
- It supports mixed wire sizes across EMT, PVC, rigid, IMC, and flexible raceways.
Field notes
NECTables divides common electrical lookups into linked reference pages and task-specific calculators, including conduit fill by raceway type, voltage drop, box volume, grounding conductor sizing, and motor full-load amps. The visible coverage spans 14 AWG through 1000 kcmil and includes copper and aluminum ampacity tables at multiple temperature ratings. Its disclaimer identifies the material as independent reference data and advises checking the code edition adopted in the relevant jurisdiction.
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