Eaton N48M28F49LS45 K-Factor Transformer - UL Listed
Part Number: N48M28F49LS45
Quick Summary
Eaton N48M28F49LS45 K-Factor nonlinear ventilated transformer provides robust power conditioning for critical industrial loads in data centers and manufacturing lines. Operators struggle with harmonics, heat buildup, and downtime when transformers aren’t rated for nonlinear K-factor performance. This unit carries UL Listed safety certification and features a 150 kVA rating with a 480 V primary and 208Y/120 V secondary, delivering reliable operation under demanding conditions. The 115°C rise and electrostatic shielding support compliance, EMI control, and long-term reliability, while WS34 protection expands outdoor applicability. For turnkey projects, its ventilation design, aluminum windings, and precise taps help reduce lifecycle cost and simplify procurement within power management and distribution environments.
Product Information
Extended Description
N48M28F49LS45 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, 115°C, 150 kVA , Al windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F49LS45
UPC
786680025334
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1444 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 45 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
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °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 - N48M28F49LS45
Feature → Business Impact → Application: The N48M28F49LS45 utilizes a K-Factor nonlinear ventilated design to mitigate harmonic currents, reducing overheating risk and extending transformer life in systems with non-linear loads. This translates to lower maintenance costs and fewer unexpected outages in data centers, machine shops, and processing plants. Feature → Business Impact → Application: With a 150 kVA three-phase rating and a 480 V primary to 208Y/120 V secondary configuration, it supports multiple distribution panels from a single source, enabling flexible load distribution and smoother panel loading in mid-size manufacturing lines. Feature → Business Impact → Application: Tap changers offering +2.5% and -2.5% regulation (2 at FCAN, 4 at FCBN) maintain voltage stability during load swings, improving equipment performance and reducing the risk of undervoltage or overvoltage events in automation cells. Feature → Business Impact → Application: Aluminum windings lower material cost while maintaining conductivity, helping OEMs and integrators meet budget targets without sacrificing electrical performance in retrofit projects. Feature → Business Impact → Application: Electrostatic shielding and the built-in electrostatic shield reduce EMI and cross-talk, supporting compliance with modern electrical noise requirements in sensitive facilities such as clean rooms and control rooms. Feature → Business Impact → Application: Low sound level (catalog note: 45 dB) minimizes acoustic impact in plant floors and customer-facing installations, enabling closer equipment placement and denser layouts. Feature → Business Impact → Application: WS34 Weathershield enables outdoor or harsh-environment installations, reducing enclosure needs and simplifying site preparation on outdoor substations or exterior transformer banks. Feature → Business Impact → Application: The 918A frame, dimension data, and weight considerations support safe handling and installation planning, making crane-ready integration easier for both new builds and upgrades. Feature → Business Impact → Application: UL Listed certification affirms safety compliance, aiding procurement and commissioning in regulated facilities and providing confidence for QA checks and vendor approvals.
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FAQs
The N48M28F49LS45 is designed for three-phase 480 V input with a 208Y/120 V secondary, making it compatible with common industrial distribution schemes. Its 150 kVA rating supports multiple downstream panels, and its frame 918A footprint aligns with standard install practices. Plan for crane-ready placement due to weight, and consider WS34 for outdoor or rugged installations.
K-Factor nonlinear ventilation is engineered to manage harmonic currents, reducing overheating and extending transformer life under non-linear load conditions. This improves reliability for drives, CNC equipment, and other equipment drawing distorted loads, while maintaining stable temperatures and reducing maintenance intervals.
Yes. With a 150 kVA rating, 480 V primary, 208Y/120 V secondary, and low-noise operation, it suits data centers and automation floors that demand reliable voltage regulation and EMI control. The electrostatic shield and WEathershield option enhance performance in controlled environments and outdoor-adjacent installations.
This model is UL Listed, ensuring compliance with recognized safety standards for electrical equipment. UL Listing supports procurement approvals, reduces vendor risk, and helps meet internal and regulatory safety requirements in industrial facilities.
Plan for crane-ready handling due to a 1444 lb weight, ensure adequate ventilation, and account for 60 Hz operation. The device supports voltage taps for regulation, shielded construction for EMI control, and a 115°C rise rating to manage thermal loads. Commissioning should include verification of UL compliance and warranty terms.