Autophix vs Cable Tray Fill Calc

Autophix is a whole car inspection APP. Supports basic functions such as read codes, erase codes, read data stream, version information, and special functions such as maintenance reset, replacement of brake pads, and throttle reset. OBD2 supports full diagnostic mode, and has a cool dashboard. Support the saving and sharing of diagnostic data.

Built for electricians, cable-tray installers, and EEs who need a quick NEC 392 fill check on the deck - not a dashboard you log into. WHAT IT DOES Computes total cable cross-section as a percentage of tray area and compares against the NEC 392 maximum fill: 50% for ladder and wire-basket trays, 40% for solid-bottom and channel trays. Flags over-fill and shows how many more cables of the same type fit before the limit. INPUTS - Unit system: SAE (inches) or Metric (mm) - Tray type: Ladder, Solid Bottom, Wire Basket, Channel - Tray size: 9 imperial sizes / 9 metric sizes - Cable type: AWG #14 to 4/0 (SAE) or 1.5 to 50 mm² (Metric) - Cable count RETURNS - Tray area (sq in or sq mm) - Total cable area (sq in or sq mm) - Fill percentage - Maximum allowed fill per NEC 392 (50% or 40% depending on tray type) - Remaining capacity in number of cables - Over-fill warning (red banner) when above the allowed percentage WHY THIS APP, NOT THE FREE ONES - Math is shown - tray area, total cable area, and the percentage all visible. - NEC 392 fill limits applied automatically - pick the tray type and the cap follows. - Works offline - basements, riser shafts, mid-deck rough-ins. Always available. - No login. No ads. No telemetry. No subscription. PRICING $4.99. Pay once, own it. Lifetime access on iPhone, iPad, and Mac via Family Sharing. NOT A SUBSTITUTE FOR AHJ-stamped electrical drawings. Manufacturer cable-tray load tables. NEC 392 ampacity derating for closely-spaced multiconductor cables - this app handles cross-section fill only, not the temperature derate. Always cross-reference the engineer-stamped layout.