Eaton N48M28T75CU Transformer - UL Listed K-13
Part Number: N48M28T75CU
Quick Summary
Eaton N48M28T75CU transformer is a K‑Factor nonlinear ventilated transformer engineered for reliable power conditioning in data centers and industrial facilities. Fitting the right transformer to complex loads can be challenging, risking outages and harmonic-related equipment stress. UL Listed safety certification supports code compliance, while copper windings and an electrostatic shield help reduce EMI and heat buildup in demanding environments. This solution improves reliability, supports scalable power distribution, and aligns with maintenance and procurement priorities, delivering strong business value for automation projects, manufacturing floors, and critical infrastructure.
Product Information
Extended Description
N48M28T75CU 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, 150°C, 75 kVA , Cu windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T75CU
UPC
786680105333
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
739 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
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T75CU
Feature → Business Impact → Application: The N48M28T75CU uses a K-Factor nonlinear ventilated design to tolerate harmonic currents, reducing stress on downstream equipment and improving uptime in data centers and automated facilities. Benefit: Enhanced reliability translates to lower maintenance costs and fewer unplanned outages. Application: Ideal for critical loads and mixed-use automation architectures where harmonic management is essential. Feature → Business Impact → Application: Copper windings with electrostatic shielding deliver lower resistive losses and EMI suppression, improving overall system efficiency and protection for sensitive controls. Application: Suitable for control panels, PLC racks, and motor drives in high-density automation lines. Feature → Business Impact → Application: 480 V primary and 208Y/120 V secondary, plus taps at +2.5% and -2.5%, enable precise voltage regulation and quick adaptation to supply fluctuations. Application: Facility distribution with variable bus voltage or retrofit scenarios. Feature → Business Impact → Application: Three-phase, 75 kVA rating with a robust frame (915D) and a 150°C rise rating supports rugged environments and outdoor or semi-outdoor installations. Application: Plant floors, substations, and outdoor electrical rooms. Feature → Business Impact → Application: Weathershield WS39 and UL Listed certification provide weather resistance and safety compliance, reducing procurement and installation risk. Application: Outdoor or harsh environments and projects requiring formal safety accreditation. The result is a durable, compliant transformer that minimizes downtime, simplifies maintenance planning, and supports scalable power conditioning in industrial automation settings.
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FAQs
This unit is a three-phase 75 kVA transformer with a 22 in depth, 29 in width, and 39 in height, weighing 739 lb. Plan for a level concrete pad or vibration-free mounting, forklift access for placement, proper clearance for ventilation, and appropriate enclosure or indoor mounting if not used with the WS39 weather shield. Ensure primary distribution is compatible with 480 V and secondary loads are configured for 208Y/120 V, and verify access to the 2 at +2.5% FCAN and 4 at -2.5% FCBN tap settings during commissioning.
The transformer features K-Factor nonlinear design (K-13) and copper windings with electrostatic shielding, which together reduce harmonic currents and EMI. This lowers thermal stress on upstream equipment, improves power quality for sensitive drives and controllers, and minimizes nuisance tripping or protection wear. Use where harmonic-rich loads are present, such as motor drives, inverters, and PLC-powered automation lines.
Yes, the N48M28T75CU supports outdoor or harsh environments when paired with its WS39 weather shield. It is UL Listed and designed for robust operation, with a 150 °C rise rating that helps maintain performance in varied conditions. Verify enclosure protection and secure weatherproofing where exposure to the elements is possible, and follow local code requirements for outdoor transformers.
The transformer carries UL Listed certification, confirming compliance with safety standards for electrical equipment. It is backed by Eaton’s warranty policy, with one year from installation or eighteen months from shipment, whichever comes first. This provides procurement confidence and support in commissioning and ongoing maintenance.
By delivering improved harmonic tolerance, EMI reduction, and reliable power conditioning, the N48M28T75CU minimizes downtime and protection wear on downstream equipment. Its voltage regulation via taps helps stabilize critical loads, reducing energy waste and unnecessary maintenance. The durable build and UL safety certification also lower risk during procurement and installation, delivering a favorable long-term ROI for mission-critical applications.