Eaton N48M28T75CUEESR Nonlinear Transformer - K-Factor
Part Number: N48M28T75CUEESR
Quick Summary
Eaton N48M28T75CUEESR is a K-Factor nonlinear ventilated transformer for three-phase industrial power distribution. Engineers often contend with heat, noise, and voltage stability in compact electrical rooms, risking outages and equipment damage. Key certifications include NEMA TP-1 efficiency and an audited sound level report, with additional approvals available by request. This solution combines copper windings and a robust 200°C insulation system with precise taps to maximize efficiency, reliability, and scalability for modern automation plants.
Product Information
Extended Description
N48M28T75CUEESR Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 208Y/120V, 150°C rise w/ 200°C insulation systeam, 75 kVA, Copper windings, EE, SR
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T75CUEESR
UPC
786680111853
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
851 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
Contact Manufacturer
Catalog Notes
NEMA TP-1 efficient Certified sound level report.
Coil material
Copper
Wiring connection
283B
Type
Nonlinear ventilated transformer
Frame
916A
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
75 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T75CUEESR
Feature: K-Factor nonlinear design improves voltage regulation under harmonic-rich loads. Benefit: enhanced stability for sensitive automation equipment reduces nuisance trips and controller wear. Application: machine controls, drives, and control panels in manufacturing facilities. Feature: 75 kVA rating with 480 V primary and 208Y/120 V secondary. Benefit: simplifies distribution topology, supports standard plant feeders, and minimizes the need for multiple step-downs. Application: automation racks and panel boards in production lines. Feature: Copper windings and a robust insulation system (150 °C rise; 200 °C insulation). Benefit: lower copper losses, higher thermal tolerance, and longer service life in hot environments. Application: high-density electrical rooms and outdoors with protective enclosures. Feature: Tap options 2 at +2.5% and 4 at -2.5%. Benefit: precise voltage regulation to maintain balance across loads and protect equipment sensitivity. Application: critical feeders and sensitive sensors in automation networks. Feature: Electrostatically shielded core and WS19 weather shield. Benefit: reduced EMI/RFI, safer operation near controllers, and improved reliability in environments with strong electrical noise. Application: outdoor or harsh indoor installations close to control cabinets. Feature: Wiring connection 283B and frame 916A with compact footprint. Benefit: straightforward installation, compatible mounting, and predictable enclosure fit. Application: retrofit projects and new builds where space and compatibility matter.
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FAQs
Install at 75 kVA within a compatible enclosure using the 283B wiring connection and 916A frame. Verify 480 V primary and 208Y/120 V secondary compatibility, observe the +2.5% / -2.5% tap ranges for voltage regulation, and ensure WS19 weather shielding or indoor protection as needed to maintain insulation integrity and EMI control.
K-Factor nonlinear design mitigates transformer overheating and voltage distortion under harmonic currents. The copper windings and 150 °C rise/200 °C insulation system improve thermal performance, while the electrostatic shielding reduces EMI, resulting in steadier voltages for sensitive automation equipment and longer transformer life.
Yes. The transformer is a three-phase 75 kVA unit with 480 V primary and 208Y/120 V secondary, designed for factory automation, control panels, and feeder circuits. Tap options support voltage adjustment, and copper windings offer reliable performance across typical automation loads at 60 Hz.
The data highlights NEMA TP-1 efficiency certification and an auditable sound level report. Additional regulatory certifications can be requested from Eaton, and a comprehensive datasheet is available to confirm insulation, temperature rise, and shielding specifications for compliance audits.
Expect lower maintenance due to robust insulation and copper windings, with a typical warranty aligned to Eaton policy (one year from installation or 18 months from shipment). The 75 kVA rating, high efficiency, and reduced noise/EMI contribute to energy savings and lower downtime, supporting a favorable total cost of ownership in automation environments.