Eaton N48D28T4921LS50 Transformer - DOE2016 Efficient
Part Number: N48D28T4921LS50
Quick Summary
Eaton N48D28T4921LS50 Transformer is a high-efficiency power transformer for critical distribution in industrial and data-center environments. A common challenge is heat, downtime, and energy waste in large feeders and switchgear. DOE2016 Efficient and UL Listed certifications ensure compliance and reliable performance in demanding environments. With a 150 kVA rating and three-phase 480 V input to 208Y/120 V output, it supports scalable distribution while minimizing losses. Its ventilated K-Factor design reduces heat rise, boosts uptime, lowers cooling costs, and simplifies service planning for facilities and manufacturing sites. Compact footprint and certified documentation make installation planning and future expansion straightforward. This combination supports faster procurement cycles and reduced risk in capital projects.
Product Information
Extended Description
N48D28T4921LS50 Eaton: Eaton NextGen K-Factor, DOE2016 50dB, 150KVA, K13 XFMR, 3PH, 480-208Y/120, 150C
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28T4921LS50
UPC
786689670344
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: K-Factor nonlinear ventilated transformer with DOE2016 efficiency. Business impact: reduced heat generation and energy losses, lowering cooling requirements and extending component life in high-density electrical rooms. Application: ideal for data centers, manufacturing floors, and critical switchgear configurations where voltage stability and uptime are essential for production continuity. Feature: 150 kVA rating, three-phase operation, 480 V primary, and 208Y/120 V secondary. Business impact: scalable capacity with improved voltage regulation, lower impedance, and reduced transformer heating under peak loads, enabling more compact equipment racks and simpler panel design. Application: suitable for main distribution feeders, substations, and facilities planning where growth is projected and downtime costs are high. The high-efficiency design also supports heat and noise reductions that simplify compliance with workplace standards. Feature: 150 °C rise tolerance with a ventilated design. Business impact: higher thermal margin translates to fewer deratings and longer insulation life in hot environments, reducing maintenance and replacement cycles. Application: fits harsh industrial plants and data centers with limited cooling capacity, ensuring continued operation during temperature surges and seasonal peaks. The ventilation scheme also helps sustain performance in tightly packed electrical rooms. Feature: Certifications include DOE2016 Efficient and UL Listed, with K13 XFMR designation. Business impact: regulatory compliance, safety assurance, and procurement confidence across regulated sectors, as well as smoother approval cycles for projects using energy-efficient equipment. Application: suitable for healthcare, food and beverage, and industrial automation projects requiring documented standards and reliable warranty support. Feature: Physical footprint 31.5 in length, 34.5 in width, 51 in height; weight 1200 lb; wiring connection 305K; frame 943. Business impact: space planning and installation efficiency with clear dimensional data, sturdy mounting, and predictable shipping. Application: retrofit and new-install projects where lifting equipment, floor loading, and precise clearance are part of the budget and schedule.
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FAQs
For instalaciones in 480 V three-phase systems, verify clearance and mounting space based on the 31.5 in x 34.5 in footprint and 51 in height. Ensure appropriate lifting equipment for the 1200 lb unit, confirm wiring insulation class 305K compatibility, and plan for adequate ventilation to leverage the K-Factor ventilated design. Follow Eaton’s installation guide and local electrical codes.
Key specs include a 150 kVA rating, 3-phase configuration, 480 V primary, and 208Y/120 V secondary, with a 150 °C rise. This combination supports scalable loading, tight voltage regulation, and robust thermal performance under peak demand. Understanding these values helps in sizing upstream breakers, ensuring proper protection, and predicting heat dissipation in switchgear rooms.
Yes. The N48D28T4921LS50 is designed for high-demand environments, delivering DOE2016 efficiency with UL safety certification. Its K-Factor nonlinear ventilation aids heat management, supporting uptime in data centers and manufacturing lines. The 480 V to 208Y/120 V output supports common IT and automation equipment, while the 150 kVA rating accommodates growth without oversized solutions.
The unit carries DOE2016 Efficient certification and UL Listed protection, along with K13 XFMR designation. These certifications assure energy efficiency, safety compliance, and reliability, streamlining procurement, regulatory approvals, and maintenance planning—critical for regulated industries and long-term capital projects.
DOE2016 efficiency reduces energy losses and cooling costs, contributing to lower total cost of ownership over the transformer’s life. Maintenance considerations focus on routine inspections of cooling performance, insulation integrity for the 150 °C rise environment, and verification of wiring accessories (305K) and mounting frame (943) during periodic servicing.