Eaton N48D28T4921 Transformer - UL Listed, DOE2016 K-Factor
Part Number: N48D28T4921
Quick Summary
The Eaton N48D28T4921 Transformer provides efficient three‑phase power for industrial distribution and panel setups. Facility teams often battle energy losses, heat buildup, and compliance hurdles when upgrading aging transformers. It carries UL Listed safety certification and DOE2016 Efficient compliance, with K13 features that support tighter voltage regulation. As a robust K-Factor nonlinear ventilated transformer, it helps cut cooling costs and improve reliability in data centers and manufacturing plants. With a 150 kVA rating, 480 V primary, and 208Y/120 V secondary, this solution aligns with modern automation controls and panel boards for scalable power distribution.
Product Information
Extended Description
N48D28T4921 Eaton: Eaton NextGen K-Factor DOE2016, 150KVA, K13 XFMR, 3PH, 480-208Y/120, 150C, D-Taps
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28T4921
UPC
786689670863
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1200 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Wiring connection
305K
Type
Energy-efficient ventilated transformer
Frame
943
Kva Rating
150 kVA
Volt ampere rating
150KVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
K13
DOE2016 Efficient performance delivers measurable energy savings by reducing core losses and heat, lowering operating costs and easing cooling requirements in mid-size industrial facilities. The K-Factor nonlinear design helps mitigate harmonic distortion, improving power quality for sensitive equipment and enabling more stable operation in automation panels. UL Listed safety certification simplifies procurement, accelerates approvals, and supports warranty coverage in regulated environments such as healthcare and data centers. The ventilated construction, rated for a 150 °C rise, enhances cooling efficiency in hot plant rooms and on dense production lines, reducing the need for aggressive external cooling. A 150 kVA capacity with a 480 V to 208Y/120 V output supports efficient panel distribution and minimizes the number of transformers required on multi-load sites. Precise wiring connections (305K) and the 943 frame enable straightforward installation and compatibility with Eaton ecosystem components.
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FAQs
Plan for the unit's substantial footprint: dimensions are 31.5 in depth, 51 in height, and 34.5 in width, with a weight around 1200 lb. Ensure adequate space for ventilated cooling, proper clearance, and access for maintenance. The 305K wiring connection and the 943 frame guide mounting, while the DOE2016 efficiency and UL Listed safety support compliant installation in regulated facilities.
It is a 150 kVA three-phase transformer with a 480 V primary and a 208Y/120 V secondary, designed to support mid-range distribution needs within automation panels and manufacturing lines. The K-Factor nonlinear design helps manage harmonics, improving power quality for sensitive loads, while DOE2016 efficiency delivers measurable energy savings across continuous operation.
The N48D28T4921 carries UL Listed certification for safety and DOE2016 Efficient compliance for energy performance. These two certifications provide procurement confidence, regulatory alignment, and reduced risk during audits. The K13 feature adds enhanced voltage regulation under dynamic loading, supporting stable operation in demanding environments.
K-Factor nonlinear design targets harmonic distortion and improved efficiency, reducing I2R losses and cooling energy requirements. The DOE2016 Efficient standard complements this by promoting lower overall energy use. In practice, you gain lower operating costs, better uptime, and more predictable performance for critical processes in data centers and automated manufacturing lines.
Yes. The N48D28T4921 is designed for seamless integration with Eaton’s ecosystem, including modular centers and related installation accessories. Its 305K wiring, D-Tap compatibility implied by its practical design, and the 943 frame support straightforward mounting and wiring in existing or new panel configurations, simplifying upgrades and future expansions.