Eaton K-Factor nonlinear ventilated transformer N48M28B3016CULS45 - UL Listed
Part Number: N48M28B3016CULS45
Quick Summary
Eaton K-Factor nonlinear ventilated transformer is a high-efficiency three-phase solution for power distribution at industrial facilities. It helps address heat buildup and energy waste common with legacy transformers, delivering reliable voltage conversion with reduced operating costs. UL Listed and DOE 2016 Efficient compliant, plus a rugged NEMA 2 enclosure, provide confidence in harsh plant environments. With copper windings and a shielded design, this transformer supports consistent performance on demanding loads, while the 480 V to 208Y/120 V outputs enable seamless integration with existing panels. This model also aligns with procurement priorities like footprint predictability, installation versatility, and long-term total cost of ownership improvements, making it a strong fit for modern industrial power ecosystems.
Product Information
Extended Description
N48M28B3016CULS45 Eaton: Eaton K-Factor nonlinear ventilated transformer, Copper windings, NEMA 2, FR940, 60 Hz, 220C, 30 kVA, Three-Phase, 480 to 208Y/120, 80C rise, Shielded, DOE 2016, WS58, 283B, K13, 45 dB
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B3016CULS45
UPC
786680244315
Product Length/Depth
21.13 in
Product Height
36.88 in
Product Width
24.88 in
Product Weight
493 lb
Compliances
DOE2016 Efficient
Certifications
UL Listed
Catalog Notes
10 CFR Part 431 (2016) Efficient
Coil material
Copper
Enclosure
NEMA 2
Wiring connection
283B
Type
Energy-efficient ventilated transformer
Frame
940
Insulation
220 °C
Material
Copper windings
Mounting
Floor or wall, upright only
Tap size
2 at +2.5%, 4at -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
45 dB
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
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B3016CULS45
Selling Policy 25-000 - Distribution and Control Products and Services
Copper windings with 220 °C insulation minimize resistive losses and improve heat management, delivering measurable energy savings and longer winding life for continuous operation. The K-Factor 13 designation signals reduced harmonics impact on power quality, supporting sensitive controls and PLC systems while maintaining compliance with industry standards. A shielded electrostatic modification offers EMI/RFI protection, reducing interference with nearby instrumentation and improving sensor accuracy on busy factory floors. The FR940 frame and 60 Hz, three-phase configuration provide consistent, scalable performance for 30 kVA loads, enabling smooth upgrades in line with capacity planning. Winding connections at 283B and a defined tap size of +2.5% / -2.5% support precise voltage regulation and straightforward commissioning. The NEMA 2 enclosure and 45 dB sound level make installation in concrete basements or mezzanines feasible without excessive noise or protection concerns. DOE 2016 efficiency and UL Listed certification simplify compliance auditing and maintenance planning, while 480 V to 208Y/120 V voltages cover common industrial distribution schemes. Compatibility with floor or wall mounting and upright orientation streamlines retrofits and new builds alike, reducing installation time and risk.
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FAQs
Install the unit in upright orientation only, either on the floor or mounted to a wall, using designated mounting hardware. Ensure adequate clearance for ventilation, and connect wiring per 283B wiring standard. The rugged FR940 frame supports secure anchoring in commercial or industrial spaces, and the NEMA 2 enclosure provides basic protection against dust and moisture.
This is a three-phase, 30 kVA transformer with a 480 V primary and a 208Y/120 V secondary. It operates at 60 Hz and features copper windings, an 80 °C rise rating, and a 45 dB sound level. Tap size is +2.5% / -2.5%, supporting voltage regulation under varied loading conditions.
Yes. The transformer complies with DOE 2016 Efficient standards and is UL Listed, ensuring energy efficiency and adherence to critical safety regulations. These certifications simplify regulatory audits and provide assurance for long-term operation in industrial facilities.
The electrostatic shield reduces capacitive coupling and EMI/EMC interference with nearby control electronics and sensors, improving measurement accuracy and system stability. A 45 dB sound profile helps maintain a quieter environment on the shop floor, which is important for worker comfort and compliance with noise regulations in open manufacturing spaces.
Wiring uses the 283B connection standard, with a tap setting of +2.5% / -2.5% for voltage regulation. The unit is compatible with floor or wall mounting and is designed for upright installation, which simplifies retrofits in existing panels or new builds. Copper windings and a NEMA 2 enclosure support rugged environments, while DOE 2016 efficiency helps reduce operating costs over the life of the equipment.