Eaton N48M28B75CUEELS45 Transformer - UL Listed
Part Number: N48M28B75CUEELS45
Quick Summary
The Eaton N48M28B75CUEELS45 transformer delivers 75 kVA three-phase power for 480 V to 208Y/120 V distribution. Designed for demanding industrial environments, it mitigates harmonic stress and voltage variability, helping facilities meet uptime and load demand without overdesign. UL Listed and NEMA TP-1 compliant provide essential regulatory assurance, while electrostatic shielding and low-noise operation support safer, quieter installations. Weathershield WS19 compatibility and copper windings combine durability with long service life, and adjustable taps (+2.5% at FCAN, -2.5% at FCBN) enable precise voltage regulation. The 916A frame and compact dimensions optimize footprint in switchgear rooms, improving installation efficiency and serviceability for ongoing maintenance planning.
Product Information
Extended Description
N48M28B75CUEELS45 Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 80°C rise, 75 kVA, Copper windings, EE, LS45
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B75CUEELS45
UPC
786685197975
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
0.001 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, Low sound equal to 45 dB
Coil material
Copper
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
75 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
80 °C rise
Modification 1
Low sound 45 dB
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B75CUEELS45
Feature: K-Factor nonlinear ventilated transformer; Business Impact: reduces harmonic stress and overheating, improving reliability under variable loads; Application: data centers, manufacturing floors, and critical power enclosures. The model's K-Factor design helps protect downstream equipment while maintaining service continuity. Feature: Copper windings and 75 kVA rating; Business Impact: higher thermal efficiency and robust current handling, lowering operating costs over time; Application: continuous industrial operation with tight voltage control. Copper windings deliver longevity and better short-circuit tolerance compared with alternative materials. Feature: Tap changers with 2 at +2.5% and 4 at -2.5%; Business Impact: enhanced voltage regulation and adaptability to supply variations; Application: facilities with fluctuating utility voltages or diverse load profiles. This feature minimizes voltage drop and protects sensitive equipment downstream. Feature: Compliance and acoustics—UL Listed, NEMA TP-1 compliant, and low sound 45 dB; Business Impact: regulatory certainty and quieter installations reduce nuisance and enclosures space; Application: floor-mounted or wall-mounted distributions in office-adjacent or semi-enclosed spaces. Feature: Weather and shielding—Weathershield WS19, electrostatic shielding; Business Impact: improved outdoor reliability and safety in harsher environments; Application: outdoor transformer enclosures, rooftop installations, or exposed plant rooms, with reduced maintenance cycles. Feature: Frame 916A, copper coil, and specified dimensions; Business Impact: predictable footprint and mounting compatibility with standard switchgear; Application: retrofit projects and new builds where space planning matters, enabling faster installation and wireless integration readiness.
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FAQs
This transformer uses a standard 916A frame with copper windings and supports common switchgear mounting patterns. It features voltage taps at +2.5% and -2.5% to adjust for supply variations, and primary/secondary ratings of 480 V and 208Y/120 V respectively, enabling straightforward integration into existing three-phase distributions.
Key specs include 75 kVA three-phase power, 60 Hz operation, 480 V primary, 208 Y/120 V secondary, and an 80 °C rise rating. The unit also provides low-noise operation at 45 dB and copper windings for durability, with taps that enable voltage regulation within ±2.5% of nominal.
Ideal for industrial power distribution, data centers, and manufacturing facilities requiring reliable voltage transformation from 480 V to 208Y/120 V, harmonic mitigation via K-Factor design, and space-efficient installations with a 916A frame and WS19 weather-shield compatibility.
The transformer is UL Listed and NEMA TP-1 compliant, ensuring safety and efficiency standards are met. Additional features like electrostatic shielding contribute to safety, while the low-noise performance aids compliance with noise requirements in sensitive environments.
The unit offers a robust warranty path and Eaton’s support for installation and service. With copper windings, high reliability, and voltage regulation capabilities, it contributes to reduced maintenance costs, better uptime, and predictable total cost of ownership in high-demand power systems.