Pump Motors

Driving efficiency for your operation.

Introducing the ultimate install-and-forget pump motor. 

A complete upgrade, Ultra Series vertical pump motors combine all the benefits of rugged and reliable X$D Ultra materials with advanced thrust and cooling technologies. All ratings of the Ultra family are fully inverter-duty exceeding NEMA MG1-31 requirements. Ultra motors are completely NEMA premium efficient, meeting IEEE 841 levels with a full cast iron frame, inline, high thrust, space heaters, and a non-reverse ratchet. Durable construction meets the requirements in a wide range of vertical hollow and solid shaft motor applications.


Ultra Series Vertical Pump Motors

Enclosure/Shaft Type
WPI hollow shaft
1200, 1800, 3600
Voltage (60Hz*)
230/460, 460 PWS, 575, 380-440
100, 175, 300% High
HP Range
5 - 1000
NEMA Premium
3 Years
*Also dual 50Hz nameplated.


Enclosure/Shaft Type
TEFC solid shaft
TEFC hollow shaft
TEFC solid shaft
1800, 3600
1800, 3600
Voltage (60Hz*)
230/460, 460
230/460, 460 PWS
P-Base and C-Face
100, 175, 300% High
Inline and 100% High
HP Range
3 - 500
5 - 600
3 - 500
Efficiency NEMA Premium NEMA Premium NEMA Premium
Warranty 3 Years 3 Years 3 Years
Notes *Also dual 50Hz nameplated.


Features & Benefits:

  • All lines fully inverter-duty capable
  • NEMA Premium Efficient - all lines
  • Low temperature rise, Class H insulation
  • Precision RCF data (+/- 5%)
  • Improved axial ball ratchet systems for better equipment protection
  • Effective WPI rodent protection
  • Rugged and reliable cast iron construction
  • Thrust capability 25% above industry standard for deep well applications
  • No water cooling required
  • Expanded 449 frame MV capability
  • SRC couplings available on stock motors
  • Insulated bearing and AEGIS SGR Standard
  • Extended bearing life able to meet 100,000 hour (~12 year) requirement
  • Standard WPI available in 575V rating
  • 3 Year Warranty



Industry leading coil insulation system

GE pump motors are manufactured standard with a GEGARD2400 insulation system. This system exceeds NEMA MG1-31 (which is 3.1 times the nameplate voltage) for motors operating on inverters. This insulation system is comprised of class H materials. The combination  of this and the varnish process provides a typical Corona Inception Voltage of 2400 volts peak with a rise time of 0.1 seconds.

Innovative patented air-cooling technology

GE engineers found a better way to air cool bearings in larger frame TEFC motors. The design improvements result in an amazing ~30 degrees C temperature reduction helping to dramatically extend bearing and winding life.


With a class H insulation, cast aluminum top hat, multi-direction cast in lifting lugs, oversized cast iron conduit box, aluminum anti-rodent screens and heavy-duty cast-iron frame, the WPI Ultra is the most robust vertical hollow shaft motor in the industry.

Operation Efficiency

GE high thrust vertical pump motors have, on average, 20% higher thrust and extended performance than any other similar product in the industry.  As a result, motors in all deep well applications applications can be air-cooled with any bearing configuration.
GE is constantly making improvements in component and manufacturing standardization. The Ultra Series TEFC and WPI designs use many of same components and all make use of proven X$D Ultra electrical designs resulting in some of the fastest custom cycle times in the industry.
Industries: The hollow shaft high thrust design is intended for deep-well pump applications. Solid shaft motors are designed to operate in pump applications including in-line, booster, centrifugal, non-clog, and vertical turbines under extreme conditions for the petrochemical, pulp and paper, waste-water treatment and material processing industries.




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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
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.
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.