Eaton N48M28B45CU Transformer - UL Listed K-13
Part Number: N48M28B45CU
Quick Summary
Eaton N48M28B45CU is a K-Factor nonlinear ventilated transformer used for reliable power conditioning in three-phase industrial facilities. In demanding plants, load transients and harmonic currents can stress equipment and shorten component life; this transformer helps stabilize voltage and improve system resilience. It carries UL Listed safety certification, supports an 80°C rise, and features electrostatically shielded construction to minimize EMI. The copper-winding design and robust frame enable long service life in challenging environments. With a 45 kVA rating and primary 480 V feeding a 208Y/120 V secondary, it integrates into standard power-distribution schemes and offers programmable taps for voltage compensation. These characteristics translate to lower maintenance costs, better uptime, and scalable capacity for future expansions.
Product Information
Extended Description
N48M28B45CU 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, 80°C, 45 kVA , Cu windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B45CU
UPC
786680105777
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
575 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
915D
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B45CU
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear design reduces harmonic currents in non-linear loads. Business Impact: lowers transformer copper losses, improves power quality, and extends equipment life. Application: data centers, motor drives, and high-density control panels benefit from quieter operation and reduced cooling demand. Feature: Tap changes with 2 at +2.5% FCAN and 4 at -2.5% FCBN. Business Impact: precise voltage regulation under varying load conditions, minimizing secondary undervoltage or overvoltage events. Application: critical manufacturing lines and process controls requiring stable voltages. Feature: Copper windings and 80°C rise rating. Business Impact: enhanced thermal performance and durability under heavy-load conditions; supports continuous operation in warm environments. Application: industrial facilities with limited cooling capacity and demanding duty cycles. Feature: Ventilated frame 915D with WS39 weather shield. Business Impact: improved cooling efficiency and environmental protection, enabling reliable outdoor or harsh indoor installation. Application: electrical rooms, outdoors, and production floors with ambient heat. Feature: Electrostatic shielding and UL Listed certification. Business Impact: EMI reduction and verified safety compliance streamline audits and installation approvals. Application: healthcare-adjacent equipment rooms, data centers, and campus electrical distributions.
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FAQs
Yes. The unit is designed for a 480V primary and 208Y/120V secondary, delivering 45 kVA in a three-phase configuration. Its taps (+2.5% FCAN and -2.5% FCBN) enable voltage compensation to maintain steady secondary voltage under fluctuating load conditions.
The K-Factor nonlinear design absorbs and mitigates harmonic currents generated by non-linear loads, reducing peak demand, lowering copper losses, and improving overall power quality. This translates to cooler operation, longer equipment life, and fewer nuisance tripping events in data centers and automated facilities.
Yes. The N48M28B45CU uses a ventilated design with a frame size of 915D and an 80 °C rise rating, enabling reliable performance in warmer rooms. The WS39 weather shield also provides environmental protection for outdoor or semi-outdoor installations where space and cooling are constrained.
It carries UL Listed safety certification for compliance and safety. Warranty terms are Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first, helping to reduce ownership risk.
The transformer weighs about 575 lb with dimensions of roughly 22 in (L), 39 in (H), and 29 in (W). It uses copper windings and supports standard three-phase primary/secondary connections, making integration with typical panel boards and distribution equipment straightforward.