Eaton N48M28T15LS42 K-Factor Nonlinear Transformer UL
Part Number: N48M28T15LS42
Quick Summary
N48M28T15LS42 is a K-factor nonlinear ventilated transformer designed for three-phase power systems in industrial facilities. Engineers often wrestle with noise, efficiency, and precise voltage regulation when matching transformers to variable loads. UL Listed certification underpins safety and reliability for retrofit projects and new builds. This solution supports energy-efficient power management in manufacturing lines, offering adjustable taps for FCAN/FCBN settings and shielding that reduces EMI, while aluminum windings balance durability with weight. The design also favors seamless integration in panel boards and compatibility with WS38 weather shields for outdoor or rugged environments, helping procurement align quality with project timelines.
Product Information
Extended Description
N48M28T15LS42 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, 150°C, 15 kVA , Al windings, Elec. Shield, Frame: 912B, uses WS38
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T15LS42
UPC
786680025600
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
243 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 42 dB
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
150 °C rise
Modification 1
Low sound 42 dB
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T15LS42
Feature K-Factor nonlinear design with ventilated cooling → Business Impact Improves tolerance to nonlinear loads and enhances cooling efficiency, translating to greater reliability in variable industrial loads. Application Ideal for data centers, motor drives, and process controls where stable voltage under dynamic loading is critical. The transformer supports energy savings and reduced maintenance due to efficient heat management. Feature 15 kVA rating with 480 V primary and 208Y/120 V secondary → Business Impact Enables compact, scalable power distribution for mid-sized automation panels, reducing panel size and wiring complexity. Application Suitable for PLC cabinets, CNC machines, and factory automation zones. Feature Tap changes of 2 at +2.5% and 4 at -2.5% → Business Impact Allows precise voltage regulation to maintain accuracy in precision equipment and sensitive controls. Application Use in legacy and new installations requiring tight voltage control. Feature Aluminum windings with electrostatic shield → Business Impact Improves durability and EMI suppression, lowering interference with nearby electronics. Application Critical for automation panels in noisy industrial environments. Feature Frame 912B with WS38 weather shield and low sound 42 dB → Business Impact Supports compliance with space constraints and noise regulations while enabling outdoor or harsh environments. Application Suitable for outdoor switchgear or exposed installations. Feature 150 °C rise rating → Business Impact Supports higher operating temperatures, extending service life under heavy loads. Application Useful in high-ambient-temperature facilities and densely loaded panels.
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FAQs
When installing the N48M28T15LS42, verify panel space for a 912B frame, provide clearances for ventilation, and connect the 480 V delta/line inputs to the primary terminals with proper torque per Eaton guidelines. Use the WS38 weather shield where outdoor or harsh environments are encountered, and set taps to ±2.5% as needed to maintain 208Y/120 V secondary voltage within tolerance.
Key specs include a 15 kVA rating, 60 Hz operating frequency, three-phase configuration, 480 V primary, 208Y/120 V secondary, aluminum windings, 150 °C rise, and taps of 2 at +2.5% FCAN and 4 at -2.5% FCBN. The unit uses electrostatic shielding and delivers low noise (approximately 42 dB) for controlled environments.
Yes. The N48M28T15LS42 is designed for reliable three-phase power distribution in automation panels, with stable secondary voltage, EMI shielding, and a compact 912B frame. Its adjustable taps help maintain accurate voltages across dynamic loads typical of PLCs and CNC equipment, while aluminum windings offer durability in factory settings.
The transformer is UL Listed, reflecting compliance with essential electrical safety standards important for both retrofit and new installations. This certification supports safety, reliability, and easier procurement through recognized industry compliance, which is critical for industrial facilities and panel shop approvals.
With a robust K-Factor nonlinear design, high-temperature rise tolerance, and EMI shielding, maintenance requirements are reduced due to improved reliability and fewer voltage-related disturbances. The 15 kVA rating and low-noise operation support higher uptime in automated lines, delivering a favorable total cost of ownership and faster project ROI for mid-to-large scale facilities.