NORDIX Tools for Contractors

NEC voltage drop for copper or aluminum runs — single or three phase, with the 3% branch-circuit check.

Derated ampacity from NEC Table 310.15(B)(16) with temperature and conduit-fill correction factors.

Check THHN/THWN conductor fill against the NEC 40% limit for EMT, RMC and PVC — with a size recommendation.

NEC 314.16 box volume vs. conductor, device, and clamp allowances.

Full-load amps from HP, voltage, and phase per NEC motor tables.

kVA and primary/secondary amps for single- and three-phase transformers.

NEC dwelling/commercial load calc to size the service and main.

Offsets, saddles, and 90s — multipliers, shrink, and mark distances.

Solve volts, amps, ohms, and watts from any two known values.

Running and starting kW from connected loads and motor inrush.