Eaton N39M28T45XCU Transformer - K-13, Ventilated, UL Listed
Part Number: N39M28T45XCU
Quick Summary
Eaton N39M28T45XCU transformer delivers K‑Factor nonlinear power conditioning for industrial and commercial distribution systems. In busy facilities, voltage distortion, harmonics, and heat buildup challenge uptime and asset life; this design helps mitigate those risks and supports longer service intervals. UL Listed safety certification accompanies a rugged 915D frame, copper windings, and electrostatic shielding, enabling reliable operation in demanding environments. The unit also features 400 V primary and 208Y/120 V secondary ratings with 50–60 Hz compatibility, plus selectable taps to stabilize voltage under fluctuating loads. By combining robust construction with scalable 45 kVA capacity, it offers a predictable path to improved reliability and lower total cost of ownership for power distribution projects.
Product Information
Extended Description
N39M28T45XCU Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 400V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 150°C, 45 kVA, Cu windings, Elec. Shield, Frame: 915D, uses WS39
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N39M28T45XCU
UPC
786680061318
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
578 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.
Certifications
UL Listed
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
915D
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
50-60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
400 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N39M28T45XCU
Feature: K-Factor nonlinear transformer design provides resilient voltage regulation under non-linear loads. Business Impact: reduces heating and extends component life, lowering maintenance costs and minimizing unplanned downtime. Application: ideal for facilities with motor drives, welders, and mixed-load panels where harmonic currents challenge standard transformers. Ventilated cooling with a rated 150°C rise improves thermal margin, allowing short-term overloads without overheating. This translates to fewer trip events and longer service intervals in hot environments, such as machine rooms and outdoor substations. Application: industrial plants and commercial sites with high ambient temperatures. Taps: two at +2.5% FCAN and four at -2.5% FCBN provide precise voltage regulation amid supply fluctuations. Business impact: stabilized downstream equipment voltage, reduced capacitor switching stress, and improved energy efficiency. Application: installations near long feeder runs or unstable utility feeds. Copper windings plus electrostatic shielding reduce copper losses and EMI, improving signal integrity for control systems. Business impact: lower heat, better protection of sensitive drives, and safer equipment operation. Application: control panels, robotics cells, and data-center enclosures. Mechanical robustness: Frame 915D with WS39 weathershield supports durable operation in dense racks or outdoor-rated installations. The design tolerates 50–60 Hz operation with UL-listed safety, and a 45 kVA rating ensures scalable distribution without adding equipment. Application: retrofit projects or new builds seeking reliable, ready-to-install power transformation. Warranty and service: standard Eaton policy offers one year from installation or 18 months from shipment, providing assurance during commissioning and early operation.
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FAQs
For proper installation, ensure space for the 915D frame and WS39 weathershield fitment, adequate ventilation for the 150°C rise rating, and room for taps access (+2.5% FCAN, -2.5% FCBN). Connect to 400 V primary and 208Y/120 V secondary circuits designed for 50–60 Hz operation, and confirm UL Listed wiring practices in the electrical room.
The K-Factor nonlinear design targets non-linear loads to minimize overheating and maintain voltage quality, reducing harmonic-related losses. This improves reliability of downstream drives and controls, lowers maintenance intervals, and supports safer operation in facilities with mixed loads such as motor drives, inverters, and high-capacitance equipment.
Yes. With a 45 kVA rating and 400 V to 208Y/120 V distribution, the N39M28T45XCU is well-suited for data centers, manufacturing lines, and other facilities with dense, non-linear loads. Its ventilated design, copper windings, and shielding help manage heat and EMI, while taps enable voltage stabilization under fluctuating utility conditions.
This transformer is UL Listed, confirming compliance with essential electrical safety standards for equipment installed in electrical rooms and switchgear environments. While CE or IP ratings are not specified in the datasheet, UL listing provides a proven baseline for safety, reliability, and regulatory alignment in North American applications.
Copper windings and electrostatic shielding reduce losses and EMI, contributing to cooler operation and longer service life. The 45 kVA capacity supports scalable power needs, and the warranty terms (one year from installation or 18 months from shipment) reduce risk during commissioning, delivering lower total cost of ownership through improved uptime and predictable maintenance planning.