Fault-current math you can inspect.
Follow a guided workflow that keeps inputs, assumptions, warnings, and the result visible from start to finish.
Built for a visible calculation trail
- Move through a guided five-step calculation.
- Keep system, transformer, conductor-path, and assumption inputs visible.
- Review the available fault-current result with warnings and calculation details.
- Save projects and share reports with TrueFault Pro.
Free and Pro
Single-phase calculations are free. A one-time TrueFault Pro purchase unlocks three-phase calculations, saved projects, and report sharing. There is no subscription or recurring charge.
Local by default
Calculations, projects, and settings are stored on your device unless you export, share, or back them up through services you choose.
Professional-use qualification
TrueFault is a field aid, not a stamped engineering calculation. Verify inputs, equipment ratings, installation conditions, applicable requirements, and results before use.