Eaton N48M28T15CULS42 K-Factor ventilated transformer - UL Listed
Part Number: N48M28T15CULS42
Quick Summary
N48M28T15CULS42 is a K-Factor nonlinear ventilated transformer designed for three-phase power distribution in industrial facilities. In tight equipment spaces, noise, heat buildup, and voltage instability challenge uptime and safety. UL Listed safety certification supports regulatory compliance while the copper windings and electrostatic shield enhance efficiency and EMI protection. Its 16.5 in length, 23 in width, and 30 in height with a 289 lb weight deliver a robust yet install-friendly solution, helping manufacturers and integrators reduce downtime and improve power quality across controlled environments. This unit also aligns with Eaton's reliability standards and supports scalable power distribution with accessible taps and a protective weather shield for rugged plant settings.
Product Information
Extended Description
N48M28T15CULS42 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, 15 kVA , Cu windings, Elec. Shield, Frame: 912B
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T15CULS42
UPC
786680025723
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
289 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
912B
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
15 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Modification 1
Low sound 42 dB
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T15CULS42
Feature → Business Impact → Application: The N48M28T15CULS42 uses K-Factor nonlinear design to mitigate harmonic currents, improving overall system efficiency and reducing transformer overheating in harmonics-rich loads common to modern manufacturing lines. This translates to longer transformer life, fewer maintenance events, and lower energy waste in factory floors. Application: ideal for manufacturing equipment rooms and control panels that experience harmonic stress and variable loads. Feature → Business Impact → Application: A 15 kVA three-phase configuration with 480 V primary and 208Y/120 V secondary supports medium-duty power distribution, enabling compact, centralized electrical racks. Impact: streamlined wiring, reduced copper losses, and easier upstream/downstream coordination for panel builders and integrators. Application: data centers, machine cells, and packaging lines requiring reliable local power.Feature → Business Impact → Application: Tap settings—2 at +2.5% FCAN and 4 at -2.5% FCBN—provide precise voltage regulation to protect sensitive electronics and control systems. Impact: tighter voltage tolerance, fewer device trips, and improved process stability. Application: PLCs, drives, and instrumentation panels in high-variance networks.Feature → Business Impact → Application: Copper windings with an electrostatic shield improve efficiency and EMI performance. Impact: reduced radiated noise and interference, aiding compliance with EMI/EMC standards and enabling closer cabinet placements. Application: data centers, robotics cells, and mixed-signal automation zones where clean power is critical.Feature → Business Impact → Application: Weathershield WS38 and a low 42 dB sound profile deliver rugged reliability with quiet operation in busy plant environments. Impact: compliant installations in open factory floors and retrofit projects where noise and weather exposure matter. Application: outdoor or semi-enclosed electrical rooms and process lines requiring durable protection and quiet operation.Feature → Business Impact → Application: 912B frame, 150 °C rise capability, and UL Listed certification provide a robust, safe, and standards-aligned solution. Impact: simplified procurement, verifiable safety, and predictable performance under demanding industrial conditions. Application: general plant distribution, control cabinets, and near-line equipment where safety and reliability are prioritized.
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FAQs
Begin with a site assessment to confirm space for the 16.5 x 23 x 30 in footprint and WS38 weather protection. Mount the unit in a suitable enclosure, connect the 480 V primary leads to the power source per the Eaton wiring diagram, and terminate the 208Y/120 V secondary to your distribution panels. Verify copper windings are properly seated, ensure the electrostatic shield is intact, and set taps to match the nominal line voltage using the +2.5% and -2.5% options as required. Finally, perform insulation and continuity checks and confirm UL Listed compliance before energizing the load.
K-Factor nonlinear refers to the transformer’s ability to handle harmonic currents without overheating or performance degradation. This design helps maintain voltage integrity and reduces losses under nonlinear loads common in modern automation, drives, and power supplies. For engineers, the benefit is improved reliability, longer service life, and more predictable behavior in harmonics-rich environments.
Yes. The N48M28T15CULS42 features a low sound profile of 42 dB and a robust frame that supports quiet operation in busy facilities. Its copper windings and electrostatic shield also minimize EMI, which is crucial in data centers and sensitive control rooms. The WS38 weather shield adds environmental protection, making it suitable for HVAC-adjacent or semi-outdoor installations.
The primary certification noted for this unit is UL Listed, indicating compliance with recognized safety standards for electrical equipment. This certification helps ensure safe installation, reduces risk during maintenance, and supports regulatory adherence in industrial facilities. No other certifications are listed in the provided data, but UL Listed status provides a strong baseline for safety and reliability.
The transformer’s design emphasizes reliability: copper windings, electrostatic shielding, and a 150 °C rise rating support stable operation under harmonic and transient conditions. The low noise level reduces operator fatigue and acoustic compliance concerns, while UL listing aids in long-term service planning. With a 15 kVA rating and robust framing, the unit delivers predictable uptime, potentially lowering total cost of ownership through reduced replacement and maintenance needs.