Eaton N48M28F75CU Transformer - UL Listed K-Factor
Part Number: N48M28F75CU
Quick Summary
Eaton N48M28F75CU transformer provides K-Factor nonlinear protection for three-phase power distribution in industrial facilities. Operators often struggle with heat buildup and insulation stress under harmonic loads, which can reduce efficiency and shorten asset life. UL Listed safety certification accompanies robust performance with 60 Hz operation and a 115°C rise, while copper windings deliver reliable conductivity. For project teams, this ventilated, shielded transformer supports scalable power distribution and easy integration with existing copper-windings equipment, helping facilities meet reliability targets and maintain uptime. Its rugged frame and WS39 weather shield option expand installation options across indoor and outdoor environments, delivering real business value through consistent performance.
Product Information
Extended Description
N48M28F75CU 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, 75 kVA , Cu windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F75CU
UPC
786680371158
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
737 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
Copper
Type
Ventilated transformer
Design
K-13
Frame
915D
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
115 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F75CU
Selling Policy 25-000 - Distribution and Control Products and Services
K-Factor nonlinear ventilated design reduces temperature rise under harmonic loads, improving efficiency and extending transformer life. In practice, data centers and manufacturing plants see lower cooling costs and improved reliability. Copper windings with an electrostatic shield enhance conductivity and EMI suppression, reducing voltage spikes and protecting downstream equipment from interference. The unit provides taps with 2 at +2.5% and 4 at -2.5% for FCAN/FCBN, enabling precise voltage regulation to compensate line drop and sag during peak demand, simplifying commissioning and reducing field rewiring. Weathershield WS39 and a 915D frame support outdoor installation and harsh environments, meeting safety and IP considerations while maintaining easy service access. With UL Listed certification and a 75 kVA three-phase rating at 480 V/208Y-120 V, it integrates smoothly into Eaton’s transformer catalog for dependable uptime and long-term ownership.
Get a Quick Quote for a Eaton N48M28F75CU
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton N48M28F75CU?
Enquire Now
FAQs
The N48M28F75CU is a three-phase, 75 kVA transformer designed for industrial and commercial power distribution at 480 V primary and 208Y/120 V secondary. Its ventilated construction and WS39 weather shield option support indoor and outdoor installations, including data centers, manufacturing floors, and utility rooms. Consider mounting clearance, ventilation, and accessibility for taps during installation.
Primary voltage is 480 V with a secondary of 208Y/120 V. This configuration supports typical three-phase distribution in facilities while offering voltage-tap flexibility (+2.5% and -2.5% ratings) to compensate for line drops and sag, ensuring stable downstream equipment operation.
The K-Factor nonlinear design helps manage heat and harmonic loading, reducing temperature rise and insulating stress. This improves efficiency, extends transformer life, and supports reliable operation in facilities with nonlinear loads such as VFDs, drives, and power supplies, while maintaining compliance with safety standards.
The N48M28F75CU is UL Listed, indicating compliance with recognized safety requirements for electrical equipment. The design also supports 60 Hz operation and a 115°C rise, contributing to predictable performance under standard industrial conditions and aiding in regulatory alignment for facility commissioning.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever comes first. Regular inspection of cooling paths, insulation, and connections is recommended, along with periodic torque checks on terminal connections. Utilizing the WS39 weather shield and a proper mounting strategy helps minimize maintenance in outdoor or harsh environments.