Eaton NT48M11F50CUEELS42 Transformer - 50 kVA
Part Number: NT48M11F50CUEELS42
Quick Summary
Eaton NT48M11F50CUEELS42 transformer delivers reliable power distribution for industrial equipment and control panels, enabling stable operation in demanding environments. A frequent pain point is voltage sag during motor starts and non-linear loads that affect equipment life and uptime. SIL, CE, and IP-related compliance are standard expectations for safety and reliability; confirm exact marks with Eaton to match your regional requirements. This model combines a 50 kVA rating with a 480 V primary and 120/240 V secondary, copper windings, and a 115°C rise, all housed in an EE LS42 frame for space-conscious installations. By leveraging the K-Factor nonlinear design, it supports improved power quality while simplifying procurement and installation workflows across industrial facilities.
Product Information
Extended Description
NT48M11F50CUEELS42 Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 120/240V, 115°C rise, 50 kVA, Copper windings, EE, LS42
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT48M11F50CUEELS42
UPC
786680135453
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Certifications
Contact Manufacturer
Volt ampere rating
50 kVA
Primary voltage
480 V
Secondary Voltage
120/240 V
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT48M11F50CUEELS42
Feature: K-Factor nonlinear ventilated design → Business Impact: Reduces harmonic distortion and maintains cleaner supply to sensitive equipment → Application: Ideal for facilities with non-linear loads such as VFDs and switching power supplies. Feature: 50 kVA rating → Business Impact: Provides ample capacity for medium-to-large control cabinets and machine tools → Application: Primary power feeding control panels, feeders for machine bays, and general distribution. Feature: Primary 480 V / Secondary 120/240 V → Business Impact: Simplifies integration with common US distribution and control voltages → Application: Powering motor controls, relays, PLCs, and panel feeders in industrial settings. Feature: Taps at +2.5% / -2.5% → Business Impact: Improves voltage regulation under supply swings, reducing nuisance trips and equipment stress → Application: Critical loads and long conductor runs where stable voltage is essential. Feature: Copper windings, 115°C rise → Business Impact: Higher thermal capacity and durability in hot industrial rooms, enabling longer duty cycles and lower maintenance → Application: Harsh environments with limited cooling and dense equipment layouts. Feature: EE frame LS42 and ventilated cooling → Business Impact: Compact footprint with easy mounting and enhanced airflow → Application: Space-constrained electrical rooms and retrofit installations in new or existing facilities.
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FAQs
For installation, ensure adequate ventilation around the ventilated transformer and provide a clean, organized panel layout with clear separation from high-heat components. Verify mounting in an EE frame LS42 footprint and confirm clearance for the 115°C rise rating. Use proper terminal torque values and label primary and secondary voltages to prevent miswiring during panel upgrades.
The transformer offers taps at +2.5% and -2.5% to compensate for supply fluctuations and long run voltages. This enables tighter control of 120/240 V secondary circuits from a 480 V source, reducing voltage-related equipment stress, improving PLC and motor controller performance, and minimizing equipment downtime due to undervoltage or overvoltage conditions.
Yes. The NT48M11F50CUEELS42 features K-Factor nonlinear design that mitigates harmonic impact on the power system, helping protect sensitive electronics and improving overall power quality. It is particularly well-suited for facilities with VFDs, harmonics from drives, and switching power supplies, supporting longer equipment life and reduced maintenance costs.
Certification details are specified by Eaton and can vary by region. The catalog indicates ‘Contact Manufacturer’ for certifications, so verify exact marks (CE, UL, IP, SIL, etc.) with Eaton during procurement. Request the latest datasheet and compliance certificates to ensure alignment with local electrical codes and installation requirements.
The K-Factor nonlinear design helps maintain power quality under harmonic loading, which reduces equipment wear and downtime. Combined with efficient copper windings and robust cooling, expected benefits include lower maintenance costs, fewer nuisance trips, and longer service life for motors, drives, and controls, contributing to a favorable total cost of ownership in industrial environments.