Eaton N48M28B1216 Transformer - K-Factor 13
Part Number: N48M28B1216
Quick Summary
The Eaton N48M28B1216 K-Factor nonlinear ventilated transformer provides robust, energy-efficient power isolation for industrial facilities. Facilities often struggle with heat, space constraints, and regulatory compliance in transformer installations. UL Listed, DOE 2016 efficiency per 10 CFR Part 431, and NEMA ST-20 sound ratings guide reliable performance. This rugged, floor- or wall-mounted transformer uses aluminum windings, a FR944 frame, and an electrostatic shield to minimize EMI while delivering 112.5 kVA of power for 480 V primary and 208Y/120 V secondary networks, making it a prime choice for modern low-voltage dry-type transformer deployments in manufacturing and data-center support rooms.
Product Information
Extended Description
N48M28B1216 Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR944, 60 Hz, 220°C, 112.5 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 80°C, 112.5 kVA, 480 Vac-208Y/120 Vac, WS61, 283B, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B1216
UPC
786680191893
Product Length/Depth
33.5 in
Product Height
60 in
Product Width
38 in
Product Weight
1607 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.
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
FR944
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
112.50 kVA
Volt ampere rating
112.5 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
WS61
Eaton's low-voltage dry-type distribution transformers
Eaton's low-voltage dry-type distribution transformers
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B1216
Selling Policy 25-000 - Distribution and Control Products and Services
K-Factor 13 nonlinear design improves harmonic handling under non-linear loads, decreasing overheating risk and extending transformer life. This yields lower lifecycle costs and greater uptime for critical machinery in manufacturing and processing plants. The N48M28B1216 is optimized for 60 Hz, 480 V input with 208Y/120 V secondary, supporting reliable operation in floor- or wall-mounted configurations. Aluminum windings reduce weight and improve heat dissipation, simplifying installation, improving serviceability, and enabling easier retrofits in crowded electrical rooms. The NEMA 2 enclosure provides indoor protection against dust and moisture in general plant environments, while the FR944 frame ensures compatibility with standard mounting footprints and accessory fitment. Tap settings of 2 at +2.5% and 4 at -2.5% allow precise voltage regulation to maintain secondary voltage under fluctuating loads. A full 112.5 kVA three-phase capacity at 60 Hz, with 480 V primary and 208Y/120 V secondary, supports critical distribution for multiple loads and aids in capacity planning. Electrostatic shield modification reduces EMI and improves short-term fault isolation, while WS61 weather shield and UL listing reinforce reliability in varied environments. This transformer is designed for floor- or wall-mounted installations, offering versatile placement in space-constrained facilities, data centers, and industrial electrical rooms, with DOE 2016 efficiency alignment helping to meet energy-management goals.
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FAQs
The N48M28B1216 is designed for versatile mounting on floors or walls with its FR944 frame. Plan for a well-ventilated indoor location (NEMA 2 enclosure) and provide adequate clearance for air flow and wiring access. Use the 283B wiring connection and ensure alignment with the 480 V primary and 208Y/120 V secondary conductors. Follow the manufacturer’s installation guide and local electrical codes for secure mounting, wiring, and protective conduit routing.
Primary voltage is 480 V with a secondary of 208Y/120 V. Tap settings are 2 at +2.5% and 4 at -2.5%, enabling voltage regulation under load to maintain the 208Y/120 V secondary within tolerance. This capability is beneficial in facilities with voltage drop across feeders or varying load profiles, helping protect downstream equipment and maintain performance.
Yes. The N48M28B1216 features a K-Factor nonlinear design (K-Factor 13) that improves harmonic handling, reducing overheating risk and EMI effects. This makes it well-suited for environments with non-linear loads such as VFDs, CNC machines, presses, and other automated equipment, contributing to longer transformer life and steadier power quality.
This model is UL Listed and complies with DOE 2016 efficiency standards per 10 CFR Part 431. It is also rated to the NEMA ST-20 sound standard and features an electrostatic shield to minimize EMI. These certifications support compliance for industrial facilities and data centers seeking reliable, energy-efficient power distribution.
With aluminum windings, a sturdy FR944 frame, and an electrostatic shield, the transformer delivers reliable performance with reduced maintenance in routine operation and EMI management. The 112.5 kVA rating supports scalable loads, while DOE 2016 efficiency reduces energy costs over time. Its rugged NEMA 2 enclosure and floor/wall mounting flexibility simplify installation and future reconfiguration, contributing to a favorable total cost of ownership.