Eaton N48M28F33CU Transformer - K-Factor UL Listed
Part Number: N48M28F33CU
Quick Summary
The Eaton N48M28F33CU transformer is a rugged, three-phase power solution designed for industrial distribution and control. Engineers often struggle with voltage sag, thermal bottlenecks, and compatibility when retrofitting legacy gear. UL Listed safety certification reinforces reliability, while the copper-wind design, shielded construction, and selectable taps help maintain steady voltage under changing loads. This transformer supports a 300 kVA rating at 60 Hz and a 480 V to 208Y/120 V configuration, making it suitable for manufacturing lines, data centers, and process control panels. By aligning with Eaton’s service and warranty framework, it delivers predictable performance and reduces unexpected downtime in demanding settings.
Product Information
Extended Description
N48M28F33CU 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: 208Y/120V, 115°C, 300 kVA , Cu windings, Elec. Shield
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F33CU
UPC
786680371356
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
Coil material
Copper
Type
Ventilated transformer
Design
K-13
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
300 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F33CU
Feature: K-Factor nonlinear ventilated design handles non-linear loads with reduced hotspot risk. Business Impact: this increases transformer reliability and extends winding life by mitigating overheating under harmonic-rich loads common in modern factories. Application: ideal for motor drives, welding, and power electronics on factory floors. Feature: Copper windings deliver lower resistance losses and higher current capacity, contributing to improved efficiency. Business Impact: reduced I2R losses translate to cooler operation and energy savings over the life of the unit. Application: especially beneficial in continuous-duty applications such as conveyors, presses, and CNC machines where steady performance lowers total cost of ownership. This translates to less unplanned downtime and higher throughput. Feature: Tap size options include 2 at +2.5% FCAN and 4 at -2.5% FCBN, enabling precise voltage regulation. Business Impact: protects connected equipment from undervoltage and overvoltage events, reducing nuisance trips and extending equipment life. Application: seamless retrofit into existing switchgear and panel boards without major wiring changes. Operators appreciate reduced voltage drift during load changes. Feature: Electrostatic shield reduces EMI and electrical interference with nearby controls and instrumentation. Business Impact: improves signal integrity for PLCs, sensors, and measurement systems; lowers field disturbance in crowded plant environments. Application: ideal for automation-heavy facilities and data centers where EMI can compromise process control. Feature: Ventilated cooling with 115 °C temperature rise tolerance supports higher ambient temperatures and demanding loading. Business Impact: allows reliable operation in hot plants and crowded electrical rooms, reducing the need for oversized cooling or enclosure space. Application: suitable for warehouses, manufacturing floors, and urban facilities with limited ventilation. Feature: UL Listed certification and 300 kVA three-phase, 60 Hz specification align with common global power standards. Business Impact: accelerates procurement, simplifies regulatory compliance, and speeds installation in standard plant environments. Application: harmonizes with distribution boards, switchgear, and motor control centers across industries.
Get a Quick Quote for a Eaton N48M28F33CU
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton N48M28F33CU?
Enquire Now
FAQs
Plan for a three-phase 480 V input and 208Y/120 V output layout, with adequate clearance and ventilation for the ventilated design. Ensure proper mounting in an accessible switchgear or control panel area, and accommodate the 2 at +2.5% and 4 at -2.5% tap options to match local voltage conditions. Verify UL Listed compliance and allow for EMI shielding integration where needed.
The K-Factor nonlinear design manages non-linear loads by reducing hotspot formation and thermal stress on windings. This leads to more stable temperatures, extended winding life, and lower maintenance costs, especially in environments with motor drives, welders, or power electronics that introduce harmonic currents.
Yes. With a 300 kVA three-phase rating and 60 Hz operation, it provides robust power distribution from 480 V to 208Y/120 V, while the copper windings and EMI shield support stable voltage and clean power delivery to sensitive IT and automation equipment in data centers and manufacturing floors.
UL Listed certification confirms adherence to recognized electrical safety standards, simplifying approvals for installations in many markets. For global deployments, confirm additional regional certifications as required, but UL Listed often accelerates procurement and reduces qualification time for critical power equipment like this transformer.
Maintenance is typically minimal due to robust engineering, with a focus on routine inspection of connections, cooling pathways, and tap settings. ROI is enhanced by higher efficiency from copper windings, reduced downtime thanks to reliable K-Factor performance, and extended equipment life from controlled thermal and EMI conditions.