Eaton N48M28F75LS45 Transformer - UL Listed K-Factor
Part Number: N48M28F75LS45
Quick Summary
Eaton K-Factor nonlinear ventilated transformer is a reliable three-phase power solution for critical facility loads. Engineers often face harmonics, noise, and EMI challenges in dense electrical rooms, which this model helps mitigate through its nonlinear design. UL Listed safety certification supports compliance, while its rugged K-13 design and ventilated cooling address heavy-duty industrial use. This solution combines robust power delivery with high reliability, aligning with data center, manufacturing, and facilities management needs. Secondary benefits include easier integration with existing power distributions and improved protection against voltage distortion in demanding environments.
Product Information
Extended Description
N48M28F75LS45 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, 115°C, 75 kVA , Al windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F75LS45
UPC
786680026270
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
Low sound equal to 45 dB
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
208Y/120 V
Temperature rise
115 °C rise
Modification 1
Low sound 45 dB
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F75LS45
Feature → Business Impact → Application: The N48M28F75LS45 employs a K-Factor nonlinear design to mitigate harmonic currents, reducing transformer heating and extending service life in systems with high non-linear loading, such as drives and converters in manufacturing lines. This translates to improved efficiency and reliability in three-phase power distribution for production facilities and campuses. Application: Use in data centers and industrial facilities where power quality is essential to protect sensitive equipment. Feature → Business Impact → Application: Ventilated 75 kVA transformer with a 915D frame and aluminum windings enhances cooling, enabling constant operation under elevated loading while simplifying installation in constrained spaces. Application: Retrofit projects or new builds in mechanical rooms with limited airflow or higher ambient temperatures. Feature → Business Impact → Application: Low noise 45 dB specification and electrostatic shielding reduce EMI and acoustic disruption, supporting compliance with noise codes and enabling placement closer to work areas. Application: Medical, lab, and office-adjacent facilities requiring quiet operation and EMI control. Feature → Business Impact → Application: Tap capability (+2.5% FCAN, -2.5% FCBN) provides voltage flexibility to manage supply variations, lowering the risk of voltage mismatch and overheating. Application: Sites with fluctuating utility voltages or where precise secondary voltage is critical. Feature → Business Impact → Application: WS39 weather shield option extends outdoor or semi-outdoor viability, protecting windings from environmental exposure and reducing maintenance, making it suitable for protected outdoor installations. Application: Outdoor electrical rooms and harsh environments where weather exposure is a concern. Feature → Business Impact → Application: UL Listed certification and a one-year warranty (18 months from shipment) reduce risk during deployment and support long-term service planning. Application: Standard industrial installations demanding safety compliance and predictable service terms.
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FAQs
This N48M28F75LS45 is a three-phase, 75 kVA transformer with 915D frame and dimensions 22 in L x 29 in W x 39 in H, weighing 600 lb. Plan for ventilated, indoor installation, allow clearance for access, and use the WS39 weather shield if exposed to moisture; aluminum windings simplify mounting.
The transformer is rated 75 kVA, three-phase, 60 Hz, with a primary voltage of 480 V and a secondary of 208Y/120 V. It provides dual taps at +2.5% FCAN and -2.5% FCBN, uses aluminum windings, and features a 115°C rise with K-Factor nonlinear design for harmonic mitigation.
Yes. The catalog notes specify a low sound level of 45 dB, thanks to its ventilated K‑13 design and optimized frame. For sensitive facilities, position away from occupied spaces and consider the WS39 weather shield for external installations to maintain acoustics while meeting safety requirements. This helps keep compliance with noise limits in data centers and manufacturing floors.
It is UL Listed per Eaton's specifications, demonstrating safety and compliance with electrical standards for industrial equipment. The datasheet notes support for standard industrial installation; for regulated environments, verify your facility's local codes and any additional CE or regional certifications as required.
With its 75 kVA rating and low-maintenance aluminum windings, the N48M28F75LS45 offers long-term reliability and reduced maintenance costs. The 600 lb weight and robust 915D frame support easier installation, while a 1-year warranty (or 18 months from shipment) reduces risk during deployment and commissioning. Coupled with low noise and integrated shielding, this minimizes downtime and EMI-related troubleshooting for critical loads.