GE Motors by Wolong X$D Ultra - 250 HP, 1800 RPM, 3-Phase, TEFC, Premium Efficiency, 2300/4000V, 449T Frame | Model 5KS449SAA2141

The GE Motors by Wolong X$D Ultra® 250 HP premium efficiency motor is the flagship cast-iron industrial motor in the GE Motors line — engineered to outlast, outperform, and outwarranty the competition. Built with a 5-year factory warranty, ISO 1940 Grade 1 vibration balance, and a 316 stainless steel nameplate, this motor is the premium choice for critical industrial applications where downtime isn't an option.

This model runs at 1800 RPM — standard-speed (4-pole) — the workhorse speed for pumps, fans, conveyors, and general industrial drives.

Availability: Made-to-order from the factory. Typical lead time 4-8 weeks. Call us for expedited options and current production slots.

What makes the X$D Ultra a premium-tier motor

• 60-month (5-year) factory warranty — nearly double the industry-standard 36-month warranty. Warranty runs from install date (or 66 months from manufacture, whichever comes first)
• Class H insulation system (GEGARD2400™) — one class above the industry standard Class F; handles higher operating temperatures and heavier duty cycles
• Variable Torque INF:1 inverter capability — fully VFD-rated with infinite turndown ratio. Compatible with any modern sensorless vector or flux vector drive without derating
• NEMA MG1 Part 31 compliant insulation — spike-resistant, survives VFD operation without premature winding failure
• ISO 1940 Grade 1 vibration balance — tighter than NEMA standard; reduces bearing wear and extends motor life
• All-cast-iron construction — cast iron frame, cast iron end shields, cast iron conduit box. No aluminum, no stamped steel. Outlasts rolled-steel competitors in vibration-heavy applications
• 316 stainless steel nameplate — corrosion-resistant for chemical, marine, food processing, and outdoor installations where the nameplate has to remain legible for decades
• NEMA Routine + IEEE 112 Method B testing on every motor — actual performance verification, not just design calculations
• Continuous time rating — 24/7/365 duty capability
• RAL 1001 epoxy ester paint — industrial-grade corrosion protection, tropicalized for humid and chemical environments

Full specifications

Typical applications

• Centrifugal and positive-displacement pumps — water treatment, process, chemical transfer, cooling tower
• HVAC fans, blowers, and air handlers in commercial and industrial buildings
• Conveyors — manufacturing, aggregate, food processing, bulk material handling
• Reciprocating and rotary compressors — shop air, process gas, refrigeration
• Mixers, agitators, and blenders — chemical, food, and wastewater processing
• Machine tools, presses, and OEM equipment requiring premium reliability
• Critical HVAC (chilled water pumps, cooling tower fans) where failure means facility downtime
• Process equipment in continuous-duty service where 5-year warranty pays for itself

Direct replacement for these premium-tier competitor motors

The X$D Ultra is a dimensional and functional equivalent to premium-tier industrial motors. Match the HP, RPM, frame, and voltage — NEMA dimensions drop in identically:

• Baldor-Reliance — Super-E Premium, RPM AC, RPM III, 841 Plus (GEGARD2400 ≈ Baldor's Super-E insulation system)
• WEG — W22 Premium IE3/IE4, W50, Master Line
• U.S. Motors (Nidec) — Titan, Unimount Premium, Corro-Duty Premium
• Marathon — Black Max, 841 Plus Premium, GlobeTrotter Premium
• Siemens — Simotics GP, SD, XP premium efficiency
• ABB / TECO-Westinghouse — MAX-E3, cast-iron premium lines
• Legacy GE motors — M-Series, CD-Series, direct spare-parts replacement in older installations still running original GE 841 or GE EM-Series

The legacy GE heritage — why that matters in Colorado industry

GE Industrial Motors has been supplying motors to Colorado's power plants, mining operations, water districts, and process industries for over 100 years. When Wolong acquired the business from ABB in 2018 (after ABB acquired the GE industrial business), they retained the engineering team, manufacturing processes, and brand reputation that made GE motors the industry standard. The X$D Ultra is the direct evolution of the GE industrial line you already have running in Colorado facilities — same engineering DNA, same ruggedness, improved manufacturing quality, and a longer warranty than ever.

Colorado altitude considerations

The X$D Ultra is rated for standard altitude (3,300 ft) at its nameplate values. At Colorado elevations:

• Denver Metro / Front Range (~5,280 ft): ~3-4% continuous capacity derating. For continuous-duty applications, size one HP step up
• Colorado Springs to Fort Collins (5,000-6,000 ft): Similar to Denver — one HP step up recommended for continuous duty
• Mountain installations (7,000+ ft): 8-10% derating. Size two HP steps up

The X$D Ultra's Class H insulation and 1.15 service factor give you more altitude margin than budget motors. Call (303) 939-8643 with your elevation and duty cycle — we'll confirm correct sizing.

What Colorado Electric Motors Depot offers on every X$D Ultra order

• Factory-direct dealer pricing — authorized GE Motors by Wolong distributor serving Colorado and the Rocky Mountain region
• Free sizing and cross-reference assistance — we'll match your existing Baldor, WEG, US Motors, Marathon, Siemens, or ABB model number to the correct X$D Ultra equivalent
• Nameplate photo-to-quote — text or email a photo of your failing motor's nameplate; we'll quote the X$D Ultra replacement within the hour
• Same-day shipping on stocked units from multiple nationwide distribution centers
• 60-month warranty support — Colorado-local warranty claim processing

Shipping: Motors in this HP range ship via ground for smaller frames or palletized LTL freight for larger frames. Most stocked units ship same day.