IEEE 841 X$D Ultra

Setting the standard with powerful features

IEEE 841 X$D Ultra® motors meet or exceed the IEEE 841-2009 standard. With an advanced bearing system and class H inverter duty insulation, a test report of each motor to ensure performance, five-year warranty, and all the advanced features that come standard, the X$D Ultra 841 is one of the most durable and reliable motors you can buy.

Frame size 143-449
HP Range 1-300
Poles 2,4,6 & 8
Voltages 460, 575
Efficiency NEMA Premium IP56
Insulation Class H
Bearings Single shielded ball or open roller
Vibration .08ips


Industries: Oil & Gas, Petrochem, Metals & Mining, Water & Waste Water

Features & Benefits:

  • GEGARD Insulation System
    Features Class H insulation materials that increases motor protection against IGBT drive voltage spikes. Exceeds both the IEEE 841-2009 specification and the requirements of NEMA MG1-31. Our X$D Ultra 841 insulation systems comes inverter duty ready, right out of the box.
  • Six Star Bearing System ™
    A key component in motor operation and longevity is the bearing system. The GE Six Star Bearing System has been designed to significantly reduce the potential for bearing failure. Vibration has been reduced to an industry leading 0.04 ips, reducing a leading cause of bearing failure. Regreasing consideration has been made easy with extended greasing provisions, which provides motor users the improved ability to regrease these motors when they are installed in the application.
  • Proven Reliability
    A five year warranty comes standard with every IEEE 841 X$D Ultra motor (60 months operational/66 months maximum from shipment). Rugged cast iron frame, conduit box, endshields & fan cover provide added protection not found in most motors in the market place.



IEEE 841 motor


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Small AC Motors

GE’s Power Conversion business offers a comprehensive range of motors and generators that serve our customers and their processes across a wide range of applications
The X$D Ultra® family of products ranges from 1-350 HP and is built to the highest standards to maximize your return on investment. X$D Ultra is a complete cast iron NEMA Premium® Efficient motor. The Six Star Bearing System™ ensures long bearing life and is complemented by an overall vibration of 0.04 ips (inches per second), which is half of IEEE-841 standards.
Ultra Series Vertical Pump Motors
Ultra Series vertical pump motors combine all the benefits of rugged and reliable X$D Ultra materials with advanced thrust and cooling technologies.