Eaton N48M28T55EECS Nonlinear Transformer - 500 kVA
Part Number: N48M28T55EECS
Quick Summary
Eaton N48M28T55EECS is a nonlinear ventilated transformer designed for heavy-duty power distribution in industrial facilities. Engineers often battle harmonic distortion, overheating, and regulatory compliance when scaling three-phase systems; this unit provides stable voltage with reduced losses. Certifications and compliance details are provided by the manufacturer; confirm CE/UL readiness and other regional approvals, while noting NEMA TP-1 efficiency. By integrating this transformer, you gain predictable performance and long-term cost savings, with proven compatibility for 480 V primary and 208Y/120 V secondary configurations, supporting reliable uptime in demanding environments.
Product Information
Extended Description
N48M28T55EECS 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, 500 kVA, EE, CS
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T55EECS
UPC
786680111761
Product Length/Depth
42.65 in
Product Height
90 in
Product Width
69.26 in
Product Weight
4829 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
Contact Manufacturer
Catalog Notes
NEMA TP-1 efficient.
Coil material
Aluminum
Wiring connection
447A
Type
Nonlinear ventilated transformer
Frame
922
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
500 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatic copper shield
Weathershield
WS36
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T55EECS
Feature KT-13 K-Factor nonlinearity → Business Impact Improved harmonic control reduces losses and improves overall power quality, lowering thermal stress on connected equipment. Application Ideal for manufacturing lines and data centers where non-linear loads are prevalent. The transformed system remains stable under varying load conditions. Feature Dual voltage taps (+2.5% / -2.5%) → Business Impact Precise voltage regulation minimizes equipment derating and improves process stability. Application Critical in facilities with fluctuating supply and strict tolerance requirements. Feature Aluminum coil windings → Business Impact Cost-effective and lighter construction can reduce installation handling and shipping costs. Application Suitable for large-scale installations where ease of field routing and assembly are advantageous. Feature 150 °C rise insulation → Business Impact Higher thermal margin supports sustained operation in hot environments, reducing cooling loads. Application Industrial environments with limited ambient cooling capacity. Feature Electrostatic copper shield → Business Impact EMI/RFI protection and improved fault isolation enhance system reliability. Application Data centers and manufacturing lines requiring stringent shield performance. Feature WS36 weather shield → Business Impact Outdoor or harsh environments with improved weather resistance, extending service life. Application Outdoor equipment rooms or exposed installations. Feature NEMA TP-1 efficient → Business Impact Energy efficiency lowers operating costs and supports sustainability goals. Application Compliance‑driven projects and OEM integrations. Warranty 1 year from installation or 18 months from shipment whichever occurs first → Business Impact Warranty coverage lowers total cost of ownership and risk. Application Asset management and procurement planning benefit from clear coverage terms.
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FAQs
The N48M28T55EECS is designed for 3-phase operation with a 480 V primary and 208Y/120 V secondary. It provides taps at +2.5% and -2.5% to adjust voltage under load variations. This enables tighter voltage regulation across typical industrial loads and data center equipment, helping to maintain performance without oversizing protection or transformers.
KT-13 K-Factor nonlinearity characterizes the transformer’s ability to handle non-linear loads and harmonic currents. A higher K-Factor indicates better mitigation of harmonics and reduced neutral conductor heating. For systems with significant nonlinear loads, this transformer delivers cleaner voltages, improved efficiency, and longer equipment life.
Yes, the N48M28T55EECS is suitable for data centers and manufacturing facilities requiring reliable power distribution and harmonic management. Consider room layout for the 69.26 in width, 42.65 in depth, and 90 in height footprint, plus access for installation and maintenance. The unit uses aluminum windings, a 150 °C rise rating, and WS36 weather shielding for adaptable indoor or outdoor installation in appropriate enclosures.
Certifications for this model are listed as 'Contact Manufacturer' in the data, so verification should be performed directly with Eaton for your region. Expect discussions around CE/UL listings and local compliance as part of project documentation, along with confirming NEMA TP-1 efficiency as part of energy-performance compliance.
The warranty is one year from installation or eighteen months from shipment, whichever occurs first. This protects against manufacturing defects and supports budgeting for preventive maintenance. Regular checks on insulation health, cooling adequacy, and protective shielding help maximize uptime and reduce unplanned downtime in high-demand environments.