Eaton N48D28B3016CU Transformer - DOE 2016 Efficient
Part Number: N48D28B3016CU
Quick Summary
Eaton N48D28B3016CU is a K-Factor nonlinear ventilated transformer for three-phase power distribution. Facility teams often wrestle with heat, energy waste, and space constraints in modern electrical rooms. This unit carries UL Listed, DOE 2016 Efficient, and NEMA 2 enclosure certifications, delivering reliable performance in harsh environments. The combination of copper windings, a 30 kVA rating, and flexible floor or wall installation supports scalable electrical infrastructure, while reducing cooling needs and energy losses. For engineers and procurement professionals, this translates to lower operating costs, easier compliance, and a smoother path to on-site commissioning.
Product Information
Extended Description
N48D28B3016CU Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, 60 Hz, 220°C, 30 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 2 at +2.5%, 2 at -2.5%, 80°C, 30 kVA, 480 Vac-208Y/120 Vac, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28B3016CU
UPC
786680204081
Product Length/Depth
21.13 in
Product Height
36.88 in
Product Width
24.88 in
Product Weight
476 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Type
Energy-efficient ventilated transformer
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 2 at -2.5%
Frequency rating
60 Hz
Kva Rating
30 kVA
Volt ampere rating
30 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
Eaton's high-efficiency dry-type transformers
Eaton's high-efficiency dry-type transformers
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48D28B3016CU
Feature: Copper windings and energy-efficient design → Business Impact: Lower I2R losses, reduced heat generation, and improved overall efficiency → Application: Control panels and industrial power distribution where cooling capacity is a constraint. Feature: K-Factor 13 with electrostatic shield → Business Impact: Lower harmonic distortion and EMI, ensuring more stable downstream equipment performance → Application: Sensitive equipment in manufacturing cells and data processing areas. Feature: 30 kVA three-phase transformer with 480 V primary and 208Y/120 V secondary → Business Impact: Simple integration with existing 480 V feeders and standard 208Y/120 V loads, reducing wiring complexity → Application: Machine tools, robotic cells, and panelboard upgrades. Feature: NEMA 2 enclosure and DOE 2016 efficiency → Business Impact: Weather-resistant protection and compliance with energy standards, lowering lifecycle costs → Application: Harsh indoor environments and mission-critical applications requiring robust enclosure. Feature: Tap adjustments at +2.5% and -2.5% → Business Impact: Precise voltage regulation to protect sensitive loads and minimize performance deviations → Application: Equipment with strict voltage tolerance in variable supply scenarios. Feature: Floor or wall mounting with substantial footprint (21.13 in depth, 24.88 in width, 36.88 in height; 476 lb) → Business Impact: Flexible installation in limited spaces and straightforward retrofits → Application: Industrial facilities with constrained electrical room real estate. These attributes collectively support compliance, reliability, and measurable efficiency gains in industrial settings.
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FAQs
This transformer supports floor or wall mounting and uses standard 480 V input with a 208Y/120 V output, facilitating straightforward retrofits. Ensure adequate clearance for ventilation and access to taps (+/−2.5%) for voltage tuning, and verify compatibility with enclosure type and DOE requirements for compliant installations.
Key specs include a 30 kVA rating, three-phase configuration, primary 480 V, secondary 208Y/120 V, 60 Hz frequency, 80 °C rise, copper windings, NEMA 2 enclosure, and DOE 2016 efficiency. It also features a K-Factor 13 designation and an electrostatic shield to minimize interference and losses.
Yes. The UL Listed certification and NEMA 2 enclosure provide rugged indoor protection, while DOE 2016 efficiency reduces cooling loads in data centers and manufacturing floors. Copper windings and precise taps improve reliability in environments with voltage fluctuations and EMI concerns.
The N48D28B3016CU carries UL Listed status, DOE 2016 Efficient compliance, and a NEMA 2 enclosure rating, ensuring safe operation in controlled indoor spaces and alignment with energy efficiency mandates for new installations and upgrades.
The 30 kVA, high-efficiency design lowers energy and cooling costs over the life of the asset, while copper windings offer durability and reduced maintenance. With UL and DOE certifications, ongoing compliance is streamlined, and the electrostatic shield helps maintain performance, potentially reducing downtime and service visits.