Eaton N48M47T75A Transformer - UL Listed Nonlinear K-13
Part Number: N48M47T75A
Quick Summary
An Eaton N48M47T75A transformer delivers three-phase power conditioning for industrial distribution systems. In facilities with variable loads, voltage swings and overheating can throttle equipment life and productivity. This UL Listed unit features a K-13 nonlinear design with a ventilated 915D frame to help maintain voltage stability while dissipating heat under peak demand. Built for robust operation in both indoor and outdoor environments, it uses aluminum windings and a WS39 weather shield to resist harsh conditions. For procurement teams, this means improved reliability, easier maintenance, and a solid basis for safety compliance while supporting energy-efficient power management.
Product Information
Extended Description
N48M47T75A 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: 480Y/277V, 150°C, 75 kVA , Al windings, Elec. Shield, Frame: 915D, uses WS39
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47T75A
UPC
786680014987
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
600 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
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
480Y/277 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47T75A
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear transformer design in a three-phase, 75 kVA package. Benefit: Enhanced voltage regulation under nonlinear loads and reduced stray loss, which translates to improved equipment uptime and lower maintenance costs in manufacturing lines and drive-intensive applications. Application: Data centers, PM and distribution panels, and automated robotic cells benefit from stable output and cooler operation. Feature: Ventilated 915D frame with a 150 °C rise rating and WS39 weather shield. Benefit: Superior heat dissipation and outdoor-capable installation, enabling longer service life in hot environments and on factory floors close to heat sources. Application: Outdoor switchgear rooms and open-plan facilities where ambient temperatures challenge HVAC budgets. Feature: Multiple taps 2 at +2.5% FCAN and 4 at -2.5% FCBN. Benefit: Precise voltage adjustments to accommodate nominal voltages and load swings, reducing outages and protecting downstream equipment. Application: Critical control panels and motor drives in production lines with fluctuating input.Feature: Aluminum windings with electrostatic shielding. Benefit: Lower weight, good conductivity, and EMI/EMC shielding to minimize interference with nearby controls and instrumentation. Application: Sensitive automation environments and installations near communication networks. Feature: WS39 weather shield and UL Listed certification. Benefit: Ready-to-install protection against dust, moisture, and environmental contaminants, with safety compliance for industrial installations. Application: Both indoor substations and outdoor transformer enclosures in manufacturing and distribution facilities. Feature: 60 Hz operation with a 75 kVA rating and 480 V primary / 480Y/277 V secondary. Benefit: Predictable performance in standard utility environments, supporting reliable motor starting and load sharing for critical processes. Application: Heavy machinery, packaging lines, and process automation where stable power quality matters.
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FAQs
Yes. The unit is specified for 480 V primary and 480Y/277 V secondary in a three-phase configuration operating at 60 Hz. With a 75 kVA rating and a 915D frame, it integrates with standard motor control centers and power distribution panels while allowing taps for minor voltage adjustments. Ensure mounting clearance and ventilation per the WS39 shielded design for reliable operation.
K-Factor nonlinear design accounts for higher-order harmonics from nonlinear loads like drives and variable-speed equipment. It reduces transformer overheating by allocating loss differently under harmonic conditions, improving life and efficiency. This makes the N48M47T75A a better fit for automation lines and data-center-critical loads that experience distorted waveforms.
Industries with heavy automation, motor drives, and mixed loads—such as manufacturing, packaging, and data centers—benefit from stable voltage delivery and heat management. The 480 V to 480Y/277 V secondary configuration supports control panels and VFDs, while the ventilated frame and shielded construction reduce EMI concerns in dense equipment environments.
UL Listed certification confirms electrical safety compliance for industrial installations, facilitating safer field deployment and supplier qualification. This transformer also carries a factory warranty and Eaton’s policy guidance. For installation, verify enclosure rating, wiring method, and local electrical codes to ensure full compliance and support from Eaton’s technical resources.
Warranty terms specify one year from installation or eighteen months from shipment, whichever comes first, per Eaton's Selling Policy 25-000. This reduces long-term risk and maintenance costs, contributing to a lower total cost of ownership in capital-intensive facilities. Pair the warranty with ongoing preventative maintenance and scheduled transformer testing to maximize uptime.