Eaton N48M37T33EE Transformer - UL Listed NEMA TP-1
Part Number: N48M37T33EE
Quick Summary
Eaton K-Factor nonlinear ventilated transformer powers robust power distribution for industrial facilities and automated lines. Heat buildup and voltage fluctuations often erode uptime and spike cooling and energy costs. UL Listed, NEMA TP-1 Compliant, and NEMA TP-1 Efficient certifications help ensure regulatory alignment and reliable performance. With a three-phase 300 kVA rating, 480 V primary, and 380Y/220 V secondary, it scales with growing automation needs. The rugged aluminum coil and weather protection simplify installation and long-term operation in industrial environments, delivering measurable energy efficiency.
Product Information
Extended Description
N48M37T33EE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 380Y/220V, 150°C rise w/ 200°C insulation systeam, 300 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M37T33EE
UPC
786680075261
Product Length/Depth
36.23 in
Product Height
75 in
Product Width
44.2 in
Product Weight
2496 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
Coil material
Aluminum
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
380 Y/220 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS35
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M37T33EE
Feature → Business Impact → Application: The K-Factor nonlinear ventilated design with an electrostatically shielded coil provides superior harmonic handling, reducing overheating and extending equipment life; this translates to lower cooling demand and higher availability in continuous production lines. Application: manufacturing floors and automated systems benefit from steadier voltages and fewer derates. Feature → Business Impact → Application: A three-phase 480 V input and 380Y/220 V secondary standardizes power delivery to control panels and industrial automation equipment, enabling straightforward integration with existing switchgear and panelboards. Application: automation cabinets, robotics cells, and process control rooms gain faster deployment and fewer compatibility issues. Feature → Business Impact → Application: Voltage taps at +2.5% and -2.5% enable precise voltage regulation under varying loads, reducing equipment stress and improving margin for peak demand periods. Application: critical machinery and CNC systems. Feature → Business Impact → Application: A 150 °C rise rating with a 200 °C insulation system supports operation in harsh environments, lowering replacement risk in plants with elevated ambient temperatures. Application: outdoor substations and warm production areas. Feature → Business Impact → Application: The WS35 Weathershield and NEMA TP-1/UL certifications provide dependable performance in demanding settings, ensuring regulatory compliance and traceable quality. Application: data centers, hospital supply rooms, and evergreen installations. Feature → Business Impact → Application: Aluminum coil construction and a robust 919E frame offer durable, low-maintenance power conversion for long-term operational stability. Application: heavy-duty industrial environments and retrofit projects.
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FAQs
Plan for a three-phase 480 V primary and 380Y/220 V secondary feed, ensure proper ventilation and clearance around the 919E frame, and align taps at +2.5% and -2.5% to match load conditions. Use aluminum coil connections and follow UL-listed installation practices; include WS35 weather shield if outdoors. Verify control panel compatibility and protective device coordination before energizing.
The unit delivers a 300 kVA VA rating at 60 Hz with a 150 °C rise (200 °C insulation system), three-phase input, and dual secondary voltage 380Y/220 V. K-Factor nonlinear design handles harmonic distortion, while electrostatic shielding minimizes EMI. It integrates with standard automation panels and robotics drives, offering reliable power for demanding manufacturing environments.
Yes. It is UL Listed and NEMA TP-1 Compliant, with additional NEMA TP-1 Efficient notes in catalog data. These certifications support regulatory alignment for critical infrastructure projects and provide confidence in performance under continuous operation, in both indoor and weather-protected outdoor environments.
Industrial automation, data-center adjacencies, and large manufacturing floors benefit due to reliable voltage regulation, robust heat tolerance, and EMI control. The WS35 Weather Shield supports outdoor installations, while the +/− taps aid varying load profiles. This makes it suitable for retrofit projects and new builds requiring scalable, compliant power distribution.
ROI comes from improved uptime, lower cooling energy use due to efficient load handling, and reduced switching losses through stable voltage delivery. Maintenance focuses on periodic insulation checks, tap position verification, and weather shield integrity. The 1-year warranty (or 18 months from shipment) complements available service options for long-term reliability.