Eaton N48D28T4921CULS50 K-Factor Transformer - DOE2016
Part Number: N48D28T4921CULS50
Quick Summary
Eaton N48D28T4921CULS50 is a K-Factor nonlinear ventilated transformer for efficient three-phase power distribution in industrial facilities. Site operators often contend with heat buildup, efficiency losses, and limited space that threaten uptime. DOE2016 efficient, UL Listed, and K13 features combine to deliver safer operation, lower energy costs, and regulatory compliance. In practice, it supports reliability in data centers, manufacturing lines, and automation panels while helping you meet energy-management targets. With a 150 kVA rating and a 480 V primary to 208Y/120 V secondary, it enables scalable upgrades without panel reconfigurations. UL Listed certification and DOE2016 Efficient compliance help you simplify procurement, reduce risk, and meet internal sustainability goals.
Product Information
Extended Description
N48D28T4921CULS50 Eaton: Eaton NextGen K-Factor, DOE2016 CU 50dB, 150KVA, K13 XFMR, 3PH, 480-208Y/120, 150C, D-Taps
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28T4921CULS50
UPC
786689670603
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
Feature → Business Impact → Application: The N48D28T4921CULS50 uses a K-Factor nonlinear ventilated design that minimizes loss-related heat under variable loading, delivering smoother thermal performance and reduced cooling requirements in tight electrical rooms. This translates to measurable energy savings and extended equipment life in manufacturing lines and automation panels. Feature → Business Impact → Application: With a 150 kVA rating and a three-phase 480 V input to 208Y/120 V output, it supports scalable power distribution for growing facilities, reducing voltage drop and enabling reliable startup of heavy machinery and critical automation. Feature → Business Impact → Application: DOE2016 Efficient and UL Listed compliance simplify procurement and regulatory adherence, lowering total cost of ownership while maintaining safety standards across data centers and industrial plants. Feature → Business Impact → Application: The windings and wiring connection (305K) provide robust terminations and easy field wiring, improving installation time and fault isolation during panel modernization projects. Feature → Business Impact → Application: The energy-efficient ventilated frame (943) with a 150 °C rise capability offers better protection against overheating in dense switchgear, enabling safer maintenance windows in high-demand environments. Feature → Business Impact → Application: Complementary resources such as Eaton’s Transformer Flex Center video and the official specification sheet support installers with best-practice installation, configuration checks, and compliance verification across multiple facilities.
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FAQs
For proper installation, ensure adequate ventilation around the transformer to support its ventilated design, provide sufficient clearance for 305K wiring terminations, and plan for a robust 3-phase feed from 480 V with a 208Y/120 V secondary. Confirm mounting supports and access for routine maintenance, and reference the official specification sheet for recommended clearances and adaptor options.
Yes. With a 150 kVA rating, three-phase operation, and a DOE2016 Efficient compliant design, it is well-suited for data centers and automation panels where reliable power, thermal management, and energy efficiency are critical. UL Listing adds an additional layer of safety compliance, while K13 features support thermal resilience in dense installations.
The N48D28T4921CULS50 is DOE2016 Efficient compliant and UL Listed, which helps streamline procurement, ensure regulatory alignment, and validate performance. These certifications support energy-management initiatives and compliance with common industry standards in industrial environments.
Expect improved efficiency due to DOE2016 compliance, which reduces losses under load, and enhanced thermal performance from the ventilated design. The transformer’s 150 °C rise specification provides a framework for safer operation under peak loads, potentially reducing cooling costs and downtime in high-demand installations.
Download the Eaton Specification Sheet for N48D28T4921CULS50 from Eaton’s site to view full electrical ratings, dimensions, and installation notes. For practical guidance, watch Eaton’s Transformer Flex Center video which demonstrates integration, configuration, and optimization within complex power distribution schemes.