Eaton N48M28B22EELS52 Transformer - UL Listed
Part Number: N48M28B22EELS52
Quick Summary
The Eaton K-Factor nonlinear ventilated transformer reliably steps down 480 V three-phase power for sensitive equipment in industrial facilities. Engineers often contend with cooling limits, audible noise, and efficiency trade-offs in large installations. This unit is UL Listed and NEMA TP-1 compliant, delivering low sound emissions and robust performance under load. Its 225 kVA rating with 480 V primary and 208Y/120 V secondary provides flexible distribution for a broad range of applications. With attention to installation efficiency and lifecycle costs, it helps improve uptime while meeting demanding regulatory and safety standards.
Product Information
Extended Description
N48M28B22EELS52 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, 225 kVA, EE, LS, 52
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B22EELS52
UPC
786680045684
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
2350 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, Low sound equal to 52 dB
Coil material
Aluminum
Frame
919E
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
80 °C rise
Modification 1
Low sound 52 dB
Special features
Electrostatically Shielded
Weathershield
WS35
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B22EELS52
Feature: K-Factor nonlinear design with ventilated cooling is engineered to handle non-linear loads common in industrial environments. Business Impact: Reduces overheating risk and maintains voltage stability under dynamic loading, improving equipment reliability. Application: Suitable for facilities with motor drives and reactors where harmonic currents are present. The advantage translates to fewer outages and longer equipment life. Feature: 225 kVA rating with 480 V primary and 208Y/120 V secondary provides a versatile distribution footprint. Business Impact: Enables a single transformer to feed multiple loads with varied voltage requirements, simplifying panel design and spare parts inventory. Application: Manufacturing lines and data centers needing scalable, centralized power distribution. Feature: +/−2.5% taps (2 at +2.5%, 4 at −2.5%) offer voltage regulation to protect sensitive electronics. Business Impact: Improves voltage quality and reduces downtime caused by voltage sags, lowering commissioning time. Application: End-user sites with critical control systems and PLCs. Feature: Aluminum coil, electrostatic shielding, and frame 919E contribute to robust construction and EMI protection. Business Impact: Lighter yet durable, with improved heat transfer and reduced electromagnetic interference, supporting compliant installations. Application: Outdoor or indoor switchgear rooms with mixed equipment. Feature: Weathershield WS35 and low sound specification of 52 dB deliver reliable performance in varied environments. Business Impact: Enables quieter operation near workspaces and better resilience to ambient conditions, reducing maintenance adjustments. Application: Plants with noise restrictions or outdoor enclosures. Feature: Compliance and warranty framework (UL Listed, NEMA TP-1 compliant, 1-year warranty from installation or 18 months from shipment). Business Impact: Simplifies procurement with clear regulatory alignment and predictable support, lowering total cost of ownership. Application: Projects requiring formal certification trails and long-term service planning.
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FAQs
This model weighs about 2350 lb and has a footprint with dimensions roughly 44.2 in wide by 75 in tall and 36.23 in depth. Mounting frame 919E supports secure installation in transformer rooms and switchgear sections. Ensure adequate clearance for ventilation, access to taps, and service clearance for routine maintenance.
The transformer delivers 225 kVA at 60 Hz with a 480 V primary and 208Y/120 V secondary. Voltage taps are available as 2 at +2.5% and 4 at −2.5%, enabling fine-tuning to maintain acceptable bus voltages under load fluctuations and harmonic distortion typical of motor drives.
Industrial facilities with mixed loads, including automated manufacturing lines, process control systems, and data centers, benefit from the K-Factor design's harmonic resilience, low-noise operation, and robust protection. Its three-phase configuration and high kVA rating support centralized power distribution with improved uptime and voltage stability.
The N48M28B22EELS52 is UL Listed and NEMA TP-1 compliant, which aligns with safety and efficiency standards in electrical installations. These certifications reduce risk during audits and support green-building initiatives when paired with its low-noise performance and energy-efficient operation.
With a 1-year warranty from installation (or 18 months from shipment) and a rugged aluminum-coil design, the transformer offers solid lifecycle value. Reduced cooling demands, lower noise, and reliable performance translate to less downtime, fewer spare parts, and predictable maintenance budgeting in tough industrial environments.