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250 HP, 1800 RPM, NEMA Frame 449T, 460 V
    The X$D Ultra® 841 meets or exceeds the IEEE 841-2001 Standard. With an advanced insulation and bearing system, a test report of each motor to ensure performance, 5 year warranty and all the advanced features that come with it, the X$D Ultra® 841 is the most durable and reliable motor you can buy.

    The X$D Ultra® 841 family of products range from 1-250 HP and is built to the highest standards to maximize your return on investment. X$D Ultra® 841 is a complete cast iron motor exceeding NEMA Premium® Efficiency standards. 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. The X$D Ultra® 841 also, incorporates GEGARD2000™ insulation system which has the ability to withstand repeated 0.1 microsecond rise time/2000 volt spikes for 460 and 575 line voltages. All motors are inverter compatible and have the speed range capabilities stamped on the nameplate.

    Industries Oil & Gas, Power & Energy, Water/Wastewater, Cement, Pulp and Paper, Metals, Mining, Chemical

    Applications
    • Pumps
    • Fans
    • Blowers
    • Compressors
Unit of Measure

Specifications

Enclosure Type

 N/A Totally Enclosed Fan Cooled

HP

 N/A 250

RPM

 N/A 1800

Voltage

 N/A 460 V

FLA

 N/A 280.0

Nom. Eff.

 N/A 96.2

Guar. Min. Eff.

 N/A 95.8

Frame

 N/A 449T

Price Symbol

 N/A G4-7UX

C Dimension

 N/A 54.12 in

Weight

 N/A 2790 lbs

Norm. Stk.

 N/A No

Certification

 N/A
EIS Act 2007 Compliant

GEGARD 2400™

NEMA Premium

Manufacturer

 N/A
GE

Standard Features

Poles

 N/A 2 4 6 8

Efficiency

 N/A Meets or Exceeds NEMA Premium nominal. Exceeds all NEMA Premium minimum efficiencies.

Frequency

 N/A 60 Hz

NEMA Design

 N/A B

Agency Approvals

 N/A C-390 CSA - Motors UL - Component and Insulation System Recognition

Altitude

 N/A 3300 ft

Ambient Temperature

 N/A 40 ºC

Balance/Vibration

 N/A ISO Grade 1, Ball Bearings: 0.040 in/sec (P) Roller Bearing:2P: 0.0003 in (P-P), 4P: 0.0004 in (P-P), 6P: 0.0005 in (P-P), 8P: 0.0007 in (P-P)

Bearing Caps

 N/A Both ends are gasketed

Bearing Housing Rise

 N/A 2-pole: 50°C, 4, 6, 8-pole: 45°C

Bearing Protection

 N/A IP55, Inpro Seal both ends

Bearing Type

 N/A Roller

Centered Core

 N/A Allows F1-F2 field conversion

Conduit Box

 N/A Gasketed and rotatable, Cast iron

Div. 2 Temp Codes

 N/A NEMA Design B motors have an Auto Ignition Temperature of 200°C stamped on the nameplate. A Division 2 Nameplate can be provided.

Drains

 N/A Stainless Steel T-drains in lowest section of both endshields

End Shield

 N/A Cast Iron

Fan

 N/A Bronze Non-Sparking Plastic

Fan Cover

 N/A Cast Iron

Fasteners

 N/A SAE, Grade 5

Foot Draft Angle

 N/A ±1.5 º

Foot Flatness

 N/A 0.005 in

Frame Material

 N/A Cast Iron

Grease

 N/A Polyurea

Ground

 N/A Ground lug in Conduit Box and Frame ground

Industry Specifications

 N/A Meets IEEE 45 Marine Duty Meets GM 7E-TA Automotive Duty

Insulation Class

 N/A Class H

Insulation System

 N/A GEGARD2400™. Non-Hygroscopic, Anti-Fungus, 2400 Volt or 2000 Volt @ 0.1 microsecond rise time. Exceeds NEMA MG1-31

Inverter Capabilities

 N/A Variable Torque inf:1, Constant Torque 20:1

L10 Bearing Life

 N/A Direct Coupled: 130000 hrs, Belted: 26280 hrs

Lifting Means

 N/A 4 Lugs cast into frame

Mounting

 N/A F1 as Standard and Modifiable to F2

Mounting Holes

 N/A 2 per foot

Nameplate

 N/A Stainless Steel includes Weight, 3/4 Load Efficiency, Vibration Limit

Oil Mist Lube

 N/A Includes provisions for conversion to Oil Mist Lubrication

Paint

 N/A Buff, Epoxyester

Relubrication

 N/A Both ends, extended through the fan cover

Service Factor

 N/A Cast Aluminum

Service Factor

 N/A 1.15

Shaft TIR

 N/A Meets IEEE 841, 0.001 in for shaft diameter 1.625 in and smaller, 0.0015 in for shaft diameter greater than 1.625 in.

Special Painting

 N/A Meets IEEE 841

Tach Mounting

 N/A Tach kits for field modifications are available
Temperature Rise1 N/A 80 ºC

Tests

 N/A NEMA Routine Report including Vibration supplied with motor, IEEE 112

Time Rating

 N/A Continuous

Vibration Pads

 N/A Cast in vibration pads for repeatable measurements

Warranty

 N/A 60 months from date of purchase or 66 months from date of shipment, whichever occurs first

Features

N/A

  • Noise level exceeds IEEE-841
  • 1 At 1.0 SF