Eaton N48M47B75A K-Factor Transformer - UL Listed
Part Number: N48M47B75A
Quick Summary
Eaton N48M47B75A K-Factor nonlinear ventilated transformer provides robust power conversion for critical three-phase industrial loads. Engineers rely on stable voltage and fast response under non-linear loading, but many installations struggle with overheating and insufficient fault tolerance as demand grows. UL Listed safety certification reinforces compliance for installation in demanding manufacturing environments, while the K-13 design and 80 °C rise specification support reliable operation in hot rooms. With aluminum windings, an electrostatic shield, and the WS19 weather shield, this transformer combines rugged durability with install-anywhere versatility, delivering predictable performance for modern automation and power distribution schemes. Its 75 kVA rating and three-phase configuration align with industry norms for data centers, machine builders, and utility feeders.
Product Information
Extended Description
N48M47B75A 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: 480Y/277V, 80°C, 75 kVA , Al windings, Elec. Shield, Frame: 916A, uses WS19
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47B75A
UPC
786680015144
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
770 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
Frame
916A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
75 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
480Y/277 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47B75A
Feature: K-Factor nonlinear ventilated design provides optimized performance under non-linear loads. Business Impact: Reduces overheating risk and extends transformer life in harmonics-rich environments, lowering maintenance costs. Application: Drives, presses, and motors in automated lines where non-linear power is common. Feature: Aluminum windings with electrostatic shield improve electrical performance and EMI containment. Business Impact: Enhances reliability of control cabinets and PLC environments by minimizing interference and leakage; simplifies compliance with EMI/EMC expectations. Application: Industrial controls rooms and machine enclosures near high-power equipment. Feature: 480 V primary and 480Y/277 V secondary support standard utility and facility distribution schemes. Business Impact: Simplifies system integration and reduces engineering time for new installations; improves compatibility with existing bus ducts and switchgear. Application: Factory power distribution networks and data-center-like suites. Feature: Tap changers (2 at +2.5% FCAN, 4 at -2.5% FCBN) enable precise voltage regulation. Business Impact: Maintains voltage accuracy under load change and supply variation, improving equipment performance and uptime. Application: Long, variable feeders and systems with fluctuating input voltage. Feature: Frame 916A with WS19 weathershield offers rugged installation in harsh environments. Business Impact: Enables outdoor or semi-exposed installations without compromising safety or longevity, reducing enclosure requirements. Application: Outdoor switchgear cabinets, process plants, and harsh factory floors. Feature: 75 kVA, 60 Hz, three-phase design delivers scalable power for evolving automation needs while UL Listed demonstrates safety compliance. Business Impact: Supports growth without replacement, lowers total cost of ownership, and accelerates commissioning timelines. Application: Industrial automation, packaging lines, and software-driven manufacturing cells.
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FAQs
Install the N48M47B75A on a sturdy base that supports its 770 lb weight and 23.42 in depth. Use the 916A frame for mounting, attach WS19 weather shielding if outdoors, connect 480 V primary and 480Y/277 V secondary conductors, and ensure adequate ventilation around the cabinet. Verify taps are set to +2.5% FCAN or -2.5% FCBN as required for voltage regulation.
This is a three-phase, 75 kVA transformer with a 60 Hz frequency rating. Primary voltage is 480 V, and secondary voltage is 480Y/277 V. It uses aluminum windings, features an electrostatic shield, and includes tap changers for voltage adjustments (+2.5% and -2.5%). The unit is UL Listed for safety compliance.
Yes, the N48M47B75A is UL Listed, indicating it has been evaluated for safety by Underwriters Laboratories. This certification supports safe integration into industrial environments, simplifies procurement with validated safety standards, and helps ensure compliance with electrical safety requirements during installation and operation.
Yes. With an 80 °C rise rating and K-Factor nonlinear design, the transformer is engineered to manage non-linear loads while maintaining temperature limits. The aluminum windings and electrostatic shield further enhance reliability and performance under demanding operating conditions typical of modern automated facilities.
Prioritize proper ventilation and clearance around the unit to leverage its ventilated design. Use the WS19 weather shield for outdoor or harsh environments, ensure correct tap settings for load variation, and route cables to minimize EMI coupling with sensitive automation equipment. Regular inspection of the shield, frame mounting, and terminations will further extend service life and performance.