Eaton N48M28T12CULS47 Transformer - UL Listed
Part Number: N48M28T12CULS47
Quick Summary
Eaton N48M28T12CULS47 is a K-Factor nonlinear ventilated transformer for three-phase power distribution. In demanding facilities, noise, heat, and voltage stability challenges threaten uptime and equipment life. UL Listed safety certification ensures compliance with electrical safety standards, while the electrostatic shielding and a 150°C rise capability support reliability in harsh environments. This solution also reduces audible noise to 47 dB and offers voltage taps to adjust primary and secondary voltages, helping engineers design robust electrical systems and maintain consistent performance under transient loads. For reliability-focused projects in automation, data centers, and manufacturing, this transformer delivers measurable efficiency gains and compliance confidence.
Product Information
Extended Description
N48M28T12CULS47 Eaton: K-Factor nonlinear ventilated transformer K-13, Three-phase, PV: 480V, Taps: 2 at 0.025 FCAN, 4 at -0.025 FCBN, SV: 208Y/120V, 150°C, 112.5 kVA , Cu windings, Elec. Shield, Frame: 916A
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T12CULS47
UPC
786680026607
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
1220 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
Catalog Notes
Low sound equal to 47 dB
Coil material
Copper
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
112.5 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Modification 1
Low sound 47 dB
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T12CULS47
K-13 nonlinear ventilated design improves harmonic handling and reduces transformer loading stress, boosting system reliability and extending component life in high-crest-factor environments. The business impact is lower maintenance costs and fewer nuisance trips, especially in automation plants with switching loads and servo drives, while the application spans data centers, process facilities, and large manufacturing floors. Copper windings deliver high conductivity and thermal performance, translating to improved efficiency and reduced copper loss at full load; the electrostatic shield minimizes electrical interference, benefiting sensitive control circuits and PLCs in control panels. Tap settings provide ± voltage adjustment with two taps at +2.5% FCAN and four taps at -2.5% FCBN, enabling precise voltage regulation to maintain consistent output under fluctuating input. This supports tighter upstream tolerance and improved equipment performance. Frame 916A and compact, ventilated construction simplify installation in crowded electrical rooms, with the WS19 Weathershield option expanding outdoor and harsh-environment applicability. Low sound catalog notes of 47 dB reduce noise impact in occupied spaces, supporting compliance with workplace and facility noise requirements. The 112.5 kVA rating accommodates substantial load while maintaining robust voltage regulation at 60 Hz, making it suitable for large drives, motor loads, and mixed-duty banks. Copper wound coils, combined with a protective shield and ventilation, deliver reliable performance under continuous duty and transient spikes, addressing common objections about harmonic resilience and heat management in modern industrial power systems.
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FAQs
Plan for three-phase distribution with a 480 V primary and 208Y/120 V secondary, ensuring clearance around the 916A frame and accommodating the unit’s 47 dB noise profile. Use copper windings and electrostatic shielding to minimize EMI with nearby controllers, and select WS19 weather protection if outdoor or harsh-environment installation is anticipated. Verify taps are set per site voltage needs (+2.5% FCAN, -2.5% FCBN) and ensure UL Listed compliance during panel integration.
K-13 denotes a nonlinear winding design that mitigates harmonics from nonlinear loads, improving overall power quality and reducing voltage distortion on downstream equipment. In practice, this translates to better performance for drives, PLCs, and automation equipment, less overheating from harmonics, and a lower risk of nuisance trips in critical manufacturing and data-center environments.
Yes, with the WS19 weather-shield option and electrostatic shielding, the N48M28T12CULS47 is more capable in outdoor or harsh environments. The 150°C rise rating further supports reliability under elevated load and ambient temperatures, making it suitable for industrial yards and exposed electrical rooms when properly installed.
The unit is UL Listed, signaling compliance with recognized electrical safety standards. This certification supports safe integration into electrical systems and aids procurement teams in meeting regulatory requirements for equipment in controlled environments, panels, and distributed power architectures.
Maintenance focuses on routine thermal monitoring, insulation checks, and ensuring cooling pathways remain unobstructed due to the ventilated design. With copper windings and a robust shield, expect improved reliability and reduced repair costs in high-load automation environments. The 112.5 kVA rating provides substantial capacity, and the UL Listed status helps protect against compliance-related downtime, contributing to favorable total cost of ownership over the equipment lifecycle.