Eaton N48M28B37CUEE - K-Factor Transformer UL Listed
Part Number: N48M28B37CUEE
Quick Summary
The N48M28B37CUEE is a K-Factor nonlinear ventilated transformer for industrial power distribution, providing a robust 480 V to 208Y/120 V service. In automated plants, voltage fluctuations and heat from non-linear loads can trigger faults and downtime, making reliable power conditioning essential. UL Listed and NEMA TP-1 compliant, it features copper windings and an 80°C rise, engineered for rugged environments. For engineers and procurement teams, the copper-wound construction, 37.5 kVA rating, and practical taps support faster panel integration, improved voltage stability, and predictable performance across automation projects. This combination delivers durable service in control cabinets, machine lines, and distributed power architectures.
Product Information
Extended Description
N48M28B37CUEE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 80°C rise, 37.5 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B37CUEE
UPC
786685354743
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
533 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
Nema TP-1 efficient
Coil material
Copper
Frame
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
37.5 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B37CUEE
Feature: K-Factor nonlinear operation mitigates harmonic heating and voltage distortion. Benefit: reduces loss spikes, extends equipment life, and improves overall efficiency in dynamic industrial loads. Application: automation panels with mixed-frequency drives and PLCs where clean power is critical. Feature: Adjustable taps (+2.5%, -2.5%). Benefit: precise voltage regulation to match bus conditions, decreasing nuisance trips and equipment stress. Application: systems with fluctuating line voltage or variable loads. Feature: 480 V primary / 208Y/120 V secondary, three-phase, 60 Hz. Benefit: seamless integration with common facility electrical distributions and control systems. Application: plant-wide power conditioning in manufacturing and process automation. Feature: Copper windings and 80°C rise. Benefit: high thermal tolerance and lower copper loss, improving reliability in hot environments. Application: service in workshops, outdoor panels, and K-rated installations. Feature: Electrostatic shielding and WS38 weather shield option. Benefit: EMI reduction and outdoor/harsh-environment protection, lowering enclosure cooling needs. Application: outdoor control panels and outdoor substations. Feature: Frame 912B and robust construction with NEMA TP-1 efficiency notes. Benefit: straightforward rack mounting and compliant installation in industrial spaces. Application: OEM equipment, machine builders, and retrofit projects.
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FAQs
Installation should begin with verifying 480 V primary and 208Y/120 V secondary wiring, then secure the unit in a ventilated enclosure using the 912B frame mounting points. Connect copper windings with proper torque to TOC spec, set taps to account for expected voltage drift (+2.5% or -2.5%), and ensure adequate clearance for cooling. Use proper grounding and confirm UL Listed compliance during commissioning. Include the WS38 weather shield if exposure to harsh environments is anticipated.
Key specs include 37.5 kVA rated transformer, three-phase configuration, primary 480 V, secondary 208Y/120 V, 60 Hz frequency, 80 °C rise, copper windings, and tap changes of +2.5% / -2.5%. The product is UL Listed and NEMA TP-1 compliant, with a rugged frame 912B and a 37.5 kVA service suitable for automation panels and industrial power distribution.
Yes, the N48M28B37CUEE is designed for dependable automation power conditioning. Its K-Factor design manages harmonic loads, copper windings minimize losses, and the 80 °C rise supports steady operation in demanding environments. UL Listed and NEMA TP-1 compliant, it integrates with control cabinets and machine lines while providing reliable voltage regulation and EMI resilience.
This transformer is UL Listed and NEMA TP-1 compliant, signaling adherence to safety, performance, and efficiency standards for electrical equipment. UL Listing confirms product safety for electrical installations, while NEMA TP-1 ensures efficiency and performance in low-voltage distribution. These certifications simplify regulatory approvals and support reliable operation in industrial automation environments.
ROI comes from reduced downtime, improved voltage stability, and lower maintenance costs due to higher reliability under nonlinear loading. The copper windings and robust 80 °C rise rating enhance longevity, while taps enable near-site voltage tuning. Regular inspection, confirm wiring torque, and maintain enclosure cooling; uptime improves with UL/NEMA TP-1 compliant equipment in productive automation lines.