Eaton N48M28B75LS47 K-Factor Transformer UL Listed
Part Number: N48M28B75LS47
Quick Summary
The Eaton N48M28B75LS47 K-Factor nonlinear ventilated transformer is a three-phase power conditioning solution designed for industrial panels and distribution. It helps engineers manage harmonic distortion and thermal loads while delivering reliable secondary voltages for sensitive equipment. UL Listed certification reinforces safety compliance, with electrostatic shielding and a data-driven thermal profile supporting demanding environments. While some installations struggle with noise, heat, and space constraints, this model offers a compact footprint and quiet operation that simplify panel integration. By combining a robust 75 kVA rating with adjustable taps and a shielded design, it delivers measurable business value through improved reliability, reduced cooling needs, and streamlined maintenance for medium- to high-demand facilities.
Product Information
Extended Description
N48M28B75LS47 Eaton: K-Factor nonlinear ventilated transformer K-13, Three-phase, PV: 480V, Taps: 2 at 0.025 FCAN, 4 at -0.025 FCBN, SV: 208Y/120V, 80°C, 75 kVA , Al windings, Elec. Shield, Frame: 916A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B75LS47
UPC
786680026461
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
796 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
Low sound equal to 47 dB
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
75 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Modification 1
Low sound 47 dB
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B75LS47
Feature: K-Factor nonlinear design reduces harmonic interaction and coolant stress → Business Impact: lowers thermal buildup and extends transformer life, reducing maintenance costs and downtime → Application: ideal for harmonic-rich loads like motor drives and PV interfaces in industrial plants. Feature: Three-phase 75 kVA rating with 480 V primary and 208Y/120 V secondary → Business Impact: scalable power distribution for mid-size panels, enabling safer, consistent delivery to subcircuits and equipment → Application: distribution bus in manufacturing lines and control rooms. Feature: Aluminum windings with electrostatic shield → Business Impact: improved thermal conductivity and reduced EMI, increasing reliability and protecting sensitive electronics → Application: clean power delivery in automated systems and robotics. Feature: Frame 916A with 23.42 in length, 28.22 in width, 48.56 in height, weight 796 lb → Business Impact: straightforward mounting in standard enclosures and retrofit projects, minimizing installation time and space planning → Application: retrofit of aging transformers in existing dashboards and switchgear. Feature: Tap changes at 2 at +2.5% FCAN, 4 at -2.5% FCBN and low sound 47 dB → Business Impact: flexible voltage matching and quiet operation, improving workplace comfort and compliance with noise restrictions → Application: panel upgrades in noise-sensitive manufacturing environments. Feature: 60 Hz operation, UL Listed certification, and optional WS19 weathershield compatibility → Business Impact: safe, reliable performance in typical North American utilities and environments with protective coating choices → Application: new builds and refurbishments requiring certified components and weather resilience.
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FAQs
The N48M28B75LS47 is a three-phase transformer rated for 75 kVA with a 480 V primary and 208Y/120 V secondary, operating at 60 Hz. Its aluminum windings and electrostatic shield support efficient, clean power transfer, making it well-suited for standard distribution in industrial facilities and equipment quads. It easily integrates with typical panelboards, panels, and switchgear without requiring extensive field conversion, provided the enclosure and mounting footprint align with the 23.42 x 28.22 x 48.56 inch frame and 796 lb weight.
The K-Factor nonlinear design targets harmonic currents to minimize heat and magnetic stress on windings, where nonlinear loads are common. This translates to improved transformer life, reduced cooling requirements, and better overall power quality for drives and PV interfaces. In practice, facilities can experience fewer nuisance trips, more stable voltages, and lower maintenance costs while maintaining compliance with safety standards.
Plan for a footprint of roughly 23.42 in by 28.22 in with a height of 48.56 in and a weight near 796 lb. The ventilated design and low noise rating of 47 dB help with enclosure cooling and workspace comfort. Ensure adequate clearance for airflow and service access, verify enclosure compatibility with the electrostatic shield, and confirm TAP settings for voltage adjustment to match site requirements.
Yes. The N48M28B75LS47 is UL Listed, confirming compliance with safety standards for electrical equipment. The device is designed for 60 Hz operation with a temperature rise of 80 °C, and it includes an electrostatic shield for EMI control. While other certifications (CE, IP) are not specified in the provided data, the UL listing provides a strong safety framework for North American installations.
Investing in the N48M28B75LS47 can yield ROI through reduced harmonic losses, improved reliability, and quieter operation. The 75 kVA rating supports scalable load growth, while the shield and aluminum windings lower EMI and cooling needs. The low noise level and mounting compatibility shorten commissioning time, reducing labor costs. Warranty coverage (one year from installation or 18 months from shipment) adds risk protection during early operation.