Eaton N48M28T30ZEE K-Factor NL Vent Transformer - UL Listed
Part Number: N48M28T30ZEE
Quick Summary
Eaton N48M28T30ZEE is a K-Factor nonlinear ventilated transformer for three-phase power distribution in industrial facilities. Engineers often battle rising efficiency targets and crowded electrical rooms, seeking equipment that fits without sacrificing performance. This transformer is UL Listed and NEMA TP-1 compliant, with 480 V primary and 208Y/120 V secondary, delivering safe, efficient power. In practice, its ready-to-install base, 30 kVA rating, and ±2.5% taps help meet load variations and uptime targets while minimizing space and installation time. Designed for 60 Hz operation, it uses aluminum windings and a robust 912BZ frame. With 150°C rise and 200°C insulation system, it maintains performance under elevated loads.
Product Information
Extended Description
N48M28T30ZEE 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, 30 kVA, ZE, E
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M28T30ZEE
UPC
786680050381
Product Length/Depth
16.5 in
Product Height
30 in
Product Width
23 in
Product Weight
330 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
Nema TP-1 efficient, Easy install base
Coil material
Aluminum
Frame
912BZ
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Volt ampere rating
30 kVA
Phase
Three-phase
Primary voltage
480 V
Secondary Voltage
208 Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS38
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M28T30ZEE
Feature: K-Factor nonlinear design with electrostatically shielded construction provides improved harmonic handling and reduced EMI, translating to cleaner voltage profiles for sensitive equipment and fewer nuisance trips in manufacturing lines. Business Impact: This supports reliable operation of drives, PLCs, and sensors, lowering fault rates and maintenance costs. Application: Ideal for factories deploying variable-speed drives and mixed-load feeders where power quality directly affects uptime and productivity. Feature: Taps at 2 at +2.5% and 4 at -2.5% enable voltage regulation under load swings, reducing motor stress and improving control accuracy. Application: Useful on plant feeders and machinery with wide demand shifts. Feature: Aluminum coil material and 912BZ frame reduce weight while maintaining strength, easing installation and service. Application: Field crews benefit from easier handling in retrofit and new-build projects. Feature: Weathershield WS38 and NEMA TP-1 compliance increase reliability in harsh environments, including outdoor installations. Application: Outdoor substations or exposed equipment housings benefit from enhanced protection. Feature: 150°C rise and 200°C insulation improve thermal margins, supporting prolonged duty cycles in demanding conditions. Application: High-load processes with ambient heating and continuous operation. Feature: 30 kVA rating with 60 Hz operation ensures compatibility with common facility power systems and downstream loads. Application: Data centers, manufacturing lines, and packaging systems.
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FAQs
The unit uses a 912BZ frame with a ready-to-install base and aluminum windings for straightforward mounting. It supports 60 Hz operation and offers taps at +2.5% and -2.5% for voltage regulation. Ensure adequate ventilation, proper wiring for primary and secondary circuits, and use the WS38 weather shield if installed outdoors. Follow UL-listed installation guidelines for safe grounding and secure enclosure fit.
Key specs include a 30 kVA rating, three-phase 60 Hz operation, primary 480 V, secondary 208Y/120 V, and taps at +2.5% / -2.5%. The transformer features electrostatic shielding for EMI control and a 150°C rise with a 200°C insulation system, enabling reliable performance under higher ambient temperatures and load surges common in manufacturing lines.
Yes. With UL Listed certification and NEMA TP-1 compliance, the transformer meets safety and efficiency standards for regulated spaces. Its compact footprint (16.5 in depth, 23 in width, 30 in height) and 330 lb weight support easier integration in data halls or factory floor enclosures, while the 30 kVA rating handles diverse feeder and panelboard needs.
The N48M28T30ZEE is UL Listed and NEMA TP-1 compliant, reflecting adherence to safety and efficiency standards. It also features electrostatic shielding, a WS38 weather shield option for outside use, and a high-temperature insulation system. These protections reduce EMI, enhance reliability in harsh environments, and support regulatory compliance in controlled environments.
ROI is driven by efficiency, reduced maintenance, and extended uptime. The K-Factor nonlinear design minimizes harmonics, while the taps enable voltage stability that lowers motor wear and trims energy waste. Easy installation and durable construction reduce field labor and downtime, accelerating payback in applications with variable loads and strict power quality requirements.