Eaton N48M28B4516 K-Factor Nonlinear Ventilated Transformer NEMA 2
Part Number: N48M28B4516
Quick Summary
Eaton K-Factor nonlinear ventilated transformer powers three-phase industrial power distribution in control panels. Many facilities struggle with heat, energy waste, and inconsistent voltages that impact equipment life and uptime. UL Listed, DOE 2016 efficiency, and 10 CFR Part 431 compliance help you meet safety and energy regulations while reducing operating costs. With a 45 kVA rating, 480 V primary to 208Y/120 V secondary, and a compact FR942 frame, this transformer supports reliable, scalable installations in manufacturing, packaging, and process environments. Floor or wall mounting flexibility adds installation simplicity and space efficiency for crowded electrical rooms.
Product Information
Extended Description
N48M28B4516 Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR942, 60 Hz, 220°C, 45 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 80°C, 45 kVA, 480 Vac-208Y/120 Vac, WS60, 283B, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B4516
UPC
786680191879
Product Length/Depth
24 in
Product Height
43 in
Product Width
30.5 in
Product Weight
612 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
FR942
Insulation
220 °C
Mounting
Floor or wall
Tap size
2 at +2.5%, 4 at -2.5%
Frequency rating
60 Hz
Kva Rating
45 kVA
Volt ampere rating
45 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
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Eaton Specification Sheet - N48M28B4516
Feature → Business Impact → Application: K-Factor nonlinear design provides improved harmonic handling and reduced heat generation, boosting overall system reliability and extending component life in motor drives and automation panels. In practice this translates to fewer maintenance outages and lower cooling loads in harsh industrial environments. Application: machine controls, packaging lines, and process equipment where harmonics are a concern. Feature → Aluminum windings offer corrosion resistance and favorable weight-to-watt ratio, supporting easier handling during installation and potential lifecycle cost reductions. Application: OEM control cabinets and retrofit projects where reliability matters. Feature → 45 kVA rated, three-phase, 480 V to 208Y/120 V output delivers solid power conditioning for mid-size distributions, enabling stable operation of PLCs, drives, and sensing networks. Application: distribution panels and MCCs with moderate load. Feature → NEMA 2 enclosure provides robust indoor protection against dust and light moisture, reducing enclosure-related downtime. Application: plant floors, electrical rooms, and chemical-free environments with standard indoor conditions. Feature → Tap sizes of 2 at +2.5% and 4 at -2.5% allow on-site voltage adjustment to compensate line fluctuations, reducing voltage-related equipment stress. Application: site tweaks during commissioning and routine maintenance. Feature → DOE 2016 efficiency and 10 CFR Part 431 compliance verify energy performance, helping facilities meet sustainability targets and potential incentive programs. Application: energy management initiatives and green retrofit projects. Feature → Electrostatic shield modification and K-factor 13 feature enhance performance in high-harmonic environments, supporting cleaner power delivery to sensitive equipment. Application: PLCs, servo drives, and CNC controls requiring stable input power.
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FAQs
The N48M28B4516 is a three-phase transformer with a 480 V primary and a 208Y/120 V secondary. Wiring uses the 283B connection scheme, and the unit supports voltage tuning with taps of +2.5% and -2.5% to accommodate line fluctuations on site, facilitating stable downstream equipment voltage without external regulators.
Yes. The transformer carries UL Listed certification and aligns with DOE 2016 efficiency requirements as indicated by its 10 CFR Part 431 efficiency designation, helping your facility meet safety, energy, and regulatory targets while preserving performance and reliability in industrial applications.
Absolutely. The unit is designed for floor or wall mounting to maximize space utilization in tight electrical rooms. With a compact FR942 frame and protective NEMA 2 enclosure, it integrates into existing layouts while maintaining accessible service clearances and straightforward wiring for maintenance.
The 45 kVA, three-phase transformer suits machine controls, motor drives, and distribution panels in manufacturing, packaging, and process industries. Its K-Factor nonlinear design helps manage harmonics from drives, while the aluminum windings and enhanced insulation support durability in demanding environments.
Expect improved energy efficiency, reduced cooling loads, and lower life-cycle costs due to DOE 2016 efficiency and aluminum winding benefits. The unit’s electrostatic shield, WS60 weather shield, and NEMA 2 enclosure contribute to reliability and lower maintenance needs, backed by a one-year Eaton warranty and UL safety certification.