Eaton N48D28F75CUEE Transformer - 75 kVA K-Factor
Part Number: N48D28F75CUEE
Quick Summary
Eaton N48D28F75CUEE is a K-Factor nonlinear ventilated transformer for industrial power distribution, optimized for 480 V input and 208Y/120 V output. Many facilities struggle with harmonics from drives and rectifiers, which cause overheating, voltage distortion, and unplanned downtime. Certification details are available from the manufacturer on request, with ratings and approvals aligned to global safety and reliability standards. Powered by copper windings and a 75 kVA capacity, it offers two taps for ±2.5% to adapt to site voltage variations. This combination supports safer operation, reduced maintenance costs, and improved energy efficiency for OEMs, panel builders, and service teams.
Product Information
Extended Description
N48D28F75CUEE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /2 at -2.5%, SV 208Y/120V, 115°C rise, 75 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28F75CUEE
UPC
786680141027
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Certifications
Contact Manufacturer
Volt ampere rating
75 kVA
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48D28F75CUEE
Feature: K-Factor nonlinear design reduces harmonic currents and voltage distortion, enhancing system reliability. Business Impact: By limiting heating and insulation stress, it lowers maintenance costs and extends transformer life in high-harmonic environments. Application: Ideal for facilities with drives, rectifiers, and other nonlinear loads in manufacturing, packaging, or automation facilities. Feature: Primary taps at +2.5% and -2.5% provide on-site voltage adjustment. Business Impact: Tightens secondary voltage regulation and minimizes voltage drop across feeders and downstream equipment. Application: Useful for long feeder runs, mixed voltage grids, or sites with generator back-up where voltage sags are common. Feature: Ventilated design enables a 115°C rise rating for safer operation under elevated ambient temperatures. Business Impact: Higher allowable loading improves revenue by supporting peak-demand conditioning and reduces derating in warm environments. Application: Switchgear rooms, data centers, and manufacturing floors with limited cooling capacity. Feature: Copper windings deliver low resistance, lower losses, and robust short-circuit performance. Business Impact: Enhances overall efficiency, lowers energy costs over asset life, and improves protection coordination. Application: Continuous duty applications with variable loads, from machine centers to assembly lines. Feature: 75 kVA three-phase transformer with 480 V primary and 208Y/120 V secondary provides scalable power delivery. Business Impact: Supports mid-size distribution panels, motor control centers, and panel boards with strong transient handling and reliable performance. Application: OEM builds, retrofit projects, and service-side installations across industrial operations. Feature: Standardized documentation and compatibility with Eaton’s transformer ecosystem streamline procurement and installation. Business Impact: Reduces commissioning time, simplifies spare parts planning, and enhances long-term maintenance support. Application: Panel builders and integrators seeking predictable performance and faster timelines in project delivery.
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FAQs
Install the N48D28F75CUEE in a ventilated enclosure sized for a 75 kVA transformer, with clear air flow and compliant wiring. Connect the 480 V primary to the supply lugs using appropriately sized conductors and protective devices, then land the 208Y/120 V secondary to the feeder circuits. Use the +2.5% and -2.5% taps to fine-tune voltage after commissioning, following Eaton's installation guidelines.
The transformer uses a K-Factor nonlinear design to manage harmonic currents without excessive heating or voltage distortion. The 75 kVA rating and copper windings support stable regulation under peak harmonic loads, while the 115°C rise rating accommodates higher ambient temperatures. This combination is well suited for drives, rectifiers, and SMPS-heavy equipment commonly found in modern facilities.
Certifications for this model are provided by the manufacturer on request and can be aligned with local regulatory requirements. When installing, follow applicable electrical codes and safety standards (for example,地域 regulations, OSHA or CE/UL as applicable in your market). Manufacturer documentation can supply the necessary certification data to support compliance.
The N48D28F75CUEE provides two taps at +2.5% and -2.5% to offset supply variation. Engaging the +2.5% tap raises the secondary voltage slightly, while the -2.5% tap lowers it. After installation, verify voltage at the point of use under full load and adjust using the taps according to Eaton’s guidelines to maintain proper equipment operation.
Mid-size manufacturing lines, machine control centers, data centers, and distributed automation panels benefit from the 480 V to 208Y/120 V configuration with K-Factor harmonic management. The 75 kVA rating provides scalable power delivery with strong transient response, making it suitable for OEM builds, retrofits, and service installations across diverse industrial environments.