--- product_id: 62740099 title: "Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load" brand: "american rotary" price: "฿107917" currency: THB in_stock: false reviews_count: 1 url: https://www.desertcart.co.th/products/62740099-rotary-phase-converter-ad40-40-hp-digital-controls-heavy-duty store_origin: TH region: Thailand --- # 40 HP heavy-duty power Single motor start up to 20 HP MicroSmart digital control Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load **Brand:** american rotary **Price:** ฿107917 **Availability:** ❌ Out of Stock ## Summary > ⚡ Power your precision with the smartest 3-phase converter on the block! ## Quick Answers - **What is this?** Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load by american rotary - **How much does it cost?** ฿107917 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/62740099-rotary-phase-converter-ad40-40-hp-digital-controls-heavy-duty) ## Best For - american rotary enthusiasts ## Why This Product - Trusted american rotary brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Reliable Single Motor Start:** Effortlessly starts motors up to 20 HP, ensuring smooth operation without power hiccups. - • **Versatile Load Compatibility:** Optimized for CNC, VFD, EDM, battery chargers, and resistive loads up to 56 amps at 208-240V. - • **Trusted American Craftsmanship:** Backed by a stellar warranty and responsive customer service, guaranteeing long-term peace of mind. - • **Unmatched 40 HP Power Delivery:** Handles heavy-duty industrial loads with ease, powering up to 40 HP equipment seamlessly. - • **Precision MicroSmart Controller:** Monitors voltage every millisecond for ultra-stable 3-phase power and extended converter lifespan. ## Overview The Rotary Phase Converter AD40 by American Rotary delivers robust 40 HP three-phase power from single-phase input, featuring patented MicroSmart digital controls for millisecond voltage monitoring. Ideal for demanding CNC, VFD, and resistive loads up to 56 amps, it supports single motor starts up to 20 HP at 208-240V. Built heavy-duty and backed by excellent warranty service, it’s the go-to solution for professionals seeking reliable, precise industrial power conversion. ## Description desertcart.com: Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load : Electronics Review: Great Warranty Service - Purchased this unit in 2013 and have had zero issues with it for almost 5 years! A week before it's 5 year warranty was up, had a couple caps failed, sent in the panel for warranty repair and couldn't be happier with the service i received. Chris at American Rotary was great. No questions asked just sent a brand new upgraded panel at no cost (including shipping), Here's a company that stands behind their product 100%. A+++ product and service Customer for life. ## Features - Best for: 20 HP Any load, especially resistive, rectified and computer loads such as CNC, VFD, EDM, battery chargers. For a 40HP load, see sizing table below. Single motor start: 20HP | CNC: 20HP/14.9kW | Resistive: 56 amps - This 40 HP SMART Series Phase Converter is manufactured by American Rotary and provides strong, utility grade 3-phase power from single phase power for any equipment. - The AD also features the MicroSmart Controller and is a patent technology that provides precise control of the phase converter. It monitors the voltage every millisecond providing better voltage control, prolonging the life of the converter. - Manufacturer: American Rotary - Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can start up to a 20 Hp / 56 Amp 208-240v load - Our variable impedance generator (VIT)TM and MicroSmartTM controller combine to make the most powerful and precise rotary phase converter on the market. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00FF1SNVC | | Customer Reviews | 5.0 5.0 out of 5 stars (1) | | Date First Available | September 25, 2013 | | Is Discontinued By Manufacturer | No | | Item Weight | 478 pounds | | Item model number | AD40 | | Manufacturer | American Rotary | | Product Dimensions | 8.4 x 18.5 x 21.9 inches | ## Product Details - **Brand:** American Rotary - **Color:** Black - **Input Voltage:** 240 Volts - **Model Name:** AD40 - **Power Source:** Battery Powered ## Images ![Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load - Image 1](https://m.media-amazon.com/images/I/81d8n5QT7TL.jpg) ![Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load - Image 2](https://m.media-amazon.com/images/I/71NdosV78fL.jpg) ![Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load - Image 3](https://m.media-amazon.com/images/I/61zFLyXKo-L.jpg) ![Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load - Image 4](https://m.media-amazon.com/images/I/71lAEftJOhL.jpg) ![Rotary Phase Converter AD40 – 40 HP Digital Controls Heavy Duty HD CNC|Can Start up to a 20 Hp / 56 Amp 208-240v Load - Image 5](https://m.media-amazon.com/images/I/71mSSO6mu+L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Warranty Service *by D***. on May 3, 2018* Purchased this unit in 2013 and have had zero issues with it for almost 5 years! A week before it's 5 year warranty was up, had a couple caps failed, sent in the panel for warranty repair and couldn't be happier with the service i received. Chris at American Rotary was great. No questions asked just sent a brand new upgraded panel at no cost (including shipping), Here's a company that stands behind their product 100%. A+++ product and service Customer for life. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/62740099-rotary-phase-converter-ad40-40-hp-digital-controls-heavy-duty](https://www.desertcart.co.th/products/62740099-rotary-phase-converter-ad40-40-hp-digital-controls-heavy-duty) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*