Eaton N48M28F45 - K-Factor nonlinear ventilated transformer, UL Listed
Part Number: N48M28F45
Quick Summary
N48M28F45 is a K-Factor nonlinear ventilated transformer designed for three-phase power distribution in harmonics-heavy industrial environments. For engineers wrestling with voltage distortion, this unit delivers consistent regulation and enhanced equipment protection by mitigating peak harmonic currents. It carries UL Listed certification and includes an electrostatic shield and weather protection to withstand demanding installations. With a 480 V primary and 208Y/120 V secondary, aluminum windings, and a 914D frame, it integrates smoothly into existing electrical rooms and control panels, offering reliable performance, reduced insulation stress, and lower maintenance costs over its life cycle.
Product Information
Extended Description
N48M28F45 Eaton: K-Factor nonlinear ventilated transformer K-13, Three-phase, Taps: 2 at 0.025 FCAN, 4 at -0.025 FCBN, SV: 208Y/120V, 115°C, 45 kVA, Al windings, Elec. Shield, Frame: 914D
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F45
UPC
786680036415
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
514 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
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
914D
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F45
Feature → Business Impact → Application: K-13 nonlinear ventilated design targets harmonic currents, improving voltage regulation and reducing insulation stress, which translates to longer transformer and connected equipment life in data centers and manufacturing lines. Feature → Application: 480 V primary and 208Y/120 V secondary provide native compatibility with common industrial power systems, enabling straightforward panel integration and minimizing conversion losses in automation plants. Feature → Business Impact → Application: Aluminum windings lower weight and thermal mass compared with copper variants while maintaining robust performance, supporting easier installation in retrofit projects and replacements in space-constrained electrical rooms. Feature → Application: An electrostatic shield and WS39 weather shield enhance EMI suppression and environmental resilience, increasing uptime in harsh factory floors and outdoor installations. Feature → Business Impact → Application: Tap settings (2 at +2.5% FCAN, 4 at -2.5% FCBN) enable precise voltage regulation under fluctuating loads, reducing equipment misoperation in programmable logic controllers and motor drives. Feature → Application: Three-phase, 60 Hz operation with UL Listed compliance ensures safe, standardized installation in commercial and light industrial facilities, complementing Eaton’s transformer ecosystem and service support.
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FAQs
For a safe, compliant install, mount the transformer on a solid, level foundation and provide proper ventilation. The unit is a three-phase 480 V input with a 208Y/120 V secondary and sits in a 22 in by 29 in by 39 in footprint, weighing approximately 514 lb. Ensure adequate clearance, enclosure suitability, and compatibility with the 914D frame and WS39 weather shield for outdoor or harsh environments.
N48M28F45 employs a K-Factor nonlinear design (K-13) to attenuate harmonic currents, reducing peak distortion and insulation stress. This translates into improved equipment protection, longer asset life, and lower maintenance frequency for critical loads such as CNC machines, presses, and high-availability control cabinets in manufacturing and data-center installations.
The transformer features a 480 V three-phase primary and a 208Y/120 V secondary. This configuration supports common industrial power architectures, enabling direct integration with standard motor drives, PLC panels, and distribution equipment while maintaining efficient voltage regulation across mixed loads.
N48M28F45 carries UL Listed certification, confirming compliance with safety and performance standards for electrical equipment. Warranty terms follow Eaton policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, providing short-term protection and support for commissioning teams.
Plan for a footprint of 22 in (depth) by 29 in (width) by 39 in (height) with an approximate weight of 514 lb. The unit’s 914D frame and weather shield WS39 facilitate stable mounting in floor-mounted or pad-mounted installations and offer outdoor suitability with appropriate enclosure protections in harsh environments.