Eaton N48M28B49CUEELS45 Transformers - UL Listed
Part Number: N48M28B49CUEELS45
Quick Summary
Eaton N48M28B49CUEELS45 nonlinear ventilated transformer delivers optimized voltage conditioning for 480V primary and 208Y/120V secondary in three-phase power systems. Facility downtime and energy waste are common pain points; this transformer targets heat, noise, and undervoltage events that derail production. UL Listed, NEMA TP-1 compliant, and rated for an 80°C rise, these certifications ensure safety, reliability, and regulatory readiness in critical installations. Designed for power management and distribution, it leverages copper windings and a robust frame to support long service life and straightforward maintenance across industrial sites, delivering predictable regulation, quick installation, and reduced total cost of ownership through reliable performance across industrial sites.
Product Information
Extended Description
N48M28B49CUEELS45 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, 150 kVA, Copper windings, EE, LS45
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B49CUEELS45
UPC
786680057052
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
2298 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
918A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
150 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
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B49CUEELS45
Feature → Business Impact → Application: The nonlinear K-Factor design improves harmonic handling, reducing overheating and extending transformer life, which translates to fewer unplanned outages in data centers and heavy manufacturing lines. This means more uptime and lower maintenance costs, especially in facilities with non-linear loads and high kva requirements. Application is optimized for three-phase power distribution with 480 V input to 208Y/120 V output, improving voltage stability where critical sensors and controls rely on clean waveform power. Feature → Business Impact → Application: Ventilated cooling enables superior heat dissipation, lowering thermal stress and enabling sustained load operations; this supports longer service intervals and improved reliability in continuous-process environments. Application includes industrial plants with significant ambient temperatures and tight temperature rise budgets. Feature → Business Impact → Application: Copper windings provide higher conductivity and durability, reducing energy losses and improving thermal performance, which strengthens overall system efficiency and helps meet stricter efficiency standards. Application spans data centers, automation halls, and process plants requiring consistent power conditioning. Feature → Business Impact → Application: Tap adjustments (+2.5% FCAN, -2.5% FCBN) allow precise voltage regulation to accommodate site fluctuations, minimizing voltage-related equipment degradation and improving control accuracy. Application includes sites with varied utility feeds or long feeders feeding critical loads. Feature → Business Impact → Application: Compliance with UL Listed and NEMA TP-1, along with a low acoustic profile (45 dB) and an 80°C rise rating, supports regulatory procurement and suitable installation in noise-sensitive areas such as control rooms and adjacent workspaces. Application includes hospitals, laboratories, and clean-room-adjacent facilities where audible noise must be minimized. Feature → Business Impact → Application: The 918A frame and copper windings enable straightforward installation in existing footprints, reducing site modification costs and enabling rapid deployment across multiple facilities, from manufacturing floors to data center enclosures. Application includes retrofits and new builds with standardized mounting practices and space constraints.
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FAQs
The N48M28B49CUEELS45 uses a 918A frame and is designed for floor or rack mounting in standard electrical enclosures. Key physicals are 30.68 in L, 31.44 in W, and 62.18 in H with a weight of 2298 lb. Plan for adequate clearance, proper ambient cooling, shielded terminations, and compatible compartment dimensions. Review terminal layout and tapping options in the Eaton catalog and datasheet for exact connection schemes.
Core ratings include a 150 kVA three-phase transformer with a 480 V primary and 208Y/120 V secondary operating at 60 Hz. The K-Factor nonlinear design helps mitigate harmonics from non-linear loads, reducing overheating and voltage distortion. Copper windings provide high conductivity and durability, while the 80°C rise rating supports sustained operation under heavy load conditions.
Yes, it is well-suited for data centers and manufacturing floors that require stable voltage, controlled noise, and reliable power conditioning. The unit’s low acoustic profile (45 dB), UL Listed certification, and NEMA TP-1 efficiency make it compliant for sensitive environments, while the 480 V to 208Y/120 V outputs support typical IT and industrial control voltages.
The N48M28B49CUEELS45 is UL Listed and NEMA TP-1 compliant, with an 80°C rise rating. These certifications simplify procurement by ensuring safety, regulatory compliance, and expected performance in standard industrial installations. The 45 dB low-noise level further supports use in noise-constrained spaces, reducing potential facility-wide constraints.
With copper windings and a robust 918A frame, maintenance needs are typically limited to routine visual inspections, connection checks, and periodic thermal monitoring. The transformer’s efficiency and harmonic management reduce energy waste and downtime, contributing to a favorable total cost of ownership (TCO) and a quicker return on investment, especially in facilities with non-linear loads and high-duty cycles.