Eaton N48M28T12 Transformer - K-13, UL Listed
Part Number: N48M28T12
Quick Summary
N48M28T12 is a K‑Factor nonlinear ventilated transformer for critical power distribution in industrial facilities. Engineers often struggle with heat buildup, efficiency losses, and space constraints under peak loads, which can compromise uptime and safety. This Eaton solution is UL Listed and designed to minimize harmonic heating with its K-Factor approach, while providing robust protection through an electrostatic shield and weather shield options. With a 112.5 kVA rating, three-phase operation at 60 Hz, and a primary 480 V input feeding a 208Y/120 V secondary, it supports reliable, harmonics-resilient power delivery. The combination of high-temperature rise tolerance and tunable taps helps optimize performance, reduce maintenance cycles, and improve total cost of ownership in demanding plants.
Product Information
Extended Description
N48M28T12 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, 112.5 kVA , Al windings, Elec. Shield, Frame: 916A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T12
UPC
786680036194
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
889 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
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
112.5 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T12
Feature → Business Impact → Application: K-Factor nonlinear design reduces harmonic heating and improves transformer life, lowering maintenance costs and unplanned downtime in facilities with nonlinear loads; suitable for data centers, motors, and drives that generate harmonics. Three-phase 480 V primary to 208Y/120 V secondary configuration enables straightforward integration with common plant distributions, reducing wiring complexity and installation time on manufacturing floors. Aluminum windings paired with an electrostatic shield improve electrical reliability and EMI control, supporting safer operation in electrically dense environments and enabling tighter compliance with noise-sensitive equipment. Tap settings—2 at +2.5% FCAN and 4 at -2.5% FCBN—allow voltage tuning to match site conditions, improving regulation and reducing the risk of undervoltage or overvoltage on critical loads. Frame 916A, WS19 weather shield, and a 889 lb footprint provide a rugged, install-ready solution for indoor and outdoor spaces with proper enclosure planning. This transformer is UL Listed, reflecting adherence to recognized safety standards for industrial power equipment, while its 150°C rise rating supports high-load scenarios without compromising insulation health. In practice, installers benefit from compatibility with Eaton catalogs, documented datasheets, and straightforward serviceability, helping asset owners justify capital investments through predictable performance and extended asset life.
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FAQs
The N48M28T12 is a three‑phase transformer with a 480 V primary and a 208Y/120 V secondary. This configuration aligns with common industrial MDPs and panel boards, enabling straightforward integration with standard distribution systems and control voltages across manufacturing lines.
The K‑Factor nonlinear design reduces harmonic heating by better managing the distortion produced by nonlinear loads. This improves efficiency, lowers transformer temperature rise, extends insulation life, and reduces maintenance frequency in facilities with drives, welders, and large variable-speed equipment.
Yes, the transformer features a WS19 weather shield option and an electrostatic shield, which enhance environmental resilience and EMI control. Ensure appropriate enclosure, ventilation, and clearances per electrical codes and the listed installation guidelines to maintain performance in outdoor or semi-outdoor spaces.
The unit weighs 889 lb and fits within a 23.42 in L x 28.22 in W x 48.56 in H footprint in its 916A frame. Plan floor loading, provide adequate clearance for cooling and tap access, and ensure mounting surfaces meet structural requirements. Use the supplied mounting provisions and follow the 60 Hz, three‑phase wiring guidelines in the Eaton datasheets.
The product is covered by Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Routine inspection of cooling paths, tightness of terminations, and verifying tap settings during scheduled maintenance helps sustain reliability and protect ROI across the asset lifecycle.