Eaton N48M28F33EETR Nonlinear ventilated transformer - KT-13

Part Number: N48M28F33EETR
Manufacturer
Eaton
Part number
N48M28F33EETR

Quick Summary

The Eaton N48M28F33EETR nonlinear ventilated transformer conditions voltage for three‑phase power systems in critical facilities. Plants wrestle with voltage sags, harmonics, and transformer overheating that jeopardize uptime and equipment life. Certifications: Contact Manufacturer; Catalog notes confirm NEMA TP-1 efficiency. Designed to integrate with Eaton's power management ecosystem, it supports 480 V to 208Y/120 V conditioning with dual taps and a robust 300 kVA rating to meet peak load demands. With WS35 weather shielding and an electrostatically shielded design, it is well-suited for demanding plant environments, delivering reliability and long-term cost savings. Its 36.23 in length, 44.2 in width, and 75 in height footprint aligns with standard electrical rooms and Eaton Transformer Flex Center integration.

Product Information

Extended Description

N48M28F33EETR 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, 300 kVA, EE, TR
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28F33EETR
UPC
786680111617
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
3042 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
Certified test report of standard production tests for the specific serial number to be shipped NEMA TP-1 efficient.
Coil material
Aluminum
Wiring connection
292A
Type
Nonlinear ventilated transformer
Frame
919E
Tap size
2 at +2.5% FCAN 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
300 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically shielded
Weathershield
WS35
Feature: K‑Factor nonlinear transformer design with a ventilated cooling path is optimized to minimize harmonic effects and thermal hotspots under fluctuating loads. Business impact: by moderating harmonic currents and improving heat dissipation, it delivers steady efficiency, reduced insulation stress, lower cooling energy, and longer service life for downstream equipment. Application: ideal for three‑phase power conditioning in data centers, automation suites, mining facilities, and heavy manufacturing lines where voltage stability, reliability, and uptime are mission critical. Feature: Dual voltage taps (+2.5% and -2.5%) provide fine voltage adjustment without service interruptions. Business impact: operators can compensate for transformer or feeder voltage drift, reducing nuisance tripping and equipment wear. Application: supports critical drives, PLCs, and programmable controls in modern production cells that demand tight voltage regulation across varying line conditions. Feature: Aluminum winding and a robust 919E frame deliver a compact yet durable package with corrosion resistance and easier handling. Business impact: aluminum windings reduce weight and installation labor while the frame supports vibration resistance and long-term reliability in demanding spaces. Application: suitable for harsh indoor or outdoor installations, with WS35 weather shielding and electrostatic shielding to protect sensitive equipment and extend life in challenging environments. Feature: 300 kVA rating with 480 V primary and 208Y/120 V secondary, 60 Hz operation, and a 115°C rise. Business impact: provides ample headroom for startup surges, peak loads, and harmonics control while maintaining safe temperature margins, improving equipment protection and reducing fault risk. Application: ideal for data centers, process and automation rooms, and large manufacturing lines that require scalable, dependable power distribution. Feature: Built-in documentation and compatibility with Eaton’s Transformer Flex Center, plus notes on NEMA TP-1 efficiency and WS35 weathershield. Business impact: simplifies procurement, QA, and preventive maintenance by using familiar Eaton components and certified test reports, accelerating commissioning. Application: retrofit projects or new installations in regulated facilities where reliability, serviceability, and strong supplier support are essential.

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FAQs

The N48M28F33EETR supports a 480 V primary feeding a 208Y/120 V secondary in a three-phase configuration, delivering up to 300 kVA. It uses aluminum winding, a 919E frame, and is configured with taps at +2.5% and -2.5% to fine-tune voltage. The product also specifies a 60 Hz operating frequency and 115°C rise, with WS35 weather shielding.
The transformer’s nonlinear K-Factor design and ventilated construction reduce harmonic distortion and operating temperature, improving overall system efficiency and component lifespan. With 115°C rise and a robust three-phase configuration, it supports tighter voltage regulation under load swings, enabling downstream equipment such as drives and motors to maintain performance, reduce maintenance cycles, and lower energy waste in demanding industrial environments.
Installation considerations include securing the WS35 weather shield, verifying 480 V to 208Y/120 V connections, and aligning with the 292A wiring scheme and 60 Hz supply. Use the dual taps for voltage fine-tuning and ensure proper clearance for cooling. Manufacturer warranty coverage is defined by Eaton policies, and a certified test report may be provided for QA compliance.
Documentation includes the Eaton Specification Sheet for N48M28F33EETR, a transformer catalog entry in Commercial Distribution Volume 2 Tab 2, and the corresponding data sheet. The catalog notes indicate NEMA TP-1 efficiency testing, with download links to Eaton’s site, plus general installation and warranty details to support procurement and commissioning.
The 300 kVA nonlinear ventilated transformer is ideal for data centers, manufacturing lines, and automation controls requiring reliable 480 V to 208Y/120 V three-phase conditioning. Its high temperature rise capability, weather shielding, and voltage taps support startup surges and harmonics mitigation, helping facilities maintain uptime, protect sensitive drives, and optimize energy use across power distribution networks.