Eaton N44M31T22CU Nonlinear Ventilated Transformer K-Factor
Part Number: N44M31T22CU
Quick Summary
Eaton N44M31T22CU Nonlinear Ventilated Transformer delivers three-phase voltage transformation for industrial power distribution. Facilities often struggle with heat buildup and voltage distortion under peak loads, threatening uptime and equipment life. Certifications and approvals for transformers vary by region; contact the manufacturer for current CE, UL, or other approvals applicable to this model. The design emphasizes a 60 Hz rating, copper windings, electrostatic shielding, and a WS37 weather shield to support reliable operation in harsh environments. By combining robust protection with scalable voltage tap options and a substantial 225 kVA rating, this transformer delivers predictable performance, reduced maintenance, and long-term cost savings for power-intensive facilities. It also complements Eaton’s broader portfolio of power management solutions for industrial automation and distribution.
Product Information
Extended Description
N44M31T22CU Eaton: Eaton Nonlinear ventilated transformer KT-13 Three-phase 440 DELTA 2 at +2.5% FCAN 4 at -2.5% FCBN 220Y/127V 150°C 225 kVA Copper windings 923 292G WS37 Electrostatically shielded 60 Hz
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N44M31T22CU
UPC
786680111464
Product Length/Depth
32.65 in
Product Height
57.54 in
Product Width
36.69 in
Product Weight
0.001 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
Coil material
Copper
Wiring connection
292G
Type
Nonlinear ventilated transformer
Design
KT-13
Frame
923
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
225 kVA
Phase
Three-phase
Primary voltage
440 V
Secondary Voltage
220Y/127 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS37
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N44M31T22CU
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The N44M31T22CU uses a K-Factor nonlinear design to suppress harmonic currents, improving overall power quality and reducing overheating risk in facilities with nonlinear loads. This translates to longer equipment life and lower maintenance costs in manufacturing lines and data centers where clean power is critical.Feature → Business Impact → Application: The unit’s ventilated KT-13 design supports a 150 °C temperature rise, enabling operation in warmer environments or where cooling capacity is limited, which lowers the need for expensive cooling upgrades and reduces installation complexity in harsh industrial spaces.Feature → Business Impact → Application: Copper windings and a 60 Hz three-phase configuration deliver high efficiency and robust magnetic coupling, enhancing reliability across heavy a**pplications** like steel mills, chemical plants, and processing facilities, while maintaining stable voltage under varying load conditions.Feature → Business Impact → Application: Electrostatic shielding combined with WS37 weather shield provides EMI protection and environmental resilience for outdoor installations or facilities with adjacent high-power equipment, reducing interference with sensitive controls and ensuring compliance with EMI/EMC expectations.Feature → Business Impact → Application: The 2 at +2.5% and 4 at -2.5% voltage taps offer practical voltage regulation to accommodate fluctuating supply and load conditions, improving motor start-up performance and protecting downstream equipment in plants with variable demand.Feature → Business Impact → Application: The 292G wiring connection and 32.65 in L, 36.69 in W, 57.54 in H frame enable straightforward field installation and compatibility with Eaton’s mounting options, minimizing retrofit complexity in upgraded facilities and integrating smoothly with existing distribution layouts.
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FAQs
This transformer supports 60 Hz three-phase operation with a 440 V primary and 220Y/127 V secondary. It measures 32.65 in L by 36.69 in W by 57.54 in H and uses wiring connection 292G with copper windings. Plan for WS37 weather shielding where environmental exposure exists and ensure mounting aligns with nearby control panels and cable trays for clean routing.
The unit employs a K-Factor nonlinear design that mitigates harmonic currents, reducing voltage distortion and heat buildup. This translates to better performance for nonlinear loads, less stress on upstream protection devices, and lower maintenance in facilities with variable load profiles such as presses, welders, and drives.
Yes, it features electrostatic shielding and the WS37 weather shield option, which enhances environmental resilience and EMI protection. When installed outdoors or in damp environments, this configuration helps maintain reliable operation and reduces susceptibility to interference with sensitive control equipment.
The transformer provides a 440 V primary and a 220Y/127 V secondary. Tap changes are available as 2 at +2.5% FCAN and 4 at -2.5% FCBN, enabling practical voltage regulation to accommodate supply fluctuations and maintain load stability across varied operating conditions.
Warranty follows Eaton’s policy, with one year from installation or eighteen months from shipment, whichever occurs first. Certifications for this model are listed as 'Contact Manufacturer' for current approvals; regional CE/UL or other certifications should be confirmed with Eaton to match your compliance requirements.