HAK Cable Size Estimator

HAK Cable Size Estimator helps engineers right‑size power cables quickly and confidently.

Highlights

Ampacity‑based selection with ambient, grouping, and installation reduction factors (offline tables).

Voltage drop using R‑only or R+X, with temperature correction, frequency input, and power factor.

Systems & materials: single‑ or three‑phase; copper or aluminum; built‑in AWG/MCM data.

Parallel runs: evaluate single run or search for multi‑run solutions when needed.

Motor helper: choose kW & IE class to auto‑estimate current (with optional 1.25× FLA).

Fast, offline calculations; 8 languages supported.

How it works

Enter load (or use Motor helper).

Set environment: temperature, grouping, installation.

(Optional) Enable R+X and voltage‑drop constraint.

Get the smallest cable that meets your constraints—single or parallel runs—plus a concise math trace.

Free vs Premium

Free: Ampacity sizing, reduction factors, manual parallel runs, presets, motor helper.

Premium (HAK Pro): Voltage‑drop constraint check (R or R+X), automatic parallel‑run search, frequency input for R+X.

Disclaimer Results are for preliminary sizing. Always verify against your project’s governing standard and manufacturer data. “NEC” and “National Electrical Code®” are referenced for context; this app is not endorsed by NFPA.

What’s New (1.1.8) Initial release with ampacity sizing (reduction factors), R+X voltage‑drop, parallel runs, motor assistant, and multi‑language UI. Fixed Subscription issues, added links to EULA and Privacy in binary, also added Eula in app description.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/