Eaton N48M28F45CULS42 Transformer - UL Listed
Part Number: N48M28F45CULS42
Quick Summary
Eaton Transformer N48M28F45CULS42 delivers reliable three-phase power conditioning for industrial facilities and data centers. This K‑Factor nonlinear ventilated transformer is designed to maintain voltage accuracy under harmonic loading, reducing equipment stress and downtime. UL Listed certification underscores safety compliance in demanding environments. With a 45 kVA rating, 480 V primary and 208Y/120 V secondary, it supports scalable automation and controls architectures while meeting stringent reliability standards. The unit’s copper windings, electrostatic shielding, and low sound profile (42 dB) help minimize EMI and noise during operation, simplifying installation in constrained spaces. For project teams, the combination of rugged performance and Eaton’s warranty provides measurable total cost of ownership benefits and faster ROI.
Product Information
Extended Description
N48M28F45CULS42 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, 115°C, 45 kVA, Cu windings, Elec. Shield, Frame: 915D
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F45CULS42
UPC
786680026188
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
616 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 42 dB
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Frame
915D
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
45 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Modification 1
Low sound 42 dB
Special features
Electrostatically Shielded
Weathershield
WS39
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F45CULS42
Feature → Business Impact → Application: The N48M28F45CULS42 uses a K-Factor nonlinear design (K-13) to better tolerate nonlinear loads from drives and rectifiers, improving voltage regulation and reducing transformer overheating under harmonic distortion; this translates to longer equipment life and fewer unplanned outages in manufacturing lines. Application: retrofit or new installations in automated production cells and process lines where harmonic content is common. Feature → Business Impact → Application: 45 kVA three-phase capacity with a 480 V primary and 208Y/120 V secondary enables compact, scalable power distribution for control panels and motor feeders; customers can consolidate transformers on a single feeder and simplify protection coordination. Application: data centers, machine shops, and packaging lines needing reliable step-down performance. Feature → Business Impact → Application: taps at +2.5% and -2.5% allow precise voltage adjustment to compensate for line drops and load changes; operators gain improved voltage stability with minimal energy waste. Application: systems facing voltage fluctuations due to long feeders or high idle loads. Feature → Business Impact → Application: copper windings and electrostatic shielding reduce EMI, improving control reliability and allowing closer integration with sensitive PLCs and HMI equipment. Application: critical process control environments where EMI suppression is essential. Feature → Business Impact → Application: frame 915D, 42 dB low sound, WS39 weather shield, and robust enclosure design minimize installation challenges; on-site commissioning is faster and maintenance visits are less disruptive. Application: space-constrained or noise-sensitive facilities, such as packaging lines near offices or data-driven manufacturing cells. Feature → Business Impact → Application: UL Listed certification and Eaton warranty offer safety assurance and predictable support; combined with a 1‑year standard warranty (or 18 months from shipment), this reduces risk and supports long-term budgeting. Application: procurement conversations that prioritize safety compliance and vendor responsiveness. Feature → Business Impact → Application: 60 Hz operation and 115 °C rise rating align with typical North American power systems, ensuring compatibility with standard industrial infrastructure. Application: industrial sites adopting modern, mixed-load powerframes requiring robust thermal performance.
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FAQs
Installers should verify the 915D frame matches the mounting surface and enclosure opening. Ensure proper bolt pattern, reserved clearance for cooling, and alignment with the primary 480 V supply and 208Y/120 V secondary circuits. Use the documented torque specs and preserve the electrostatic shield connections; the WS39 weather shield should be fitted for outdoor or harsh environments.
The transformer uses a K-Factor nonlinear design (K-13) to handle harmonic currents typically produced by drives and rectifiers. This reduces overheating and improves voltage regulation under heavy nonlinear loading, which translates to improved motor performance, reduced nuisance tripping, and longer equipment life in automation networks.
Yes, the unit is UL Listed, confirming adherence to recognized safety standards for electrical equipment. This facilitates safer installation, simplifies supplier qualification, and supports regulatory compliance in many North American facilities, while also aligning with Eaton's warranty terms for risk management.
Yes. The transformer provides taps at 2 at +2.5% FCAN and 4 at -2.5% FCBN, enabling electricians to fine-tune output voltage to compensate for feeder losses or transient load changes, improving overall voltage stability at the load end.
Expect reduced maintenance downtime due to improved reliability under harmonic loading and EMI suppression from shielding. The 45 kVA capacity supports scalable automation, and the UL listing plus Eaton’s warranty reduce risk. Over time, these factors contribute to lower total cost of ownership and faster payback in automation projects.