American Rotary vs Phoenix Phase Converters: Sizing, Balance and Warranty

American Rotary and Phoenix both size rotary phase converters at 2x the motor and put a lifetime warranty on the control panel. We read both makers' own documents to show where they differ: hard starts, CNC, voltage balance and the idler motor warranty. Full comparison with every figure and document: https://builtforproduction.com/blogs/shop-... Run your nameplate through the calculator: https://builtforproduction.com/pages/phase... Call (855) 923-2610. Chapters 0:00 American Rotary vs Phoenix: the short answer 0:36 How each maker sizes a rotary converter 1:47 CNC machines: sizing and voltage balance 2:32 Voltage balance figures by document 3:13 Warranty, part by part 4:10 UL listing: each maker's exact words 5:02 How to choose Sources named on screen (read October 2026) American Rotary: FAQs page; Guide to Choosing a Rotary Phase Converter for CNC Machining; model pages (Three Phase Specifications table); user manuals; Warranty page; AUL page; AUL manual R2.8 Phoenix Phase Converters: Phase Converter Sizing Guide (2026-02-25); Sizing Wizard; The Complete Guide to Phase Converters for CNC Machines 2026; homepage and homepage FAQ; FAQs page; Datasheet NL - PL Models REV-223; How Much Does a Phase Converter Cost (pricing guide); Warranty Policy page Built for Production is an online retailer of phase converters and VFDs. We don't give wiring advice. For anything in your panel, ask a licensed electrician.