Eaton N48D28B4916CUI3 K-Factor Transformer - K13
Part Number: N48D28B4916CUI3
Quick Summary
Eaton K-Factor nonlinear ventilated transformer provides efficient, reliable power for industrial facilities and automation projects. Facilities often face heat-related efficiency losses and rising energy costs, especially with harmonic-rich loads in demanding environments. This unit carries DOE 2016 Efficient and UL Listed certifications, with a rugged NEMA 2 enclosure for durable operation in harsh spaces. With copper windings and an 80 °C rise rating, it supports stable 480 V to 208Y/120 V distribution, delivering measurable energy savings and improved uptime for three-phase power systems and automation controls.
Product Information
Extended Description
N48D28B4916CUI3 Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR944W, 60 Hz, 220C, 150 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS61, 305K, K13, 3-in IR window
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28B4916CUI3
UPC
786680245596
Product Length/Depth
33.5 in
Product Height
60 in
Product Width
38 in
Product Weight
2135 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
305K
Type
Energy-efficient ventilated transformer
Frame
944W
Insulation
220 °C
Material
Copper windings
Mounting
Floor
Tap size
2 at +2.5%, 2 at -2.5%
Frequency rating
60 Hz
Kva Rating
150 kVA
Volt ampere rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
80 °C rise
Voltage rating
480 Vac-208Y/120 Vac
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Modification 1
Electrostatic shield, 3 in IR window
Special features
K-factor 13
Weathershield
WS61
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48D28B4916CUI3
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: K-Factor 13 designation reduces harmonic distortion and improves power quality, helping systems run cooler and more reliably, which translates to lower maintenance costs and longer equipment life in high-demand automation lines and manufacturing cells. Feature → Application: Copper windings in a 150 kVA, three-phase transformer minimize resistive losses, delivering higher overall efficiency and reduced energy bills in large motor drives and process equipment. Feature → Application: DOE 2016 Efficient compliance, 60 Hz operation, and 80 °C rise support regulatory alignment and consistent performance in facilities facing strict energy codes and uptime targets. Feature → Application: NEMA 2 enclosure with electrostatic shield, 3 in IR window, and WS61 weathershield enables rugged outdoor/indoor use and easier maintenance in dusty or humid factory floors. Feature → Application: Floor mounting with defined tap sizes (2 at +2.5%, 2 at -2.5%) provides installation flexibility for retrofits and new builds, reducing downtime during commissioning and enabling straightforward integration into existing panels.
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FAQs
The N48D28B4916CUI3 is designed for floor mounting with a substantial footprint (33.5 in depth, 38 in width, 60 in height) and a 2135 lb weight, using standard 305K wiring connections and a 2 at +2.5%, 2 at -2.5% tap system. This compatibility simplifies retrofits into existing switchgear or control rooms, reducing integration risk and downtime.
This unit provides 150 kVA at 60 Hz in a three-phase configuration, with a primary voltage of 480 V and a secondary of 208Y/120 V. It uses copper windings, supports a 80 °C rise, and delivers energy-efficient operation aligned with DOE 2016 standards, making it suitable for harmonic-rich loads and distributed systems.
Yes. The N48D28B4916CUI3 meets DOE 2016 Efficient requirements and is UL Listed, ensuring compliance with energy performance and safety standards for industrial power distribution equipment used in commercial and manufacturing facilities.
Ideal for three-phase power distribution in facilities with nonlinear loads, such as motor drives, presses, and automation controllers. Its K-Factor 13 rating helps mitigate harmonic distortion, while the rugged NEMA 2 enclosure protects against dust, moisture, and incidental impacts on factory floors.
Expect standard maintenance to focus on inspection of windings, enclosure integrity, and connection terminations. The device is UL Listed and DOE compliant, which supports long-term reliability. For policy specifics, refer to Eaton’s Selling Policy 25-000, which covers distribution and control product warranties and service terms.