Eaton N48M28B12LS47 K-Factor Transformer - UL Listed
Part Number: N48M28B12LS47
Quick Summary
Eaton N48M28B12LS47 K-Factor nonlinear ventilated transformer provides reliable three-phase power conditioning for industrial facilities. Engineers often grapple with harmonic distortion, heat buildup, and audible noise that erode uptime and efficiency. UL Listed safety certification anchors compliance in daily operations, while robust 80°C rise margins support demanding environments. This solution also aligns with expanding site power needs and ongoing maintenance cost control, reinforcing reliability across industrial power distribution. By choosing this transformer, procurement teams gain a scalable, code-compliant solution with predictable performance and reduced operational risk. Its compatibility with 480 V to 208Y/120 V distribution and 60 Hz operation makes it a straightforward fit for retrofit projects and new builds alike.
Product Information
Extended Description
N48M28B12LS47 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, 112.5 kVA , Al windings, Elec. Shield, Frame: 918A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B12LS47
UPC
786680025280
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1545 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
918A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
112.5 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
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B12LS47
Feature: K-Factor nonlinear ventilated design reduces harmonic stress and improves reliability under non-linear loads. Benefit: Minimizes heat generation and extends asset life, lowering maintenance costs. Application: critical machine controls and drives in manufacturing lines where power quality matters. Feature: 112.5 kVA three-phase rating with 480 V primary and 208Y/120 V secondary. Benefit: simplifies distribution topology while delivering stable, controllable voltages for mixed loads. Application: industrial facilities, data centers, and large control panels requiring dependable step-down power. Feature: Tap changes with 2 at +2.5% and 4 at -2.5% to adjust output. Benefit: improves voltage regulation under fluctuating supply and loading conditions, reducing equipment misoperation. Application: retrofit and new-build projects in regions with variable utility voltages. Feature: Aluminum windings and electrostatic shield. Benefit: cost-effective, corrosion-resistant construction with EMI suppression for cleaner power and safer operation. Application: outdoor or shielded installations where EMI concerns are present. Feature: Low noise performance at 47 dB and frame 918A with Weathershield WS34. Benefit: quieter operation and durable weather protection enable siting in noise-sensitive or outdoor environments. Application: manufacturing floors near offices, external plant rooms, and exposed outdoor sites. Feature: UL Listed certification with warranty support. Benefit: safety assurance and predictable service terms reduce procurement risk and simplify vendor management. Application: compliance-driven projects and routine maintenance planning.
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FAQs
The N48M28B12LS47 is a three-phase transformer with a 480 V primary and 208Y/120 V secondary, designed around the 918A frame. Its taps (+2.5% and -2.5%) help fine-tune output to maintain voltage under fluctuating loads. Installers should ensure adequate clearance per the 30.68 in depth, 62.18 in height, and 31.44 in width, with proper mounting to support its 1545 lb weight.
Key specs include a 112.5 kVA rating, 60 Hz operation, primary 480 V, secondary 208Y/120 V, and an 80 °C rise. Aluminum windings with an electrostatic shield reduce EMI, while a low-noise profile (47 dB) supports siting in noise-sensitive areas. Weathershield WS34 extends outdoor viability, and UL Listed certification confirms safety compliance.
Yes. The N48M28B12LS47 features Weathershield WS34 and a robust ventilated design, making it appropriate for outdoor or harsh-environment installations. The 80 °C rise rating supports sustained loads, while the electrostatic shield helps minimize EMI exposure in exposed settings.
The transformer is UL Listed, providing an established safety certification for electrical equipment. While CE or IP ratings are not listed in the data, the UL certification supports compliance for industrial safety programs, and the low-noise, shielded design aligns with typical regulatory expectations for electrical equipment in industrial environments.
The N48M28B12LS47 offers a long service life with a solid warranty (one year from installation or 18 months from shipment) and rugged build with aluminum windings and protective shielding. Benefits include reduced downtime from harmonics, lower cooling loads due to efficient design, and predictable maintenance costs, contributing to a favorable total cost of ownership in medium-to-large power-distribution applications.