Eaton N48M28T22EELS50 Transformer - K-Factor Nonlinear
Part Number: N48M28T22EELS50
Quick Summary
Eaton K-Factor nonlinear ventilated transformer powers 3-phase distribution with a 225 kVA rating and a 480 V primary, 208Y/120 V secondary. This design helps address harmonic-rich loads commonly found in modern automation and manufacturing environments. Certification status is region-specific; confirm current CE, UL/CSA, and IP options with Eaton to ensure site compliance. The N48M28T22EELS50 supports precise voltage regulation through taps and optimized cooling, delivering reliable power for control panels, drives, and auxiliary systems. In practice, this transformer enables scalable automation architecture while supporting efficient energy management and reduced downtime in industrial facilities.
Product Information
Extended Description
N48M28T22EELS50 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, 150°C rise w/ 200°C insulation systeam, 225 kVA, EE, LS, 50
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T22EELS50
UPC
786680135088
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Certifications
Contact Manufacturer
Volt ampere rating
225 kVA
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T22EELS50
Feature → Business Impact → Application: K-Factor nonlinear ventilated design mitigates harmonic stress, improving transformer life and reducing cooling demand in high-harmonic environments; this translates to lower maintenance costs and higher panel reliability in automated lines and data centers. The 225 kVA rating paired with a 480 V primary and 208Y/120 V secondary standardizes supply for motors, drives, and PLC-based automation across multiple cells, enabling faster panel assembly and consistent performance in manufacturing floors. Voltage taps provide +/- 2.5% adjustment across two positive and four negative positions, delivering precise regulation for sensitive loads and reducing nuisance trips in voltage-fluctuating facilities. A 150°C rise with a 200°C insulation system supports sustained operation in ventilated enclosures, improving uptime in tight spaces and reducing risk of thermal derating. Installation compatibility with KT-13 3-phase designs simplifies integration into existing power architectures, while ongoing compatibility with Eaton datasheets ensures engineers follow current best practices. Industry context shows that harmonic-mitigating transformers are increasingly favored in automation to meet efficiency mandates and regulatory expectations, lowering total cost of ownership over the asset lifecycle.
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FAQs
For proper installation, mount the N48M28T22EELS50 in a ventilated enclosure suitable for industrial environments. Ensure adequate clearance for cooling, utilize the 3-phase KT-13 configuration, and follow the primary 480 V / secondary 208Y/120 V connections exactly as shown in the Eaton datasheet. Use the voltage taps to trim +/- 2.5% where needed to maintain stable loads, and verify proper breaker sizing to accommodate a 225 kVA rating. Refer to Eaton’s catalog and installation guidelines for panel layout and wiring practices.
The K-Factor nonlinear design helps limit harmonic heating by providing a targeted impedance profile that mitigates harmonic currents. This reduces winding and insulation stress, lowers cooling requirements, and improves voltage regulation under non-linear loads such as variable-frequency drives. In practical automation settings, this translates to longer transformer life, fewer deratings, and more reliable operation of drives,PLC inputs, and other harmonic-sensitive equipment.
Certification status is listed as 'Contact Manufacturer' for this model, so verify regional approvals directly with Eaton. In many regions, transformers of this type are commonly offered with CE marking and UL/CSA certifications, but availability depends on the installation location and compliance requirements. Contact Eaton to obtain the current certificate documents and ensure your site meets local electrical codes and industry standards.
The unit provides a 480 V primary and a 208Y/120 V secondary. It includes voltage taps at two positions for +2.5% and four positions for -2.5%, enabling precise voltage regulation to accommodate line conditions, transformer loading, and connected equipment. This flexibility supports stable operation of automation panels and reliable motor and drive performance in variable supply scenarios.
Expect improved power quality with harmonic mitigation, reduced risks of voltage distortion affecting sensitive electronics, and greater panel reliability. The 225 kVA rating supports scalable automation deployments, while the taps and ventilated design enable stable operation in compact installations. Overall, the transformer can lower downtime, improve efficiency, and simplify procurement by aligning with common industrial power standards and installation practices.