Eaton K-Factor N39M28T75XCUEE Transformer - NEMA TP-1
Part Number: N39M28T75XCUEE
Quick Summary
Eaton K-Factor nonlinear ventilated transformer delivers reliable power conditioning for industrial distribution. In demanding facilities, heat buildup, insulation stress, and voltage fluctuations can drive downtime and maintenance costs; this transformer mitigates those risks with copper windings, robust cooling, and adjustable taps. UL Listed, NEMA TP-1 compliant, and engineered for a 150°C rise with 200°C insulation, it meets safety and performance standards for harsh environments. Designed for 400 V input and 208Y/120 V output, it supports scalable, efficient power delivery in data centers, manufacturing lines, and control panels, while offering a clear path to compliance and long-term total cost of ownership advantages.
Product Information
Extended Description
N39M28T75XCUEE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 400V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 150°C rise w/ 200°C insulation systeam, 75 kVA, X, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N39M28T75XCUEE
UPC
786680080616
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
946 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
NEMA TP-1 efficient
Coil material
Copper
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
50-60 Hz
Volt ampere rating
75 kVA
Phase
Three-phase
Primary voltage
400 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N39M28T75XCUEE
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 75 kVA three-phase transformer with copper windings. Business impact: delivers high-load capacity with lower copper losses, improving overall efficiency and reducing energy waste. Application: motor drives and critical process loads in manufacturing lines. Feature: Primary 400 V, secondary 208Y/120 V with taps at +2.5% and -2.5%. Business impact: voltage regulation under fluctuating supply and load, extending equipment life and reducing nuisance tripping. Application: distribution panels, MCCs, and switchgear assemblies. Feature: 50-60 Hz rating with 150°C rise and 200°C insulation. Business impact: reliable operation in hot, open environments, enabling longer service intervals and safer operation. Application: industrial plants and outdoor installations. Feature: Electrostatically shielded construction and WS19 weathershield. Business impact: EMI suppression and outdoor deployment with weather protection, lowering enclosure costs. Application: outdoor substations and exposed equipment racks. Feature: UL Listed and NEMA TP-1 efficient catalog notes. Business impact: proven safety, compliance, and efficiency, supporting regulatory audits and energy programs. Application: engineering spec, procurement, and retrofit projects. Feature: Copper coil material and frame 916A with precise taps. Business impact: durable build, straightforward installation, and predictable performance across environments. Application: panel conformities, retrofits, and new builds.
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FAQs
This transformer is equipped with WS19 weathershield and electrostatic shielding, enabling outdoor or harsh-environment installation. Ensure proper clearance per Eaton guidelines, verify enclosure rating, and plan for the unit’s 23.42 in depth, 28.22 in width, and 48.56 in height. Consider a dedicated enclosure with adequate ventilation and access for taps and maintenance.
Key specs include a 75 kVA three-phase rating, 400 V primary, 208Y/120 V secondary, and 50–60 Hz operation. Taps are located at +2.5% FCAN and -2.5% FCBN to adjust voltage under load. This enables tighter voltage control for sensitive equipment and reduces nuisance trips in fluctuating supply conditions.
Yes. The transformer is UL Listed and NEMA TP-1 compliant, with catalog notes indicating NEMA TP-1 efficiency. These certifications support compliance with safety standards and energy-performance requirements, simplifying procurement and commissioning in regulated environments.
Industries with demanding power quality needs benefit most, including data centers, manufacturing and processing facilities, motor control centers, and critical panel boards. The copper windings, robust cooling, and voltage-tap flexibility support reliable uptime, energy efficiency, and scalable installation in these sectors.
Expected ROI comes from improved efficiency (NEMA TP-1 compliant), reduced heat-related losses, and lower maintenance due to durable copper windings and rugged construction. With minimal field servicing, long service life is supported by a 75 kVA rating and protective features like weather protection and electrostatic shielding, which lower lifecycle costs.