Technical Support
Sizing Help
Want to Understand the Math Behind the Wizard?
The wizard does the heavy lifting, but if you'd like to see exactly how we calculate the right size — FLA math, startup surge allowances, multi-machine loads, and future-proofing — our engineering team published the full methodology.
Talk to a Phase Converter Engineer
📞 (800) 417-6568Free sizing help • Lifetime warranty • Made in USA • Mon–Fri 7AM–5PM MST