Eaton N48M28F49CU Transformer - UL Listed, K-13
Part Number: N48M28F49CU
Quick Summary
The Eaton N48M28F49CU transformer delivers K-Factor nonlinear, ventilated power conditioning for industrial facilities. This unit addresses harmonic-rich loads that push standard transformers toward overheating and efficiency losses, offering robust protection and predictable operation. With a 150 kVA rating, three-phase construction, and a 480 V primary feeding 208Y/120 V secondary, it handles variable factory loads with confidence. The design features copper windings, an electrostatic shield, and Weathershield WS34 for demanding environments, and it’s UL Listed for regulatory compliance. For procurement teams, the combination of a precise tap set and a defined temperature rise supports easier spec compliance, faster installation, and long-term maintenance planning while improving overall system reliability.
Product Information
Extended Description
N48M28F49CU Eaton: K-Factor nonlinear ventilated transformer K-13, Three-phase, PV: 480V, Taps: 2 at 0.025 FCAN, 4 at -0.025 FCBN, SV: 208Y/120V, 115°C, 150 kVA , Cu windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F49CU
UPC
786680371257
Product Length/Depth
24.67 in
Product Height
56.17 in
Product Width
31.44 in
Product Weight
1640 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
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
917
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F49CU
Feature → Business Impact → Application: The K-Factor nonlinear design and ventilated construction reduce harmonic stress and thermal buildup, improving energy efficiency and extending transformer life in high-harmonic environments. This supports mission-critical loads in manufacturing lines and drives systems where consistent voltage is essential. Feature → Business Impact → Application: Copper windings paired with an electrostatic shield provide superior EMI/RFI control, enabling sensitive controls and drives to operate with reduced interference and downtime. Use this in motor control centers and automation racks where clean power quality matters. Feature → Business Impact → Application: Weathershield WS34 and UL Listed certification ensure reliable operation in challenging environments and regulatory compliance, minimizing protection gaps during audits and in outdoor installations. Feature → Business Impact → Application: Tap settings of 2 at +2.5% FCAN and 4 at -2.5% FCBN allow precise voltage regulation, stabilizing downstream equipment and reducing voltage-related equipment stress in dynamic production lines. Feature → Business Impact → Application: A 150 kVA, 480 V to 208Y/120 V three-phase profile with 60 Hz compatibility delivers scalable power conditioning for data centers, batch processing, and mixed-load facilities, simplifying system architecture and procurement. Feature → Business Impact → Application: Copper windings and a robust copper-to-foil design deliver lower resistance losses, improved efficiency, and reduced operating costs over the life of the transformer, supporting total cost of ownership improvements in industrial plants.
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FAQs
This is a three-phase transformer with a 480 V primary and 208Y/120 V secondary, designed for industrial installations. It weighs 1640 lb and measures 31.44 in wide by 56.17 in high by 24.67 in deep. Ensure a rated pad or floor mount, adequate clearance for ventilation, and proper electrical connections to accommodate the 2 at +2.5% FCAN and 4 at -2.5% FCBN taps.
Key specs include a 150 kVA rating, 60 Hz frequency, three-phase construction, 480 V primary, 208Y/120 V secondary, copper windings, an electrostatic shield, and a 115 °C rise. Taps provide voltage adjustment to help maintain bus stability under varying load, enhancing reliability in harmonic-rich environments.
Yes, the transformer is UL Listed, meeting regulatory requirements for safety and performance in industrial facilities. This certification supports compliance with code-based commissioning and reduces risk during audits and inspections.
Applications include motor drives, data centers, manufacturing automation, and facilities with harmonic mitigation needs. Its K-Factor nonlinear design, copper windings, and shielded construction help protect sensitive electronics and improve power quality in dynamic production environments.
Copper windings reduce resistive losses, while the electrostatic shield and WS34 weather shield enhance EMI protection and outdoor durability. The unit’s 1-year warranty (or 18 months from shipment, whichever comes first) and precise taps support predictable maintenance planning and potentially lower lifecycle costs through fewer outages and longer mean time between failures.