Eaton N48M28B22 Ventilated Transformer - UL Listed
Part Number: N48M28B22
Quick Summary
Eaton N48M28B22 K-Factor nonlinear ventilated transformer is designed to deliver reliable three-phase power transformation for large industrial facilities. In demanding environments, voltage drift, overheating, and space constraints can drive downtime and maintenance costs. UL Listed certification underpins safe operation, while the K-13 design with aluminum windings and an electrostatic shield enhances protection against harmonics and EMI. This transformer’s rugged build, 480/208Y-120 V capability, and 80°C rise translate to reduced maintenance, easier system integration, and lower total cost of ownership for industrial power distribution.
Product Information
Extended Description
N48M28B22 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: 208Y/120V, 80°C, 225 kVA, Al windings, Elec. Shield, Frame: 919, uses WS35
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28B22
UPC
786680036705
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
2400 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
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
919
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
225 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
80 °C rise
Special features
Electrostatically Shielded
Weathershield
WS35
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28B22
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The N48M28B22 uses a K-13 design in a ventilated frame to manage harmonic content, delivering improved transformer reliability under heavy loading and harmonic distortion, which reduces unplanned outages in manufacturing lines and processing facilities. Application: ideal for high-demand electrical distributions in steel, chemical, and fabrication plants. Feature → Business Impact → Application: Its ventilated construction with an 80 °C rise provides efficient cooling during peak loads, lowering thermal stress on insulation and extending service life. Application: suitable for outdoor substations and indoor switchgear rooms with limited airflow. Feature → Business Impact → Application: Taps at +2.5% FCAN and -2.5% FCBN enable precise voltage regulation as line conditions vary, improving equipment performance and minimizing voltage-related faults. Application: data centers and automated assembly lines needing tight voltage control. Feature → Business Impact → Application: Aluminum windings reduce weight and thermal mass while resisting corrosion, improving longevity and facilitating field serviceability. Application: remote installations and coastal facilities where durability matters. Feature → Business Impact → Application: Electrostatic shielding minimizes EMI and harmonics coupling into downstream electronics, protecting sensitive drives and PLCs. Application: control rooms with high electronics density. Feature → Business Impact → Application: WS35 Weathershield supports outdoor or harsh indoor environments, enabling secure installation in exposed locations without compromising cooling. Application: outdoor transformers on switchyards or exposed industrial floors. Feature → Business Impact → Application: Frame 919 and large 2400 lb footprint highlight the need for proper rigging and floor loading, but also ensure a robust, vibration-resistant installation. Application: facilities with heavy equipment or dense mechanical areas. Warranty and service insights: A one-year limited warranty (or eighteen months from shipment, whichever occurs first) provides early protection and sets expectations for maintenance planning. Application: procurement teams seeking predictable TCO and vendor support.
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FAQs
The transformer weighs about 2400 lb and has dimensions of 36.23 in L, 75 in H, and 44.2 in W, so plan for crane access, proper floor loading, and clearance for cooling and maintenance.
It is a three-phase, 225 kVA transformer with 480 V primary and 208Y/120 V secondary, 60 Hz, frame 919, with taps at +2.5% and -2.5% to regulate voltage as needed.
Yes. Its K-Factor nonlinear design, 80 °C rise, and ventilated construction support sustained loading and harmonic tolerance, improving uptime in manufacturing and processing environments.
The N48M28B22 is UL Listed, ensuring compliance with relevant electrical safety standards for industrial equipment.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first, backing field service and ensuring predictable maintenance planning.