Eaton N48M28T2216 Transformer - K-Factor 13
Part Number: N48M28T2216
Quick Summary
Eaton N48M28T2216 transformer provides efficient three-phase power distribution for industrial facilities. This model delivers reliable voltage conversion from 480 V primary to 208Y/120 V secondary, supporting demanding loads with a compact footprint. Operators often wrestle with heat, energy waste, and evolving regulatory requirements, making efficiency and compliance critical. The unit is UL Listed and DOE 2016 compliant under 10 CFR Part 431, with a NEMA 2 enclosure for dependable indoor service in challenging environments. By combining high-efficiency design with rugged construction, this transformer helps reduce energy costs, lowers cooling loads, and improves overall uptime. Designed for 480 V to 208Y/120 V systems, it supports scalable distribution while preserving power quality for sensitive equipment.
Product Information
Extended Description
N48M28T2216 Eaton: Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR945, 60 Hz, 225 kVA, Floor, Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 225 kVA, 480 Vac-208Y/120 Vac, WS62, 283B, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T2216
UPC
786680147241
Product Length/Depth
33.5 in
Product Height
66.18 in
Product Width
42.18 in
Product Weight
1.1 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
10 CFR Part 431 (2016) Efficient
Coil material
Aluminum
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
FR945
Insulation
220 °C
Material
Aluminum
Mounting
Floor
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
225 kVA
Volt ampere rating
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield
Special features
K-factor 13
Weathershield
WS62
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Eaton Specification Sheet - N48M28T2216
Feature: K-Factor nonlinear ventilated design. Benefit: Handles non-linear loads with reduced voltage distortion and improved reliability, translating to fewer nuisance trips and lower maintenance costs. Application: critical plant feeders and data-center-friendly power distribution where harmonic loads are common. Feature: Aluminum windings. Benefit: Better thermal performance and corrosion resistance, contributing to longer service life in harsh environments. Application: manufacturing floors and chemical plants where ambient conditions fluctuate. Feature: NEMA 2 enclosure. Benefit: Solid indoor protection from dust and moisture, enabling straightforward installation on the factory floor. Application: indoor distribution cabinets and dry-type installations. Feature: Tap size +/- voltage regulation. Benefit: Precise voltage control with +2.5% and -2.5% steps, improving compatibility with sensitive equipment and reducing voltage-related losses. Application: facilities with variable input voltage or extended feeders. Feature: Electrostatic shield and K-Factor 13. Benefit: Enhanced harmonic control and EMI mitigation, boosting protection for upstream electronics and improving power quality. Application: facilities with non-linear loads such as VFDs and industrial drives. Feature: DOE 2016 / 10 CFR Part 431 compliance and UL Listing. Benefit: Regulatory alignment and verified energy efficiency, supporting warranty eligibility and code compliance. Application: procurement-driven projects seeking best-in-class efficiency and certification coverage.
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FAQs
The transformer is rated for a 480 V primary supply and provides a 208Y/120 V three-phase secondary. It supports 60 Hz operation with a 225 kVA rating, making it suitable for step-down distribution from high-voltage facilities to common 120/208 V loads in industrial environments.
Yes. The unit carries UL Listing and is aligned with DOE 2016 efficiency requirements per 10 CFR Part 431. This combination helps meet code compliance, reduces energy consumption, and supports warranty eligibility for corporate sustainability programs.
The transformer uses a NEMA 2 enclosure designed for indoor, floor-mounted installations. This enclosure offers robust protection against dust and moisture, simplifying integration into standard industrial basements, machine rooms, or any indoor power-distribution footprint.
Tap sizes are 2 at +2.5% and 4 at -2.5%, enabling precise voltage regulation to accommodate supply fluctuations and maintain consistent output voltage for sensitive equipment in dynamic plant environments.
K-Factor 13 indicates strong resilience to non-linear harmonic loads, reducing heat and power losses. This improves overall efficiency, lowers cooling requirements, enhances power quality for downstream drives and controls, and contributes to a lower total cost of ownership over the transformer’s service life.