Eaton N48M28B12EELS47 Transformer - UL Listed
Part Number: N48M28B12EELS47
Quick Summary
Eaton N48M28B12EELS47 is a K-Factor nonlinear ventilated transformer for three-phase power distribution in industrial facilities. Owners and engineers face harmonic loading, noise, and installation constraints that threaten uptime and efficiency. UL Listed, NEMA TP-1 compliant, and delivering an 80°C rise with low 47 dB sound, it handles demanding environments. With 112.5 kVA rating, 480 V primary, 208Y/120 V secondary, and adjustable taps, it optimizes performance while reducing lifecycle costs for mid-size facilities. This combination of rugged build and thoughtful protections aligns with procurement goals for reliability, compliance, and total cost of ownership.
Product Information
Extended Description
N48M28B12EELS47 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, 112.5 kVA, EE, LS, 47
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B12EELS47
UPC
786680045660
Product Length/Depth
24.67 in
Product Height
56.17 in
Product Width
31.44 in
Product Weight
1365 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
917
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
112.5 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 - N48M28B12EELS47
Feature → Business Impact → Application: The N48M28B12EELS47 uses a K-Factor nonlinear design to improve harmonic management, reducing overheating risk and enabling safer operation under distorted loads. This translates to higher system efficiency and longer transformer life in facilities with heavy non-linear equipment such as drives and power electronics. Application: data centers, manufacturing floors, and process plants where harmonic currents are common and reliability is critical. Feature → Business Impact → Application: Voltage taps (+2.5% and -2.5%) provide precise regulation, minimizing voltage drop and protecting downstream equipment during load swings. Application: critical motor drives and control systems in 480V-to-208Y/120V distribution schemes. Feature → Business Impact → Application: Aluminum coil construction and a robust frame (917) deliver lighter yet durable performance, improving installation handling and long-term maintenance. Application: retrofit projects and new builds where ease of handling matters. Feature → Business Impact → Application: 47 dB low-sound operation and electrostatic shielding reduce EMI/acoustic footprint, supporting installations near offices or open workspaces. Application: warehouses, data centers, and healthcare environments. Feature → Business Impact → Application: UL Listed and NEMA TP-1 compliant, plus a Weather Shield option WS34, ensure regulatory readiness and outdoor-ready installation. Application: outdoor substations and exposed environments requiring robust protection. Feature → Business Impact → Application: 112.5 kVA rating with 480 V to 208Y/120 V secondary supports scalable power distribution with reliable short-circuit and fault performance. Application: mid-size industrial facilities expanding capacity while maintaining electrical safety and performance.
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FAQs
Plan for a three-phase, 480 V input with a 208Y/120 V secondary, and account for a large footprint: 24.67 in deep, 56.17 in tall, 31.44 in wide, with a weight of 1365 lb. The unit uses a robust 917 frame and supports floor or dedicated stand mounting; ensure adequate clearance for ventilation and service access. Consider available WS34 weather shielding if outdoor or harsh environments are anticipated.
The dual taps enable precise voltage droop or boost under varying load conditions, helping maintain equipment within tolerance and reducing stress on motors and controls. This flexibility is particularly valuable during startup surges, long feeders, or where line voltage fluctuates, improving overall system stability.
Yes. The N48M28B12EELS47 is a K-Factor nonlinear design that mitigates harmonic effects, supports critical loads, and helps prevent overheating and EMI issues. Its 112.5 kVA rating at 60 Hz, plus aluminum windings and shielding options, makes it a resilient choice for harmonics-heavy environments such as data centers and mixed-load facilities.
It is UL Listed and NEMA TP-1 compliant, aligning with common industrial and electrical codes. The catalog notes highlight low-sound operation and an 80°C rise. Warranty terms are one year from installation or 18 months from shipment, whichever occurs first. Regular inspections should focus on cabinet integrity, cooling paths, and tap connections to preserve performance.
Benefits include improved efficiency from a K-Factor design, reduced noise for closer-to-people workspaces, and certified compliance lowering regulatory risk. The adjustable taps help optimize voltage, potentially reducing energy waste and extending equipment life. While upfront costs are higher, lifecycle costs typically decrease through reliability, reduced downtime, and fewer remediation requirements.