Eaton N48M28T55CUEELS55 Transformer UL Listed 3-Phase 500kVA
Part Number: N48M28T55CUEELS55
Quick Summary
Eaton N48M28T55CUEELS55 transformer powers three-phase power distribution in industrial facilities. Across harsh environments, engineers seek reliable voltage stability, effective heat management, and quiet operation under harmonic loads. UL Listed and NEMA TP-1 compliant, this unit also carries a low-sound profile aligned with Eaton’s 55 dB specification. Coupled with copper windings, a 500 kVA rating, and flexible taps, it delivers dependable efficiency and installation versatility for modern electrical rooms. For manufacturers and infrastructure teams, the combination of robust protection, easy integration with standard switchgear, and scalable voltage options supports reliable uptime and safer, compliant installations.
Product Information
Extended Description
N48M28T55CUEELS55 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, 150°C rise w/ 200°C insulation systeam, 500 kVA, Copper windings, EE, LS55
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T55CUEELS55
UPC
786680080531
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 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 55 dB
Coil material
Copper
Frame
920E
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
500 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Modification 1
Low sound 55 dB
Special features
Electrostatically Shielded
Weathershield
WS35
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T55CUEELS55
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The N48M28T55CUEELS55 employs a K-Factor nonlinear ventilated design to manage harmonic currents, reducing transformer heating and extending life in facilities with non-linear loads. This translates to improved power quality, fewer reliability risks, and lower cooling requirements in data centers and automation floors. Application: plants with motor drives and rectifier loads benefit from stable voltages and reduced thermal stress. Feature → Business Impact → Application: Copper windings deliver lower resistive losses and better voltage regulation, driving higher overall efficiency and lower heat generation. This supports energy cost reductions and longer transformer life, particularly in continuous-operation environments such as manufacturing lines and distribution centers. Application: industrial logistics and process plants seeking dependable energy performance. Feature → Business Impact → Application: Tap settings at two taps (+2.5%) and four taps (-2.5%) allow precise voltage regulation under load. This minimizes voltage drift at the secondary (208Y/120 V) during startup and peak demand, reducing nuisance tripping and ensuring sensitive equipment stays within tolerance. Application: critical control panels and PLC-powered processes. Feature → Business Impact → Application: The unit’s compliance features, including UL Listed and NEMA TP-1 alignment, plus a low 55 dB sound level, simplify procurement and reduce regulatory review time. Application: compliant installations in open-plan facilities and shared electrical rooms. Feature → Business Impact → Application: Weathershield WS35 and electrostatic shielding enhance outdoor or harsh-environment performance, decreasing maintenance and protecting windings. Application: outdoor substations and exposed installations. Feature → Business Impact → Application: The 500 kVA three-phase rating with 480 V primary and 208Y/120 V secondary supports scalable, modular power distribution for growing plants, with straightforward retrofit and panel compatibility. Application: new builds and expansion projects in manufacturing and data-comms rooms.
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FAQs
This transformer is designed for three-phase 480 V primary and 208Y/120 V secondary, making it compatible with standard industrial switchgear and control panels. With copper windings and a 920E frame, it fits common rack and mounting footprints. The option to adjust taps (+2.5% and -2.5%) supports voltage regulation during commissioning and load changes, simplifying alignment with existing protection schemes.
The unit provides a 480 V primary and 208Y/120 V secondary, rated at 500 kVA (Volt-Ampere). It operates at 60 Hz with copper windings and a 150 °C rise within a 200 °C insulation system. This combination supports demanding industrial equipment, including drives and controls, while maintaining stable output under transient loads.
Yes. The transformer is UL Listed and complies with NEMA TP-1 efficiency and performance standards. It also features a low sound profile (55 dB) and electrostatic shielding, which helps meet installation and environmental requirements in noise-sensitive facilities and compliant electrical rooms.
The WS35 weather shield supports outdoor or harsh-environment installations, protecting windings from moisture and contaminants. Electrostatic shielding reduces external electrical interference. Routine checks should include visual inspection of the shield, seals, and cooling airflow, plus periodic insulation integrity tests to ensure long-term performance in challenging environments.
Ideal for manufacturing lines, HVAC and data-center ancillary power, and automation systems, this 500 kVA transformer delivers stable voltages, improved power quality, and reduced cooling loads thanks to high efficiency and low noise. The ability to tune taps and rely on UL/NEMA TP-1 compliance supports faster procurement, safer installations, and a favorable total cost of ownership over the asset’s life.