Eaton N48M28B3016 Transformer - UL Listed
Part Number: N48M28B3016
Quick Summary
Eaton N48M28B3016 is a high-efficiency, K-Factor nonlinear ventilated transformer for industrial power distribution. It helps electrical systems stay cooler and more reliable under heavier load by using aluminum windings and an optimized FR942 frame. Engineers often wrestle with heat, noise, and compliance when upgrading mains transformers, and this unit is designed to ease those challenges. The product carries UL Listed safety certification and aligns with DOE 2016 efficiency requirements, supporting regulatory readiness in demanding facilities. With a NEMA 2 enclosure, floor or wall mounting, and rugged construction, it fits retrofit projects and new installations alike. The design also emphasizes energy efficiency and a compact footprint for modern electrical rooms.
Product Information
Extended Description
N48M28B3016 Eaton: Eaton Eaton K-Factor nonlinear ventilated transformer, Aluminum windings, NEMA 2, FR942, 60 Hz, 220°C, 30 kVA , Three-phase, 480 Delta V, 208Y/120 Vac, NEMA ST-20, 80°C, 30 kVA, 480 Vac-208Y/120 Vac, DOE 2016
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B3016
UPC
786680191817
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
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
Weathershield
WS58
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Eaton Specification Sheet - N48M28B3016
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The K-Factor nonlinear design improves efficiency under harmonics-heavy loads, reducing energy losses and heat generation, which translates to lower operating costs and extended equipment life in manufacturing cells and packaging lines. Application: ideal for industrial facilities requiring dependable power distribution with tighter thermal management. Feature → Business Impact → Application: Aluminum windings reduce overall weight and material cost while maintaining strength, enabling easier installation and maintenance in crowded electrical rooms. Application: suitable for retrofit projects where weight and space are critical considerations. Feature → Business Impact → Application: 30 kVA three-phase rating with a 480 V primary and 208Y/120 V secondary supports medium-load distribution across multiple production lines with minimal voltage drop. Application: aligns with mid-sized plant power rails and control panels. Feature → Business Impact → Application: NEMA 2 enclosure provides robust indoor protection against dust and moisture, reducing site prep and enclosure-specific installation time. Application: ideal for factory floors and utility rooms in temperate environments. Feature → Business Impact → Application: Tap changes at +2.5% and -2.5% offer precise voltage regulation, reducing equipment misoperation and improving control loop stability. Application: supports sensitive automation and PLC-driven processes. Feature → Business Impact → Application: FR942 frame and 220 °C insulation deliver durable performance in demanding environments, with long service life and improved uptime. Application: suitable for continuous operation in rugged industrial spaces. Feature → Business Impact → Application: Electrostatic shield and additional features like WS58 weather shield (where applicable) help mitigate EMI and environmental stress, ensuring consistent transformer performance. Application: beneficial for proximity to high-power equipment and outdoor-adjacent installations in covered spaces.
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FAQs
The N48M28B3016 uses a NEMA 2 enclosure and supports floor or wall mounting, streamlining installation in standard electrical rooms. Its dimensions (roughly 24 in depth, 43 in height, 30.5 in width) and weight (about 612 lb) influence rack and space planning, while 283B wiring connection simplifies wiring with existing Eaton and third-party devices.
This is a three-phase transformer rated at 30 kVA with a 60 Hz frequency, primary voltage of 480 V, and secondary of 208Y/120 V. Voltage taps are available at 2 at +2.5% and 4 at -2.5%, and insulation is rated to 220 °C. The unit is UL Listed and designed for efficient operation under DOE 2016 standards.
Yes. The N48M28B3016 is purpose-built for mid-size industrial power distribution, delivering 30 kVA across a 480 V primary to 208Y/120 V secondary. Its K-Factor design and ventilated cooling improve performance under harmonics and higher loads, making it a robust choice for manufacturing lines, process automation, and control panels.
The unit is UL Listed for safety and complies with DOE 2016 efficiency requirements (10 CFR Part 431). These certifications support regulatory compliance, reduce risk in procurement, and align with energy-performance expectations for modern facilities.
Expect lower energy losses due to high efficiency and K-Factor optimization, which translate to cost savings over time. The aluminum windings, robust FR942 frame, and NEMA 2 enclosure minimize wear, while the UL listing and DOE 2016 compliance reduce risk and compliance costs. Regular checks of insulation and tap positions help sustain performance and uptime.