Eaton N48M28F09CU K-Factor nonlinear ventilated transformer - UL Listed
Part Number: N48M28F09CU
Quick Summary
The K-Factor nonlinear ventilated transformer from Eaton delivers robust voltage conditioning for industrial power systems in demanding environments. This three-phase unit is engineered to perform in control panels, motor drives, and distribution boards where harmonics and heat buildup threaten reliability. UL Listed safety certification provides procurement confidence, while copper windings, an electrostatic shield, and a 115°C rise rating support consistent performance under load. The WS38 weather shield option extends outdoor or harsh-environment applicability, and the 9 kVA rating with a 480 V to 208Y/120 V secondary pairing aligns with common industrial gear. Engineered for efficiency and scalable power distribution, it helps reduce energy costs and extend component life.
Product Information
Extended Description
N48M28F09CU Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 208Y/120V, 115°C, 9 kVA, Cu windings, Elec. Shield, Frame: 912B, uses WS38
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F09CU
UPC
786680050640
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
248 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
Copper
Type
Ventilated transformer
Design
K-13
Frame
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
9 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F09CU
Ventilated K-Factor design improves thermal management, delivering more stable output under varying loads and reducing hot spots; business impact includes longer service life for critical control gear and lower cooling energy costs in dense panel racks. Copper windings and an electrostatic shield enhance electromagnetic interference control and overall efficiency, translating to fewer EMI-related disruptions in sensitive automation equipment and more predictable performance in drives. Voltage taps of +2.5% FCAN and -2.5% FCBN enable precise regulation to compensate for supply fluctuations, which minimizes downtime and improves panel voltage consistency in facilities with variable input conditions. With a 9 kVA rating and 480 V primary to 208Y/120 V secondary, the transformer integrates smoothly with standard industrial feeders and power distribution schemes, supporting scalable upgrades without reengineering panels. The frame 912B construction and WS38 weathershield compatibility provide rugged installation options in demanding environments, including outdoor or harsh indoor environments, while maintaining reliability and safety. The unit’s 60 Hz operating frequency and 115°C rise specification offer predictable performance in North American industrial settings, contributing to a lower total cost of ownership through reduced maintenance and fewer replacements. UL Listed certification reinforces compliance with essential electrical safety standards, reinforcing procurement confidence for engineers and procurement teams alike.
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FAQs
Install in ventilated locations with clearance for airflow; the unit weighs 248 lb and measures 16.5 in (L) x 23 in (W) x 30 in (H). Mount on a stable surface and plan for room to access taps and connections. If outdoors or in harsh environments, WS38 weather shield compatibility is available, and ensure adequate space for heat dissipation and inspection.
The transformer is a three-phase 9 kVA unit with a 480 V primary and 208Y/120 V secondary, rated for 60 Hz operation. It provides taps of +2.5% FCAN and -2.5% FCBN for voltage regulation, uses copper windings, includes an electrostatic shield, and has a 115°C rise rating, suitable for standard industrial panels.
Yes. The N48M28F09CU uses a K-Factor nonlinear design intended to mitigate harmonic impact from nonlinear loads, reducing distortion in the distribution network and improving the reliability of downstream equipment such as drives and controllers.
The product is UL Listed, providing essential safety certification for electrical equipment. This certification supports compliance during procurement and helps simplify integration into US and other UL-aligned safety programs.
Warranty terms follow Eaton Selling Policy 25-000: one year from the date of installation or eighteen months from shipment, whichever occurs first. For service, parts, or technical questions, contact Eaton support or your authorized distributor.