Eaton N48M28T7516CUSRTR-US K-Factor Transformer - UL Listed
Part Number: N48M28T7516CUSRTR-US
Quick Summary
Eaton K-Factor nonlinear ventilated transformer is designed to deliver robust 75 kVA power isolation for 3‑phase industrial deployments. Facilities struggle with voltage stability, energy costs, and equipment compatibility when upgrading power distribution. This unit carries UL Listed, DOE 2016 Efficient, and NEMA 3R enclosure certifications, plus rugged copper windings for harsh environments. With 480 V delta input and 208Y/120 V output, CASE C frame, and 2 AT/4 AT taps, it enables seamless integration into modern facilities while supporting long-term cost savings and reliable power management.
Product Information
Extended Description
N48M28T7516CUSRTR-US Eaton: EATON K-FACTOR NONLINEAR VENTILATED TRANSFORMER DOE 2016, 60 HZ, 75KVA, 3PH, 480V DELTA, 208Y/120V, NEMA ST-20, 150°C RISE, NEMA 3R, CASE A, 220°C, 2 AT +2.5% FCAN, 4 AT -2.5% FCBN
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T7516CUSRTR-US
UPC
786689906405
Product Length/Depth
21.75 in
Product Height
40.5 in
Product Width
31.5 in
Product Weight
660 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 3R
Frame
CASE C
Insulation
220 °C
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 delta
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Special features
MADE IN AMERICA CU SOUND & TEST REPORT
Feature: K-Factor nonlinear ventilated design effectively manages harmonic-rich loads encountered in modern automation systems and power-intensive equipment. This reduces waveform distortion and thermal stress, extending transformer life under diverse duty cycles. It is ideal for manufacturing lines, data centers, and mixed-load facilities where power quality directly impacts uptime. Feature: DOE 2016 Efficient rating paired with UL Listed certification provides energy savings and regulatory assurance. These credentials simplify ownership by lowering operating costs and easing compliance reporting. They are especially valuable where energy dashboards, audits, and sustainability targets drive procurement. Feature: Primary 480 V delta to secondary 208Y/120 V in a robust 75 kVA three-phase package offers versatile distribution. This configuration improves compatibility with existing electrical infrastructures and simplifies downstream connections for balanced, reliable operation. It supports plant-wide distribution upgrades, drive systems, panelboard modernization, and serviceability in manufacturing settings. Feature: NEMA 3R enclosure with CASE C frame delivers outdoor-ready ruggedness and reliable performance across environments. Copper windings with 220 °C insulation and a 150 °C rise provide robust thermal margins under peak loads. These attributes make it suitable for outdoor substations and controlled plant areas needing durable, low-maintenance power transformers. Feature: Tap changer offers 2 AT +2.5% FCAN and 4 AT -2.5% FCBN for precise voltage regulation under fluctuating loads. The taps minimize voltage drop across long feeders, improving downstream equipment performance and process stability without additional hardware. This capability is especially beneficial in facilities with variable demand, long feeders, and harmonic-heavy drives. Feature: Copper windings, 60 Hz operation, and 75 kVA rating deliver dependable power management with predictable maintenance needs. The unit weighs 660 lb and fits a CASE C footprint, aiding installation planning, space budgeting, and retrofit sequencing. With UL and DOE compliance plus a compact footprint, it integrates smoothly into new builds and modernization programs.
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FAQs
When installing this 75 kVA transformer, plan for a CASE C footprint, ensure adequate clearance for cooling and ventilation, and provide solid primary connections to 480 V delta and a balanced 208Y/120 V secondary. Verify grounding requirements per local codes, and position the unit within reach of taps for safe voltage adjustments during commissioning.
The K-Factor nonlinear design mitigates harmonic currents by managing waveform distortion, reducing overheating and insulation stress. This improves reliability for continuous-load drives and sensitive electronics. In practice, facilities see steadier voltages, reduced downtime, and longer equipment life when integrating drives, CNCs, and automation controllers with the transformer.
Yes. The transformer carries the DOE 2016 Efficient designation and UL Listing, enabling energy savings while meeting safety and performance regulations. This simplifies procurement, supports sustainability reporting, and ensures the unit aligns with regulatory expectations in industrial facilities and data centers.
This model provides 2 AT +2.5% FCAN and 4 AT -2.5% FCBN taps. These allow precise voltage regulation to compensate for feeder drop and load changes without replacing components. Use the taps during commissioning and periodic maintenance to maintain a stable secondary voltage under fluctuating loads.
Best-suited applications include plant-wide power distribution, motor drive interfaces, and panelboard modernization in manufacturing, as well as IT infrastructure and automation racks in data centers. The unit’s rugged NEMA 3R enclosure, copper windings, and 60 Hz operation support reliable outdoor and indoor installations with predictable maintenance needs.