Eaton N48D28T5516QCU Power transformer - UL Listed

Part Number: N48D28T5516QCU
Manufacturer
Eaton
Part number
N48D28T5516QCU

Quick Summary

Eaton N48D28T5516QCU General concept ventilated transformer provides reliable voltage conversion for commercial and light-industrial power distribution. Many facilities struggle with space constraints and rising energy costs when integrating large dry-type transformers. This unit complies with DOE 2016 efficiency standards and is UL Listed for safety, with a rugged NEMA 1 enclosure suited to floor mounting. With a 480 V primary and 208Y/120 V secondary, it supports scalable, compliant power delivery for manufacturing and data-center adjacencies, helping you reduce downtime and optimize ROI. Its copper windings and K-13 modification option further enhance thermal performance and regulatory alignment, delivering dependable service in demanding environments. Designed for installation in indoor spaces, the transformer integrates with common facility distribution schemes and offers straightforward maintenance planning.

Product Information

Extended Description

N48D28T5516QCU Eaton: 500 kVA K-13 DOE 2016 Efficient General Purpose Ventd Transformer PV 480V Delta, 208Y/120, 150C rise, Copper windings, NEMA 1, Q design
Product Name
Eaton General purpose ventilated transformer
Catalog Number
N48D28T5516QCU
UPC
786680236143
Product Length/Depth
44.25 in
Product Height
80.25 in
Product Width
64 in
Product Weight
1.1 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 1
Frame
GPF
Insulation
220 °C
Mounting
Floor
Tap size
+2 at 2.5% FCAN, -2 at 2.5% FCBN
Efficiency
10 CFR Part 431-2016 (DOE 2016)
Frequency rating
60 Hz
Kva Rating
500 kVA
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Volt ampere rating
500 kVA
Modification 1
K-13
DOE 2016 Efficient performance reduces line losses, delivering measurable energy savings across the facility and improving total cost of ownership. In manufacturing lines and commercial spaces, this translates to lower utility bills and a smaller carbon footprint while meeting corporate sustainability targets. 500 kVA rating with a 480 V primary and 208Y/120 V secondary provides headroom for peak loads and future expansion. The design supports critical loads on machine tools, control panels, and facility feeders, reducing the risk of voltage sag and unplanned downtime. Copper windings paired with 220 °C insulation deliver high thermal capability and durability under continuous operation, improving service life in hot, demanding environments. NEMA 1 enclosure and floor mounting simplify indoor installation, minimize footprint, and ease maintenance in crowded electrical rooms. The rugged construction supports reliable service in busy facilities and reduces enclosure-related corrosion or contamination concerns. Tap size options of +2 at 2.5% FCAN and -2 at 2.5% FCBN enable precise voltage regulation under load and fluctuating supply conditions, helping keep sensitive equipment within tolerance without oversized transformers. K-13 modification aligns with DOE efficiency expectations, and UL Listed certification confirms electrical safety and compliance across standards, enabling faster procurement and smoother audits. Sound levels in line with NEMA ST-20 help ensure acceptable operation near offices and workspaces, while 60 Hz operation matches standard industrial power systems.

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FAQs

This transformer is designed for 480 V delta primary and 208Y/120 V secondary outputs, 60 Hz operation, and copper windings. It supports floor-mounted installation in indoor spaces and integrates with common distribution schemes found in manufacturing, data centers, and commercial facilities, providing reliable voltage conversion for critical loads.
The unit is UL Listed and compliant with DOE 2016 Efficient standards. It also references 10 CFR Part 431 (2016) Efficient guidelines, ensuring safety, energy efficiency, and regulatory alignment across procurement and audits.
Plan for indoor, dry-space installation with adequate ventilation and clearance around the NEMA 1 enclosure. Floor mounting minimizes footprint, while copper windings and 150 °C rise support robust thermal performance. Ensure proper protection from dust and moisture and follow market-standard electrical codes during mounting and wiring.
K-13 is a DOE efficiency modification that aligns the unit with latest energy standards, delivering improved operating efficiency and long-term energy savings. It also supports smoother compliance during energy audits and reduces lifecycle energy costs in regulated environments.
The 500 kVA rating supports current and growth loads, while DOE 2016 efficiency and UL safety certifications reduce energy waste and risk. Combined with maintenance-friendly NEMA 1 construction and voltage-tap regulation, this transformer lowers energy spend, minimizes downtime, and simplifies compliance — contributing to a favorable total cost of ownership over its service life.