Eaton N48D28B7516CU Transformer - DOE2016 Efficient
Part Number: N48D28B7516CU
Quick Summary
Eaton N48D28B7516CU is a high-efficiency three-phase transformer designed for industrial power distribution in manufacturing facilities and data centers. Engineers often struggle with heat, energy losses, and regulatory compliance when scaling power to non-linear loads. This unit meets DOE 2016 Efficient requirements, is UL Listed, and uses a robust NEMA 2 enclosure with an electrostatic shield for durable indoor service. With copper windings and a K-Factor 13 rating, it delivers reliable performance, while WS60 weather shielding provides installation flexibility in protected environments. The combination of precise voltage regulation, rugged construction, and industry certifications translates to lower operating costs and predictable performance in critical plant power networks.
Product Information
Extended Description
N48D28B7516CU Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR943, 60 Hz, 220C, 75 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS60, 305K, K13
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28B7516CU
UPC
786680245169
Product Length/Depth
31.5 in
Product Height
51 in
Product Width
34.5 in
Product Weight
1112 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
943
Insulation
220 °C
Material
Copper windings
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 2 at -2.5%
Frequency rating
60 Hz
Kva Rating
75 kVA
Volt ampere rating
75 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
Special features
K-factor 13
Weathershield
WS60
Feature: DOE 2016 Efficient compliance. Business impact: reduces energy losses and cooling requirements, lowering total cost of ownership in facilities with continuous duty loads. Application: manufacturing lines and data centers seeking energy optimization without compromising reliability. Feature: Copper windings and K-Factor 13 profile. Business impact: improved efficiency under non-linear loading and reduced temperature rise, enhancing equipment life. Application: environments with harmonics from variable-frequency drives and sensitive electronics. Feature: NEMA 2 enclosure with WS60 option. Business impact: durable indoor protection and weather-ready flexibility for room-based or semi-protected installations. Application: electrical rooms and floor-mounted MCCs in factories. Feature: Tap changer ±2.5% (two taps up, two taps down). Business impact: voltage regulation to maintain downstream equipment within tolerance under supply variance. Application: motor control centers and distribution panels facing voltage fluctuations. Feature: 480 V primary to 208Y/120 V secondary, 60 Hz, 75 kVA rating. Business impact: scalable, dual-voltage distribution with predictable loss characteristics and straightforward integration. Application: mid-size industrial plants and integrated power distribution schemes. Feature: Frame 943, 1112 lb weight, copper windings, 220 °C insulation. Business impact: robust, long-life transformer capable of sustaining continuous operation with dependable thermal margins. Application: heavy-duty installations requiring durable, high-capacity power conversion.
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FAQs
This unit is designed for floor or wall mounting in upright orientation with a compact footprint reflective of its 51 inch tall height and 34.5 inch width. It uses a NEMA 2 enclosure and supports WS60 weather shielding for added protection. Plan for a sturdy, level installation surface capable of supporting roughly 1,112 pounds, plus clear access for maintenance and taps.
The transformer is a 75 kVA, three-phase device with a 480 V primary and 208Y/120 V secondary, rated for 60 Hz operation and an 80 °C rise. It features copper windings, shielding, and a K-Factor 13 design to handle nonlinear loads, with copper windings and 220 °C insulation providing durability and thermal headroom.
Yes. The N48D28B7516CU meets DOE 2016 Efficient standards and is UL Listed, with catalog notes referencing 10 CFR Part 431 (2016) Efficient. This compliance translates to lower energy losses, reduced cooling requirements, and verified safety and performance, which streamline procurement, commissioning, and long-term energy management.
Ideal for mid-size facilities with non-linear loads, including motor control centers, data centers, and mixed-use manufacturing lines. The 480 V to 208Y/120 V secondary configuration supports common building distributions, while the robust enclosure and shielded design improve reliability in harsh indoor environments.
Benefits derive from lower energy losses due to DOE efficiency, reduced cooling loads, and durable copper windings with a high insulation rating. The NEMA 2 enclosure and WS60 shield reduce maintenance exposure, while the ±2.5% taps simplify voltage regulation, contributing to longer equipment life and lower total cost of ownership in facilities with fluctuating supply voltages.