Eaton N48M28B15A Transformer - K-13 Ventilated UL Listed
Part Number: N48M28B15A
Quick Summary
The Eaton N48M28B15A Transformer is a K-Factor nonlinear transformer designed for robust three-phase distribution in industrial facilities. This unit helps utilities and OEMs manage harmonic loads without compromising voltage regulation. It carries UL Listed safety certification and supports an 80 C rise, while features like electrostatic shielding and WS38 weathershield readiness enhance reliability in harsh environments. The ventilated design with aluminum windings offers efficient cooling and space-conscious installation, making it suitable for outdoor and indoor applications. For businesses pursuing predictable performance, this transformer aligns with power distribution needs and long-term ROI in manufacturing, data centers, and heavy equipment environments.
Product Information
Extended Description
N48M28B15A 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, 15 kVA , Al windings, Elec. Shield, Frame: 912B, uses WS38
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B15A
UPC
786680370007
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
231 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
15 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 - N48M28B15A
Feature: K-Factor nonlinear design moderates harmonic impact in non-linear load conditions. Business Impact: Reduces neutral currents and improves transformer utilization, yielding lower cooling costs and improved energy efficiency. Application: Ideal for motor drives, welders, and drives-heavy manufacturing lines where harmonic loads are common. Feature: Tap settings with 2 taps at +2.5% FCAN and 4 taps at -2.5% FCBN. Business Impact: Allows precise voltage regulation to accommodate supply fluctuations without oversized equipment. Application: Utility feeders and OEM equipment racks needing tight voltage control across variable loads. Feature: Ventilated construction and aluminum windings. Business Impact: Enhanced cooling performance and lighter weight facilitate easier installation and longer service life in hot or confined spaces. Application: Outdoor switchgear enclosures and indoor plant rooms with limited airflow. Feature: Electrostatic shield and WS38 weathershield compatibility. Business Impact: Reduces electromagnetic interference and enables outdoor or rugged indoor installations with protection against weather. Application: Data centers, outdoor substations, and process plants requiring dependable protection. Feature: 80°C rise rating and 60 Hz three-phase operation. Business Impact: Supports high ambient conditions and reliable distribution for typical industrial power systems. Application: Standard industrial power distribution across mixed loads with stable performance expectations.
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FAQs
The N48M28B15A is a three-phase, ventilated transformer with a 912B frame designed for standard electrical rooms and outdoor installations when used with the WS38 weathershield. Its dimensions (approximately 16.5 in L, 30 in H, 23 in W) and weight (231 lb) enable installation on common transformer pads or in equipment racks, provided clearance for ventilation and wiring is observed.
The unit provides two taps at +2.5% FCAN and four taps at -2.5% FCBN to adjust secondary voltage and compensate for supply or load-induced voltage drift. Use the taps to maintain precise 208Y/120 V secondary output under varying input conditions, reducing voltage drop or overvoltage at critical downstream equipment.
Key specs include a 15 kVA rating, 480 V primary, 208Y/120 V secondary, 60 Hz operation, three-phase configuration, 80 °C rise, aluminum windings, and a protective electrostatic shield. It is UL Listed and designed for ventilated cooling, with a WS38 protection option for outdoor use.
Yes, the transformer is designed for rugged environments and can be used outdoors when paired with the WS38 weathershield. Its ventilated construction, 80 °C rise capability, and electrostatic shield support reliable operation under higher ambient temperatures and exposure to humidity common in industrial outdoor installations.
The N48M28B15A combines high harmonic tolerance with efficient cooling and robust safety certification, reducing downtime and energy waste. Aluminum windings lightens the unit and eases installation, while the UL Listed certification supports long-term regulatory compliance. Routine maintenance focuses on connection integrity and visual inspections; the design minimizes frequent service interventions.