Eaton N48M28B45LS42 K-Factor ventilated transformer - UL Listed
Part Number: N48M28B45LS42
Quick Summary
The Eaton N48M28B45LS42 K-Factor nonlinear ventilated transformer provides reliable three-phase power distribution for industrial facilities. Engineers often struggle with heat, harmonic distortion, and space constraints that threaten uptime and compliance. UL Listed safety, low-noise operation, and an 80°C rise rating help ensure safe, code-compliant performance in demanding environments. With aluminum windings, electrostatic shielding, and a compact 914D frame, it integrates smoothly into standard switchgear and control panels while delivering scalable power for diverse load profiles.
Product Information
Extended Description
N48M28B45LS42 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, 80°C, 45 kVA , Al windings, Elec. Shield, Frame: 914D
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B45LS42
UPC
786680026041
Product Length/Depth
22 in
Product Height
39 in
Product Width
29 in
Product Weight
501 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
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
914D
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
80 °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 - N48M28B45LS42
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear ventilated design improves harmonic handling and thermal management. Business Impact: Reduces equipment overheating risk and improves overall system reliability, translating to lower maintenance costs and less downtime. Application: Ideal for dense industrial switchgear and motor control centers where harmonic-rich loads are common. Long-tail keywords: K-Factor transformer, nonlinear transformer, harmonic mitigation, heat management. Feature: 45 kVA three-phase rating with 480 V primary and 208Y/120 V secondary. Business Impact: Provides flexible, scalable power provisioning for mixed load centers, enabling modular expansion without rewiring. Application: Plant power distribution and panelboard upgrades in manufacturing facilities. Long-tail keywords: three-phase transformer 45 kVA, 480 V to 208V transformer, distribution panel upgrade. Feature: Tap changes at +2.5% and -2.5% to match voltage fluctuations. Business Impact: Improves voltage regulation and motor efficiency, reducing vibration and wear on critical loads. Application: Industrial automation and conveyor systems requiring stable voltages. Long-tail keywords: transformer taps, voltage regulation, automation load stability. Feature: Aluminum windings with electrostatic shielding. Business Impact: Lower weight, improved corrosion resistance, and reduced EMI for sensitive controls, boosting reliability in harsh environments. Application: Outdoor or envelope-adjacent installations in harsh plants. Long-tail keywords: aluminum windings transformer, EMI shielded transformer, outdoor transformer. Feature: Frame 914D and low 42 dB sound profile. Business Impact: Easier mounting in standard enclosures and quieter operation reduces noise-related compliance concerns and operator fatigue. Application: Control rooms and switchgear with space constraints. Long-tail keywords: 42 dB transformer, quiet operation transformer, 914D frame. Feature: UL Listed certification and 80°C rise. Business Impact: Aligns with safety standards and guarantees performance under elevated ambient temperatures, reducing commissioning risk. Application: Industrial facilities seeking compliant, dependable power components. Long-tail keywords: UL Listed transformer, 80°C rise, safety certified transformer.
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FAQs
The transformer uses a standard 914D frame footprint with dimensions of 22 in depth, 39 in height, and 29 in width, facilitating replacement or new installation in common switchgear enclosures. Ensure adequate clearance for cooling, grounding, and access to taps (+2.5% and -2.5%), and verify compliant mounting hardware for a secure, code-adherent fit.
K-Factor nonlinear design mitigates distorted currents by better managing harmonic content, reducing overheating in windings and minimizing voltage distortion on the secondary. This translates to improved motor and control electronics life, fewer nuisance trips, and more predictable panel performance in harmonically rich environments.
Yes. With a 45 kVA rating, three-phase operation, 480 V primary, and 208Y/120 V secondary, the N48M28B45LS42 is well-suited for feeding control circuits, PLCs, and downstream equipment in factory floor installations, while maintaining stable voltage under typical load fluctuations.
The unit is UL Listed for safety compliance and includes features such as an 80°C rise rating and a 42 dB low-noise profile. Its electrostatic shield and aluminum windings support EMI control and durability, contributing to safer, more reliable long-term operation in industrial environments.
Predicted ROI comes from reduced downtime due to robust thermal and harmonic performance, quieter operation, and lower weight from aluminum windings for easier handling. The 914D frame and shielded design simplify installation and reduce wear on supporting infrastructure, delivering longer service intervals and lower lifecycle costs.