Eaton N48M28F75AFEE Nonlinear Transformer - NEMA TP-1
Part Number: N48M28F75AFEE
Quick Summary
N48M28F75AFEE is a three-phase nonlinear transformer designed for reliable power distribution in demanding industrial environments. For engineers, voltage regulation and heat management under varying loads are ongoing challenges, and this unit addresses both with precise tap settings and robust cooling. The product carries NEMA TP-1 efficient and fungus-proof construction, and Eaton notes that certifications vary by market, so regional approvals such as CE or UL should be confirmed with the manufacturer. In practice, this transformer delivers solid regulation with +2.5% / -2.5% taps and a 75 kVA rating, supporting stable operation of motors, controls, and sensitive electronics while reducing energy waste and maintenance costs.
Product Information
Extended Description
N48M28F75AFEE 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, 115°C rise, 75 kVA, Fungus proof, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F75AFEE
UPC
786680111860
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
713 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 Fungus proof.
Coil material
Aluminum
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
115 °C rise
Special features
Electrostatically shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28F75AFEE
Feature: The N48M28F75AFEE uses a KT-13 K-Factor nonlinear design that improves harmonic resilience and maintains output quality under heavy, non-linear loading. Business impact: Reduced thermal stress and lower stray losses lead to cooler operation and longer asset life. Application: Ideal for manufacturing lines and drive-heavy environments where power quality directly affects process uptime. Feature: Tap settings provide precise voltage regulation with 2 taps at +2.5% and 4 taps at -2.5%. Business impact: Tight voltage control minimizes nuisance trips and protects sensitive equipment, driving fewer maintenance events and steadier production. Application: Critical for equipment fed from 480 V primary or 208Y/120 V secondary in panel boards and motor control centers. Feature: Aluminum coil material and 283B wiring offer corrosion resistance and easier installation. Business impact: Lighter weight and simpler handling during installation reduce installation time and labor costs. Application: Retrofit projects and new builds in harsh industrial settings where ease of service matters. Feature: 75 kVA rating with 60 Hz operation and 115°C rise supports robust capacity in noisy facilities. Business impact: Higher tolerance for peak loads and compact enclosures, enabling smaller electrical rooms without derating. Application: Heavy machinery, presses, and process lines needing dependable power. Feature: Electrostatic shielding and WS19 weather shield provide EMI control and environmental protection. Fungus-proof construction enhances reliability in humid zones. Business impact: Improved control-electronics integrity and reduced failure rates, supporting regulatory compliance. Application: Food processing, chemical plants, and other sensitive environments. Feature: Durable frame 916A and a 713 lb weight with precise dimensions inform enclosure planning. Business impact: Predictable mounting and space planning reduce site integration risk. Application: Installed in existing switchgear or new enclosures within industrial facilities. Feature: Comprehensive warranty terms—one year from installation or eighteen months from shipment—offer risk mitigation during critical project phases. Business impact: Lower total cost of ownership and stronger supplier support during commissioning and startup. Application: Projects with tight timelines and asset uptime requirements.
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FAQs
When planning installation, ensure compatible panel boards support a 75 kVA, three-phase footprint with a 480 V primary and 208Y/120 V secondary. Allocate sufficient clearance for ventilation, account for the 23.42 in length, 28.22 in width, and 48.56 in height, and confirm the 713 lb weight during hoisting and mounting. Verify wiring connections per 283B and ensure the tap settings match system voltage requirements.
The KT-13 K-Factor nonlinear design is intended to mitigate harmonic heating and voltage distortion caused by modern non-linear loads, improving overall power quality. This results in steadier voltage delivery to downstream equipment, reduced stray losses, and longer life for connected motors and drives. In practice, expect improved reliability in systems with variable-speed drives and programmable controllers.
Yes. The N48M28F75AFEE provides a 75 kVA three-phase solution with a 480 V primary and 208Y/120 V secondary, designed for heavy industrial distribution. With ±2.5% taps, it maintains stable output under fluctuating line conditions, ensuring motor starters, PLCs, and control panels receive consistent voltage for reliable production throughput.
Certifications vary by market; Eaton recommends confirming regional approvals such as CE or UL with the manufacturer. The unit is noted as NEMA TP-1 efficient and fungus-proof, with electrostatic shielding and WS19 weather protection. For compliance, request current certification letters and documents from Eaton tied to your installation location.
Maintenance emphasizes periodic inspection of terminations, cooling paths, and tap settings, plus checking for contamination and seal integrity in the WS19 housing. ROI is driven by improved power quality, reduced downtime from voltage sags, and longer equipment life due to controlled temperature rise. The 1 year / 18 month warranty reduces early-life risk and supports predictable project economics.