Eaton N48M28B45I3CUEE Transformer - UL Listed
Part Number: N48M28B45I3CUEE
Quick Summary
The Eaton N48M28B45I3CUEE transformer delivers compact, K-factor nonlinear ventilation for three-phase power distribution in industrial facilities. It addresses heat and voltage stability challenges common to crowded switchgear and motor drives. UL Listed certification and a NEMA 2 enclosure ensure compliance and rugged protection, while NEMA TP-1 efficiency highlights energy performance. Copper windings and an 80 °C rise enable reliable operation under load, reducing maintenance and downtime. With 480 V primary and 208Y/120 V secondary, this 45 kVA unit supports scalable expansion and retrofit projects, offering additive taps for voltage regulation. The design emphasizes serviceability and installation ease, helping procurement teams achieve faster turnarounds and predictable lifecycle costs.
Product Information
Extended Description
N48M28B45I3CUEE 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, 45 kVA, 3-in window, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B45I3CUEE
UPC
786680102844
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
635 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.
Certifications
UL Listed
Catalog Notes
NEMA TP-1 efficient, 3-inch IR viewing window
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
283B
Type
Nonlinear, ventilated transformer
Frame
914D
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
80 °C rise
Special features
Electrostatically shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B45I3CUEE
Feature: K-Factor nonlinear ventilated design → Business Impact: Improved harmonic handling and reduced hotspot formation under fluctuating loads → Application: data centers, motor drives, and manufacturing lines. Feature: Tap settings with 2 at +2.5% and 4 at -2.5% → Business Impact: Precise voltage regulation to minimize equipment stress and outages → Application: plants with unstable incoming service. Feature: Copper windings and 80 °C rise → Business Impact: Higher thermal capacity and long-term reliability, lowering maintenance costs → Application: continuous process lines and energy-intensive machinery. Feature: Three-phase 45 kVA with 480 V primary and 208 Y/120 V secondary → Business Impact: Direct compatibility with standard industrial distribution and scalable deployment → Application: retrofit projects and new builds. Feature: NEMA 2 enclosure with WS39 weathershield and 3-in IR window → Business Impact: Protected operation in moderate environments with easy inspection → Application: serviceable field installations and rugged plant floors. Feature: 22 in × 29 in × 39 in footprint and copper winding construction → Business Impact: Space-efficient, retrofit-friendly installation with durable performance → Application: compact switchgear housings and equipment rooms. These elements collectively support reduced downtime, improved energy efficiency, and faster ROI for industrial power management projects.
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FAQs
Begin by confirming mounting for a 22 in by 29 in by 39 in footprint and a 635 lb weight. Use the 283B wiring connection and set the taps to the available +2.5% or -2.5% options to match system voltage. Ensure the enclosure is NEMA 2 rated and accessible for the 3-in viewing window. Follow utility and code requirements for safe installation and verify cooling and clearance around the unit.
Key specs include 60 Hz frequency, three-phase operation, 480 V primary, 208Y/120 V secondary, and an 80 °C rise rating. Copper windings deliver lower losses and better thermal management. The unit is designed for K-Factor nonlinear loads and includes voltage-tap flexibility to accommodate supply variations, supporting reliable operation in mixed harmonics environments.
Yes. The 45 kVA, three-phase configuration with a 480 V primary and 208Y/120 V secondary is common in data centers and motor drive installations. The K-Factor nonlinear design helps manage harmonic loads, while the copper windings and 80 °C rise support continuous operation. The 3-in viewing window and NEMA 2 enclosure make on-site inspection straightforward in equipment rooms and controlled environments.
This transformer is UL Listed, ensuring compliance with recognized safety standards. It features a NEMA 2 enclosure for basic ingress protection and a NEMA TP-1 efficient design emphasis. The 3-inch viewing window aids inspections without compromising protection, while the copper windings meet high-performance reliability expectations for industrial power systems.
Eaton provides a warranty aligned with policy 25-000: one year from installation or 18 months from shipment, whichever occurs first. The unit’s copper windings, robust enclosure, and reliable 80 °C rise design translate to lower maintenance and extended service life, contributing to lower total cost of ownership and faster project ROI in facilities with demanding loads.