Eaton N48D28B49EELS47 Transformer - UL Listed
Part Number: N48D28B49EELS47
Quick Summary
Eaton N48D28B49EELS47 Transformer is a three-phase K‑Factor nonlinear ventilated transformer for 480 V to 208Y/120 V service. Engineers often struggle with heat buildup, noise, and space constraints when upgrading legacy power systems. UL Listed, NEMA TP‑1 compliant, and low-sound operation under 47 dB help meet reliability, safety, and regulatory requirements in demanding environments. This unit delivers consistent voltage, protects critical loads, and supports scalable power distribution for industrial facilities. With 150 kVA capacity, 60 Hz operation, and adjustable taps, it integrates with standard electrical rooms and Eaton accessories to simplify installation and ongoing maintenance.
Product Information
Extended Description
N48D28B49EELS47 Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /2 at -2.5%, SV 208Y/120V, 80°C rise, 150 kVA, EE, LS, 47
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48D28B49EELS47
UPC
786680060755
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1611 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 47 dB
Coil material
Aluminum
Frame
918A
Tap size
2 at +2.5% FCAN, 2 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
80 °C rise
Modification 1
Low sound 47 dB
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48D28B49EELS47
Feature: K‑Factor nonlinear design improves harmonic control and reduces mains distortion. Business Impact: Enhances transformer efficiency and downstream equipment life, lowering total cost of ownership. Application: Ideal for factories with non-linear loads and computerized controls where power quality matters. Feature: 150 kVA rating with 480 V primary and 208Y/120 V secondary. Business Impact: Provides reliable, regulated power for critical drives and control systems, supporting uptime in production lines. Application: Suitable for manufacturing cells, machine tooling, and distribution panels in industrial facilities. Feature: Tap settings at 2 at +2.5% and 2 at -2.5%. Business Impact: Fine voltage regulation under feeder voltage swings, reducing nuisance tripping and equipment stress. Application: Large facilities with long feeders or variable utility voltage. Feature: Aluminum coil, frame 918A, temperature rise 80 °C. Business Impact: Lighter construction with robust cooling, enabling easier installation and durable operation in restricted spaces. Application: Indoor transformer rooms and retrofit projects. Feature: Low sound 47 dB, electrostatically shielded, and WS34 weather shield. Business Impact: Quiet operation supports colocated spaces and EMI protection minimizes interference with nearby electronics. Application: Plant rooms adjacent to offices, outdoor cabinets, and data-center perimeter installations. Feature: Compliance and warranty. Business Impact: Reduces risk with UL Listed, NEMA TP-1 efficiency, and a practical warranty that supports service planning. Application: Procurement for regulated environments and long-term maintenance planning.
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FAQs
Plan for ventilation and clearance around the 918A frame, ensure adequate ambient temperature control for the 80 °C rise rating, and accommodate the 1611 lb weight with proper hoisting. Verify 480 V primary and 208Y/120 V secondary connections, and align with the +2.5% / -2.5% tap options for voltage regulation. Use UL Listed, NEMA TP-1 compliant practices to simplify commissioning.
Key specs include 150 kVA three-phase, 60 Hz operation, 480 V primary, 208 Y/120 V secondary, and 80 °C rise. The unit features K‑Factor nonlinear design, aluminum coil construction, and a low sound level of 47 dB. Protection aligns with UL Listed and NEMA TP‑1 efficiency standards, ensuring reliable operation in industrial environments.
Yes. Its K‑Factor nonlinear design helps manage harmonics from non-linear loads typical in data centers and manufacturing floors. The 150 kVA rating supports critical loads, while 47 dB quiet operation and WS34 weather shielding enable placement in plant rooms or outdoor cabinets near sensitive equipment without excessive noise or EMI concerns.
The transformer is UL Listed and NEMA TP‑1 compliant, with low-sound performance and electrostatic shielding. These certifications support regulatory approvals, safer installation in regulated environments, and easier procurement through recognized industry approvals.
Warranty is one year from installation or 18 months from shipment, whichever occurs first, per Eaton policy. Regular maintenance should focus on connection integrity at the primary and secondary terminations, inspection of the aluminum windings, and verification of tap settings to maintain voltage accuracy, reducing unexpected downtime and extending service life.