Eaton N48M28T75CUEELS45 Transformer - NEMA TP-1
Part Number: N48M28T75CUEELS45
Quick Summary
Eaton N48M28T75CUEELS45 transformer is a K-Factor nonlinear ventilated transformer for three-phase power distribution in industrial facilities. Engineers often struggle with heat, noise, and harmonic distortion that can impact uptime and equipment life. This unit is NEMA TP-1 compliant and UL Listed, with low-noise performance at 45 dB, supporting quiet, compliant operation in sensitive environments. The combination of copper windings, a 75 kVA rating, and a robust frame enables reliable service in demanding installations. By combining advanced cooling with precise voltage taps and rugged build, it delivers efficiency and resilience that translate to reduced maintenance costs and improved system availability for critical loads.
Product Information
Extended Description
N48M28T75CUEELS45 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, 75 kVA, Copper windings, EE, LS45
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T75CUEELS45
UPC
786680080623
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
825 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
150 °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 - N48M28T75CUEELS45
Feature → Business Impact → Application: The N48M28T75CUEELS45 uses K-Factor nonlinear design to mitigate harmonic currents, reducing overheating and extending transformer life—benefit realized as lower cooling energy and longer intervals between maintenance, ideal for harmonics-prone loads in manufacturing lines. Feature → Copper windings and 150 °C rise insulation system deliver high conductivity and thermal tolerance, enabling sustained performance in hot plants and demanding duty cycles, supporting continuous operation for CNC machines and presses. Feature → 2 at +2.5% / 4 at -2.5% voltage taps offers flexible voltage regulation, allowing precise bus voltage alignment in facilities with fluctuating supply, reducing equipment stress and protecting sensitive controls. Feature → Three-phase 75 kVA rating with 480 V primary and 208Y/120 V secondary supports scalable power for substations and control rooms, ensuring compatibility with standard plant distributions. Feature → Low sound 45 dB and NEMA TP-1 efficiency improve site compliance and neighbor-friendly operation, enabling outdoor siting using WS19 weather shield options for outdoor or semi-enclosed installations. Feature → Compact frame 916A and 825 lb weight improve installability in constrained spaces, simplifying mounting, clearances, and maintenance access, while the copper windings and electrostatic shielding provide reliability in harsh environments. The combination of these attributes supports fast commissioning, predictable performance, and a solid return on investment through energy efficiency, durability, and reduced downtime.
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FAQs
For proper installation, locate the unit on a solid, level base with adequate ventilation. Ensure access for maintenance, observe clearances per enclosure standards, and use the WS19 weather shield when mounting outdoors. The transformer supports 480 V primary and 208Y/120 V secondary with taps at +2.5% and -2.5%, and it weighs 825 lb with dimensions of 28.22 in wide by 48.56 in high and 23.42 in deep.
The K-Factor nonlinear design reduces harmonic currents by shaping the transformer’s impedance to mitigate distortion. This minimizes overheating, improves regulation under non-linear load conditions, and lowers total harmonic distortion on downstream equipment, leading to better protection for drives, PLCs, and other sensitive loads in manufacturing lines.
Yes. The N48M28T75CUEELS45 is UL Listed and NEMA TP-1 compliant, with a NEMA-efficient, low-noise profile of 45 dB. These certifications support regulatory acceptance, safer operation, and reduced acoustic impact in controlled environments and near occupied spaces.
Common applications include data centers, machine rooms, and industrial plants with harmonic loads and critical control circuits. ROI is driven by energy efficiency, reduced cooling costs from better thermal performance, and minimized downtime due to robust construction, copper windings, and enhanced reliability under peak loads.
The unit carries Eaton’s warranty policy 25-000, offering one year from installation or 18 months from shipment, whichever occurs first. Routine maintenance focuses on inspecting cooling vents, taps, and insulation integrity, with attention to cleanliness, secure mounting, and verification of voltage tap settings.