--- title: Baldor General Purpose Motors with AEGIS Shaft Grounding description: Baldor (ABB) Super E Motors with AEGIS (-G) are versatile & durable. And they're ready to use with VFDs, with Class H insulation & reliable shaft grounding. image: https://blog.est-aegis.com/hubfs/Imported_Blog_Media/super-es-e1597172733332-300x262.png --- [![Electro Static Technology](https://blog.est-aegis.com/hubfs/raw_assets/public/public/images/electro-static-technology.svg "Electro Static Technology")](https://www.est-aegis.com/) [![Aegis](https://blog.est-aegis.com/hubfs/raw_assets/public/public/images/Aegis.svg "Aegis")](https://www.est-aegis.com/) - [+1 866-738-1857](tel:+1%20866-738-1857) - [Products](https://www.est-aegis.com/products/) - [AEGIS® SGR – for motors under 500 HP/375 kW](https://www.est-aegis.com/product/sgr/) - [AEGIS® uKIT – for common NEMA/IEC frame size](https://www.est-aegis.com/product/sgr-ukit/) - [AEGIS® RPPR – for reactor recirculating pumps](https://www.est-aegis.com/rppr-resources/) - [AEGIS® EV and EVO Rings - for electric vehicles](https://www.est-aegis.com/product/ev-evo-rings/) - [AEGIS® PRO Series – for motors over 300 HP/225 kW](https://www.est-aegis.com/product/pro-series/) - 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They are available in NEMA frame sizes from 42 to 500, and power ratings from 1/8 to 450 hp.  Available mounting styles include foot mounted and several pump motors:  C-face (with and without feet), and JM, JP, and West Coast Pump.  These high efficiency motors are ideal for a wide range of HVAC and pumping applications. In many applications, motors can run even more efficiently at reduced speed.  This can be done with variable frequency drive (VFD) control.  HVAC and pumping applications, particularly, can save energy with VFD control. ![cutaway-aegis-inside](https://blog.est-aegis.com/hs-fs/hubfs/Imported_Blog_Media/cutaway-aegis-inside.png?width=300&height=225&name=cutaway-aegis-inside.png) VFDs do present a hazard to motor windings and bearings.  So all Super E motors include Class F or H insulation systems and Class B temperature rise to protect the windings, satisfying NEMA MG1 Part 31.4.4.2.  And models with "-G" part numbers include an AEGIS® Shaft Grounding Ring mounted inside.  AEGIS Rings bleed VFD-energized charge off the motor shaft, preventing it from arcing through the bearings. Between their insulation systems and their AEGIS rings, Baldor Super E "-G" motors are fully ready for VFD control. So if you need a premium efficiency general purpose motor that can safely be run on VFD, consider a Baldor Super E Motor with the "-G" suffix.   AEGIS Rings also come with a [2-year extended warranty](https://www.est-aegis.com/product/extended-warranty/) against bearing fluting damage. No other form of protection against VFD-caused bearing damage offers a warranty like this. [![2-Year Extended Warranty](https://no-cache.hubspot.com/cta/default/20974229/3b258d08-3058-4c7f-a866-2991b627f2e0.png)](https://cta-redirect.hubspot.com/cta/redirect/20974229/3b258d08-3058-4c7f-a866-2991b627f2e0) To learn more about AEGIS shaft grounding and best practices for electrical bearing protection, [sign up for a training](https://www.est-aegis.com/resources/training/). We offer monthly live training webinars, and we can also visit your facility to review your exact application. [![Sign Up For Training](https://no-cache.hubspot.com/cta/default/20974229/69dd56c7-bbd1-4ad0-ae5c-29de322039f0.png)](https://cta-redirect.hubspot.com/cta/redirect/20974229/69dd56c7-bbd1-4ad0-ae5c-29de322039f0)   [Motors on VFD](https://blog.est-aegis.com/tag/motors) ### Subscribe To Our Blog ## Read On ### [Baldor's 2020 Catalog Includes Over 100 New Motors with AEGIS](https://blog.est-aegis.com/baldors-2020-catalog-includes-over-100-new-motors-with-aegis?hsLang=en-us) Since 2013, ABB's Baldor Electric has offered Super-E® motors with AEGIS® Shaft Grounding Rings... ### [Rugged and Reliable Vertical Motors for Inverter-Duty Applications](https://blog.est-aegis.com/rugged-and-reliable-vertical-motors-for-inverter-duty-applications?hsLang=en-us) Vertical motors run on variable frequency drives are susceptible to electrical bearing damage and... ### [Washdown Motors: More Reliable with AEGIS](https://blog.est-aegis.com/washdown-motors-more-reliable-with-aegis?hsLang=en-us) Washdown motors are used in industries ranging from food processing to pharmaceutical... 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