Eaton N44M28T75 Transformer - UL Listed, K-Factor
Part Number: N44M28T75
Quick Summary
N44M28T75 transformer provides robust power conditioning for three-phase industrial electrical systems. Engineers rely on stable voltage, harmonic control, and reliable operation under heavy loads, and this unit supports those needs. The K-Factor nonlinear ventilated design helps manage non-linear loads typical of modern motor drives and process equipment. With UL Listed certification, it meets essential safety and regulatory requirements for panel and equipment rooms. The transformer also integrates easily into existing power management architectures, thanks to standard primary and secondary voltages, compatible tap settings, and a weather-protected option. In short, it delivers dependable performance, scalable capacity, and safer, compliant operation for industrial facilities.
Product Information
Extended Description
N44M28T75 Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 440V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 150°C, 75 kVA, Al windings , Elec. Shield, Frame: 916A, uses WS19
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N44M28T75
UPC
786680068119
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
758 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
UL Listed
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
75 kVA
Phase
Three-phase
Primary voltage
440 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N44M28T75
Feature → Business Impact → Application: The K-Factor nonlinear ventilated design delivers improved harmonic handling under non-linear loads, enhancing transformer life and reducing equipment wear, which translates to lower maintenance costs and extended uptime for manufacturing lines and processing plants. This supports power management strategies in facilities with motor drives, presses, and presses, improving reliability and energy efficiency in heavy industry. Feature → Business Impact → Application: 75 kVA rating with 440 V primary and 208Y/120 V secondary provides scalable, plug-and-play compatibility for existing distribution networks, enabling faster commissioning in industrial plants and data centers. Feature → Business Impact → Application: Tap settings 2 at +2.5% and 4 at -2.5% allow precise voltage regulation amid grid variations, reducing equipment stress and improving process stability in environments with fluctuating supply voltages. Feature → Business Impact → Application: Aluminum windings and electrostatic shield with WS19 weather shield bolster durability and EMI control, supporting outdoor or harsh indoor installations and compliant, safer operation. Feature → Business Impact → Application: 150 °C rise capability and UL Listed certification give confidence in safety margins and regulatory compliance, supporting uptime guarantees and lower risk during peak loading or startup transients. Feature → Business Impact → Application: Frame 916A with a compact, ventilated design and weight of 758 lb facilitates installation in standard electrical rooms and retrofit projects, enabling smoother integration with existing equipment racks and panel boards.
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FAQs
Install the N44M28T75 by aligning it with a suitable panel, ensuring adequate clearance for airflow around the ventilated core. Connect to 440 V three-phase primary and 208Y/120 V secondary circuits, observing the appropriate taps: two at +2.5% FCAN and four at -2.5% FCBN for voltage regulation. Use the aluminum windings and electrostatic shield to minimize EMI, and install the WS19 weather shield if exposed to outdoor or harsh indoor environments. Verify UL Listed compliance and perform final insulation resistance and polarity checks before energizing.
Key specs include a 75 kVA rating, 60 Hz frequency, three-phase configuration, primary voltage 440 V, secondary voltage 208Y/120 V, and a 150 °C rise. The unit uses aluminum windings, features an electrostatic shield, and has a frame designation of 916A. Tap settings include 2 taps at +2.5% FCAN and 4 taps at -2.5% FCBN. It is UL Listed for safety and reliability in industrial power distributions.
Yes. The N44M28T75 employs a K-Factor nonlinear design, specifically engineered to mitigate harmonic content from non-linear loads such as motor drives, power supplies, and high-efficiency equipment. This improves power quality, reduces overheating, and extends transformer life. It’s especially beneficial in facilities with variable-speed drives or pulsed loads, where harmonic stress would otherwise shorten equipment lifespan.
The N44M28T75 carries UL Listed certification, indicating compliance with essential electrical safety standards for industrial transformers. This certification supports safe integration into panel boards and power distribution networks in manufacturing and processing environments, helping to meet internal safety policies and regulatory requirements without additional certification work.
Total cost of ownership factors include initial capital cost, installation effort, maintenance intervals, and energy efficiency over the service life. The N44M28T75’s robust cooling (K-Factor nonlinear design), 150 °C rise tolerance, and aluminum windings reduce maintenance needs and cooling costs. The WS19 weather shield and UL Listed safety contribute to longer uptime, lower replacement risk, and a favorable ROI in facilities with demanding loads and frequent startup transients.