conductor ampacity calculator

Transformer Secondary Conductor Size Screening Calculator — Instant Results from Full-Load Current

Quickly determine the right transformer secondary conductor size with our instant screening calculator—just enter full-load current and get reliable results in seconds. Perfect for electricians and engineers who need fast, code-minded checks on the job.

Feeder Cable Sizing AWG for transformer Calculator : Best Must-Have NEC Tool

Take the guesswork out of NEC compliance with our feeder cable sizing calculator. This must-have tool helps electricians and DIYers quickly find the right conductor sizes, ampacity, and voltage drop.