Eaton N48M28T49EESR Nonlinear Transformer - TP-1 Efficient
Part Number: N48M28T49EESR
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer provides reliable power conditioning for demanding industrial electrical systems in control panels and plants. Harmonics and heat are common pain points in large installations, driving downtime and higher maintenance costs. Two important validations support its performance: NEMA TP-1 efficient certification and a certified sound level report, with additional certifications available from the manufacturer. Designed for industrial power management, it delivers dependable voltage transformation for 480 V primary and 208Y/120 V secondary systems while supporting energy efficiency goals. Its rugged construction and weather-ready features help reduce lifecycle costs and simplify procurement across plant floors and panel shops. The result is improved uptime, predictable maintenance, and scalable performance as load grows.
Product Information
Extended Description
N48M28T49EESR 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, 150 kVA, EE, SR
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T49EESR
UPC
786680111716
Product Length/Depth
24.67 in
Product Height
56.17 in
Product Width
31.44 in
Product Weight
1187 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 Certified sound level report.
Coil material
Aluminum
Wiring connection
292A
Type
Nonlinear ventilated transformer
Frame
917
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T49EESR
Feature → Business Impact → Application: The N48M28T49EESR deploys a K-Factor nonlinear ventilated design, delivering improved harmonic handling and thermal management that reduce overheating in high-load industrial systems. This translates to higher uptime in manufacturing cells and critical control panels where stable voltage is essential. Application: control panels, machine centers, and distribution rooms demanding reliable power conditioning. Feature → Business Impact → Application: Two taps are available at +2.5% and four taps at -2.5%, enabling precise voltage regulation to minimize dips during startup and peak load periods. Application: facilities with variable loads and sensitive equipment. Feature → Business Impact → Application: Aluminum coil construction and 292A wiring connection provide durable, corrosion-resistant windings with low resistance, increasing efficiency and long-term reliability. Application: outdoor or semi-exposed installations with aggressive environments. Feature → Business Impact → Application: Electrostatic shielding and WS34 weather shield option enhance EMI suppression and outdoor resilience, reducing radiated noise and maintenance needs. Application: outdoor transformer installations in harsh environments. Feature → Business Impact → Application: 150 kVA three-phase rating and 60 Hz operation support scalable power distribution for mid-sized plants and data-driven manufacturing lines. Application: iso-energetic distribution in modern facilities. Feature → Business Impact → Application: The unit’s dimensions and frame (917) plus weight (1187 lb) enable specification-aligned installation planning and crane-ready installation in electrical rooms. Application: system retrofits and new builds with space and lifting considerations. Feature → Business Impact → Application: NEMA TP-1 efficiency certification and verified sound level reporting help with compliance, budgeting, and procurement cycles. Application: regulated industries seeking documented performance and quieter operation.
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FAQs
This is a three-phase transformer rated at 150 kVA with a 480 V primary and 208Y/120 V secondary, designed for standard electrical rooms or dedicated transformer spaces. Its frame 917 and weight of 1187 lb require proper lifting and clearance for ventilation, service access, and connection to 292A wiring. Plan for crane access or palletized installation and verify adequate external clearances per site electrical codes.
Key specs include 60 Hz operation, 150 kVA VA rating, primary 480 V, secondary 208Y/120 V, and tap settings of two at +2.5% and four at -2.5%. The unit uses aluminum windings with electrostatic shielding and supports a 150 °C rise with 200 °C insulation system. It is designed as a nonlinear ventilated transformer for improved harmonic handling.
Yes, with the WS34 weather shield option and its electrostatic shielding, the N48M28T49EESR is suitable for outdoor or rugged indoor installations. The aluminum coil and IK-rated frame contribute to durability, while the weather shield protects windings from moisture and contaminants, helping maintain performance in challenging environments.
Two key validations are highlighted: NEMA TP-1 efficiency certification and a certified sound level report. Additional certifications are available upon request from the manufacturer, enabling you to meet site-specific regulatory requirements and procurement standards.
The 150 kVA K-Factor nonlinear design improves harmonic handling and reduces overheating, contributing to higher uptime and lower maintenance costs over the life of the transformer. A 1-year warranty (or 18 months from shipment) provides initial protection, while robust construction supports long service intervals in demanding industrial settings.