Eaton N48M28B30A Transformer - UL Listed, K-13
Part Number: N48M28B30A
Quick Summary
The Eaton N48M28B30A transformer delivers reliable K-Factor nonlinear performance for three-phase power distribution in industrial settings. Engineers confront harmonic currents, thermal rise, and enclosure space constraints; this ventilated, shielded design helps manage heat and reduce electrical noise. UL Listed certification confirms safety and compliance with electrical standards for critical infrastructure. With aluminum windings, WS38 weather shield compatibility, and a compact footprint, it supports scalable installations while maintaining efficiency in data centers, manufacturing lines, and process plants.
Product Information
Extended Description
N48M28B30A Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 80°C, 30 kVA , Al windings, Elec. Shield, Frame: 912B, uses WS38
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B30A
UPC
786680370052
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
308 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
Model A
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B30A
The K-13 nonlinear core design minimizes harmonic distortion and hot spots, improving efficiency and reducing cooling load. This translates into lower maintenance costs and fewer unplanned outages in demanding industrial environments. Applications include switchgear rows, manufacturing lines, and data centers where harmonic currents are prevalent.Ventilated construction provides superior airflow at 60 Hz, which lowers winding temperatures during peak loading. The result is a stable 30 kVA output with an 80°C temperature rise rating that keeps performance consistent under demanding duty cycles.Voltage regulation is enhanced by taps: 2 at +2.5% FCAN and 4 at -2.5% FCBN, enabling precise primary-to-secondary voltage matching in installations with variable supply or load. The 912B frame fits standard enclosures, simplifying retrofits and field upgrades.An electrostatically shielded design minimizes EMI coupling to adjacent equipment and control circuits. Paired with WS38 weather shield, the unit is suitable for outdoor or harsh indoor environments, expanding installation options and protecting longevity.Aluminum windings reduce weight and material costs while maintaining conductor efficiency for 30 kVA systems. This translates to easier handling, lower installation risk, and compatibility with common mounting hardware in industrial panels.UL Listed certification confirms safety and compliance with recognized standards, supporting procurement and regulatory workflows. The Eaton N48M28B30A is designed for dependable operation across critical power distribution scenarios, with a frame 912B and a warranty aligned with Eaton's policy.
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FAQs
This unit supports a 30 kVA three-phase load with a 480 V primary and 208Y/120 V secondary. It features two taps at +2.5% and four taps at -2.5%, a 912B frame for standard enclosures, aluminum windings for lighter handling, and WS38 weather shield compatibility to fit common industrial panels and retrofit projects.
The transformer uses a K-13 nonlinear core design to minimize harmonic distortion and hot spots, improving reliability. At 60 Hz it delivers stable 30 kVA output with an 80°C rise rating, helping maintain performance during peak duty cycles in demanding environments like data centers and manufacturing lines.
Yes. The unit is electrostatically shielded and paired with WS38 weather shield, enabling outdoor use and enhanced EMI protection. The robust frame and aluminum windings also contribute to durability and easier field mounting in rugged industrial settings.
The N48M28B30A is UL Listed, ensuring safety certification and compliance with recognized electrical standards, which supports procurement decisions and regulatory requirements in industrial facilities.
With a durable ventilated design, shielded construction, and a 30 kVA rating, you can expect improved reliability and reduced cooling costs. The device’s aluminum windings and standard 912B frame simplify installation and lifecycle management, contributing to lower total cost of ownership over its service life.