Eaton N48M47T49A Ventilated Transformer - UL Listed
Part Number: N48M47T49A
Quick Summary
The Eaton N48M47T49A ventilated transformer is a reliable three-phase power conversion solution for industrial facilities. Engineers often contend with heat buildup, harmonic distortion, and space constraints in switchgear, which can impact uptime and safety. This model carries UL Listed certification and is designed around a K-Factor nonlinear core and an electrostatic shield to support safe, regulatory-compliant operation. Designed for 60 Hz systems with a 150 kVA rating, it converts from a 480 V primary to a 480Y/277 V secondary with selectable taps for voltage regulation. The robust aluminum windings, frame 917, and WS34 weather shield enable flexible indoor or outdoor installation while delivering consistent performance, long life, and a lower total cost of ownership across manufacturing, data centers, and heavy industry.
Product Information
Extended Description
N48M47T49A 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, 150°C, 150 kVA , Al windings, Elec. Shield, Frame: 917, uses WS34
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47T49A
UPC
786680015007
Product Length/Depth
24.67 in
Product Height
56.17 in
Product Width
31.44 in
Product Weight
1100 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
917
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
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47T49A
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K‑Factor nonlinear transformer design. Business impact: mitigates harmonic currents, minimizes overheating, and prolongs winding life. Application: supports high-load, nonlinear sites such as motor drives and CNC systems. Feature: Ventilated construction with aluminum windings. Business impact: superior cooling under heavy loading, improving efficiency and uptime. Application: substations and distribution panels in hot environments. Feature: 150 kVA three-phase rating at 60 Hz. Business impact: scalable power distribution with balanced voltages, reducing the need for multiple smaller transformers. Application: data centers, manufacturing lines, process plants. Feature: Tap settings 2 at +2.5% and 4 at -2.5% FCAN/FCBN. Business impact: voltage regulation to accommodate supply variations and long cable runs. Application: site-to-site voltage compensation and protection for sensitive equipment. Feature: Frame 917 and Weathershield WS34 with electrostatic shielding. Business impact: rugged outdoor-ready installation and EMI protection, reducing enclosure costs and space. Application: outdoor electrical rooms, shelters, or outdoor substations. Feature: 480 V primary, 480Y/277 V secondary; 150°C rise. Business impact: compatible with standard plant circuits and safe operation under peak loads. Application: critical loads in manufacturing, utilities, and data centers.
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FAQs
Mount the transformer on a level, reinforced base with clear ventilation. Connect the 480 V primary to the supply, and the 480Y/277 V secondary to the distribution circuit, using the specified taps for voltage regulation (+2.5% or -2.5% as needed). Ensure proper clearance for cooling and, if outdoors, install the WS34 shield to protect against weather and contaminants.
K-Factor nonlinear design is engineered to better withstand harmonic currents without excessive heating, improving system reliability and extending winding life. This makes the N48M47T49A well-suited for facilities with nonlinear loads such as drives and switch-mode power supplies.
Yes. The transformer features a WS34 weather shield and an electrostatic shield, enabling outdoor installation when paired with appropriate enclosure and mounting. It is UL Listed, supporting safety and regulatory compliance in outdoor environments.
Key specs include 150 kVA three-phase, 60 Hz, primary 480 V, secondary 480Y/277 V, and taps of 2 at +2.5% and 4 at -2.5%. Coil material is aluminum, with frame 917 and a 150°C rise. The unit also features an electrostatic shield and WS34 weather shield for protection and performance.
Warranty is Eaton’s Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Comprehensive support includes available datasheets, installation guidance, and access to Eaton’s transformer catalog resources for ongoing maintenance and compliance.