Eaton N48M28T2516 Energy-efficient ventilated transformer - K-factor 13
Part Number: N48M28T2516
Quick Summary
N48M28T2516 is an energy-efficient ventilated transformer designed for reliable three-phase power distribution in industrial facilities. It addresses the common challenge of balancing efficiency with protection and uptime in demanding environments. This unit is UL Listed, aligns with DOE 2016 Efficient standards, and conforms to 10 CFR Part 431 requirements, underscoring compliance and energy performance. For OEMs and maintenance teams, the combination of aluminum windings, a FR940 frame, and a NEMA 2 enclosure delivers dependable operation with lower lifecycle costs, while supporting floor or wall installation and scalable power distribution.
Product Information
Extended Description
N48M28T2516 Eaton: Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR940, 60 Hz, 220°C, 25 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 150°C, 25 kVA, 480 Vac-208Y/120 Vac, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T2516
UPC
786680220357
Product Length/Depth
21.13 in
Product Height
36.77 in
Product Width
24.86 in
Product Weight
416 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
Aluminum
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
FR940
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
25 kVA
Volt ampere rating
25 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Sound Level
NEMA ST-20
Temperature rise
150 °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
WS58
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Eaton Specification Sheet - N48M28T2516
Feature → Business Impact → ApplicationThe N48M28T2516 uses aluminum windings in a rugged FR940 frame to reduce resistive losses and heat buildup, delivering a measurable efficiency uplift and longer service life for high-cycle applications in manufacturing lines and distribution panels. This supports cost-per-kilowatt-hour reductions and improved uptime in automated processes.K-Factor 13 nonlinear design enhances harmonic management, enabling cleaner power delivery and reduced electrical noise on sensitive automation equipment, which translates to fewer disturbances on CNCs, robotics, and PLC-controlled lines.DOE 2016 efficiency compliance and UL Listed certification provide regulatory assurance and procurement confidence, helping maintenance budgets meet energy- and safety-related targets while simplifying supplier validation for energy programs and audits.A 25 kVA, three-phase configuration with 480 V primary and 208Y/120 V secondary supports standard industrial feeders, enabling plug-and-play compatibility with existing switchgear and MCCs and minimizing field rework during retrofits or expansions.The 150 °C temperature rise, 220 °C insulation, and 60 Hz rating give engineers a robust, weatherized option for light-industrial environments, reducing overdesign and enabling tighter space planning in control rooms and near machine lines.
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FAQs
The N48M28T2516 is a three-phase transformer with a 25 kVA rating, suitable for 480 V primary and 208Y/120 V secondary. It can be floor- or wall-mounted and uses a NEMA 2 enclosure with FR940 frame, making it compatible with standard industrial switchgear, MCCs, and control panels while fitting into tight plant spaces.
Key specs include 25 kVA apparent power, 60 Hz frequency, primary 480 V, secondary 208Y/120 V, three-phase configuration, aluminum windings, 150 °C rise, and 220 °C insulation. The unit also features a K-Factor 13, electrostatic shield, and DOE 2016 efficiency alignment, supporting efficient and compliant operation.
Yes. With a robust 25 kVA capacity, clean 480 V to 208Y/120 V conversion, and a K-Factor 13 design, it is well-suited for factory automation, robotics, and PLC-driven lines. The NEMA 2 enclosure and aluminum windings help reduce maintenance, while UL listing and DOE efficiency support compliant and reliable automation power feeds.
The N48M28T2516 is UL Listed and complies with DOE 2016 efficiency requirements. It also aligns with 10 CFR Part 431 (2016 Efficient) for energy performance. These certifications help with procurement approvals, energy program reporting, and regulatory compliance during audits.
Plan for floor or wall mounting in a space with adequate clearance around the NEMA 2 enclosure. Expect aluminum windings, a FR940 frame, and a 416 lb weight to influence handling and rack space planning. Regular maintenance should focus on enclosure integrity, oil-free ventilation (ventilated design), and verifying tap settings for -2.5% and +2.5% adjustments.