Eaton N48M47B49A K-Factor transformer - UL Listed
Part Number: N48M47B49A
Quick Summary
Eaton N48M47B49A is a K-Factor nonlinear ventilated transformer for critical power distribution. It helps manage voltage quality and heat in high-demand electrical systems, reducing downtime and improving equipment life. UL Listed certification confirms safety and reliability for industrial deployments, aligning with field service and procurement expectations. This three-phase transformer delivers 150 kVA with a 480 V primary and 480Y/277 V secondary, featuring aluminum windings and electrostatic shielding for EMI control. By combining robust protection with easy installation and taps for +/- 2.5% adjustments, it supports fast commissioning, lower life-cycle costs, and seamless integration into modern power management and distribution architectures.
Product Information
Extended Description
N48M47B49A Eaton: Eaton K-Factor nonlinear ventilated transformer K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 480V, Taps: 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 480Y/277V, 80°C, 150 kVA , Al windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47B49A
UPC
786680015168
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
1 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
Model A
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
150 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
480Y/277 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47B49A
Feature → Business Impact → Application: K-Factor nonlinear ventilated design provides improved inrush control and efficient cooling, reducing thermal stress on windings and extending service life. This translates to higher uptime and lower maintenance for data centers and high-demand manufacturing environments where load variability is routine. Feature: 150 kVA rating with 480 V primary and 480Y/277 V secondary enables flexible distribution and ballast for diverse loads. Business Impact: simplifies capacity planning and minimizes the need for supplemental transformers. Application: ideal for central plant distributions in industrial facilities and process operations that require reliable step-down and step-up capabilities. Feature: voltage taps at +2.5% FCAN and 4 at -2.5% FCBN provide precise regulation under changing supply conditions. Business Impact: keeps secondary voltage within tight tolerances, protecting sensitive controls and motors. Application: sites with variable input voltage or long feeders where voltage stability drives performance. Feature: aluminum windings combined with electrostatic shielding reduce EMI and improve durability. Business Impact: lowers risk of control-system interference and arcing, supporting safer, greener operation. Application: automation cabinets, PLCs, VFDs, and other electronics in manufacturing lines. Feature: ventilated construction supports an 80 °C rise at 60 Hz, ensuring reliable operation in hot industrial environments. Business Impact: enables compliance with insulation class requirements and reduces cooling loads in the facility. Application: distribution rooms, machine rooms, and outdoor installations with challenging ambient temperatures. Feature: UL Listed certification and standard warranty offer procurement confidence and post-sale support. Business Impact: shortens approval cycles, reduces risk during commissioning, and simplifies maintenance planning. Application: projects in regulated industries and ongoing asset management programs requiring certified equipment.
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FAQs
The N48M47B49A is a three-phase, 150 kVA unit designed for straightforward field integration with standard low-voltage distribution panels. Plan for 480 V primary connections, 480Y/277 V secondary circuits, space for ventilated cooling, and room for the voltage taps. Ensure proper bus bar alignment, access for testing taps, and compliance with UL listed enclosure requirements. Allow appropriate clearance for airflow and periodic inspection, and coordinate with maintenance teams on the transformer shield and EMI considerations.
K‑Factor nonlinear transformers are engineered to handle non sinusoidal waveforms without overheating. This yields tighter voltage regulation under harmonic-rich loads and better thermal margins for windings. In practice, facilities with variable demand—such as data centers or motor‑driven lines—benefit from reduced voltage deviation, lower heat generation, and longer intervals between maintenance cycles.
Yes. The N48M47B49A provides a 480 V primary and a 480Y/277 V secondary, designed for three‑phase distribution. With aluminum windings and a ventilated design, it delivers 150 kVA while offering voltage regulation taps (+2.5% and -2.5%) to accommodate fluctuating input conditions commonly encountered in data centers and manufacturing plants.
This Eaton transformer is UL Listed, ensuring compliance with electrical safety standards. It carries Eaton’s standard warranty: one year from installation or eighteen months from shipment, whichever occurs first. These certifications and terms support procurement approvals, risk assessment, and ongoing maintenance planning for regulated facilities.
Expect improved uptime thanks to the ventilated design and robust insulation, which support reliable operation in hot environments. The K‑Factor nonlinear design and EMI shielding reduce disturbance to nearby controls, while the 60 Hz rating and 150 kVA capacity align with typical facility budgets. Long term, energy efficiency improvements and reduced cooling loads contribute to a favorable return on investment.