Eaton N48M28T45CU K-Factor nonlinear ventilated transformer - UL Listed
Part Number: N48M28T45CU
Quick Summary
Eaton K-Factor nonlinear ventilated transformer reduces harmonic distortion for industrial power systems. This 45 kVA, three-phase device is designed to protect sensitive equipment across manufacturing lines, data centers, and automation cells. The need to tame harmonics is a common, costly challenge—voltage fluctuations, unnecessary trips, and shortened component life often stem from non-linear loads. This model carries UL Listed safety certification and features copper windings with an electrostatic shield for reliable, long-term performance. Its ventilated design and frame 915D support installation in space-constrained electrical rooms, while voltage taps enable on-site voltage optimization. With WS39 weather shield compatibility and a 150°C rise tolerance, it offers robust operation in demanding environments, helping maintenance teams meet uptime and efficiency targets.
Product Information
Extended Description
N48M28T45CU 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, 150°C, 45 kVA , Cu windings, Elec. Shield, Frame: 915D
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T45CU
UPC
786680105326
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
605 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
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T45CU
Feature: 45 kVA three-phase K-Factor transformer. Business Impact: delivers reliable power conditioning for harmonic-heavy loads, improving equipment uptime and process consistency. Application: automation cells, machine tooling, and mid-scale distribution panels. The result is steadier voltage, reduced nuisance tripping, and extended module life. Keyword relevance: three-phase transformer, harmonic mitigation, power conditioning. Feature: Primary 480 V with Secondary 208Y/120 V. Business Impact: simplifies integration with common facility power architectures, reducing the need for additional step-down gear and enabling quicker installations. Application: plant power distribution and control systems in manufacturing facilities. Feature: Tap changer options with +2.5% and -2.5% adjustments. Business Impact: voltage optimization under load swings, minimizing voltage drop and protecting sensitive electronics. Application: feeders with varying load profiles and long feeders to critical equipment. Feature: Copper windings and electrostatic shield. Business Impact: enhances thermal and electrical performance, lowers EMI, and improves reliability in noisy industrial environments. Application: control panels and process automation where clean signals are essential. Feature: Ventilated design, 150°C rise, WS39 weather shield option. Business Impact: robust operation in hot, dusty, or outdoor-adjacent spaces, enabling outdoor installations and easier enclosure planning. Application: manufacturing floors, outdoor equipment cabinets, and harsh facilities. Feature: Frame 915D, dimensions 22 in L × 39 in H × 29 in W, weight 605 lb. Business Impact: defined footprint supports accurate space planning and safer, easier installation. Application: retrofit projects and new builds requiring precise enclosure compatibility and mounting clearances. Feature: UL Listed certification. Business Impact: simplifies procurement and regulatory compliance for safety-conscious facilities. Application: any industrial setting prioritizing recognized safety standards.
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FAQs
The unit is a three-phase 45 kVA transformer with frame 915D and dimensions of 22 in x 39 in x 29 in, weighing 605 lb. Plan for adequate ventilation, accessible clearances, and secure mounting. If outdoor or dusty environments are present, WS39 weather shield compatibility is recommended to enhance protection. Preparation should include appropriate cable routing, torque specifications for taps, and proximity to control panels to minimize voltage drop.
The N48M28T45CU employs K-Factor nonlinear design and copper windings with an electrostatic shield to mitigate harmonic currents. Its tap settings (+2.5% and -2.5%) allow voltage optimization under varying load, reducing voltage distortion and improving downstream equipment performance. This makes it well-suited for active front ends, VFDs, and other non-linear loads common in automation and manufacturing settings.
This transformer is UL Listed, indicating compliance with recognized safety standards for electrical equipment. While UL Listed is documented, CE or IP ratings are not specified in the provided data. For projects requiring additional certifications, confirm with Eaton or the distributor prior to procurement.
The transformer provides a 480 V primary and a 208Y/120 V secondary, 60 Hz, three-phase. It is typically used to feed motor drives, control systems, and instrumentation from mainstream distribution panels, supporting harmonics-sensitive equipment by delivering stable, conditioned power to sensitive loads in industrial facilities.
Warranty terms follow Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. For field support, reference documentation includes the Eaton specification sheet and catalog resources, and Eaton technical support can assist with installation guidance, compatibility checks, and technician-led commissioning if required.