Eaton N48M47F33EE Transformer - UL Listed, NEMA TP-1
Part Number: N48M47F33EE
Quick Summary
Eaton K-Factor nonlinear ventilated transformer provides robust power conditioning for industrial and commercial systems. Designers and maintenance teams struggle with voltage swings and heat when serving nonlinear loads and distributed controls. This unit ships UL Listed and NEMA TP-1 compliant, with electrostatic shielding to reduce EMI and improve reliability in harsh environments. The 480 V primary and 480Y/277 V secondary arrangement supports dependable distribution for motor drives and critical controls, while taps at +2.5% and -2.5% enable precise voltage regulation as load and input conditions vary. By combining efficiency with proven protection, it delivers lower lifecycle costs and avoids unexpected downtime in manufacturing and infrastructure applications.
Product Information
Extended Description
N48M47F33EE Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 480V, Taps: 2 at +2.5% /4 at -2.5%, SV 480Y/277V, 115°C rise, 300 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47F33EE
UPC
786680044298
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 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
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
480 Y/277 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47F33EE
The K-Factor nonlinear ventilated design mitigates harmonic currents, reducing stray heating and extending transformer life by maintaining cooler operation under nonlinear loads. This translates to higher reliability and predictable cooling requirements in facilities with variable-speed drives, UPS systems, and switching power supplies. For engineers, the result is fewer unplanned outages and easier compliance with internal energy-management standards, while maintenance teams benefit from simpler thermal profiling and reduced cooling overhead. With a 300 kVA rating and a 480 V primary to 480Y/277 V secondary configuration, the transformer supports tighter distribution design for panelboards and motor-control centers, enabling safer load sharing and faster commissioning during plant startups. The available taps—2 at +2.5% and 4 at -2.5%—provide practical in-field voltage compensation to stabilize downstream equipment during input fluctuations. Aluminum winding construction reduces weight and improves heat dissipation, aiding installation in tight spaces while preserving efficiency. Electrostatic shielding adds EMI protection crucial for dense plant environments with modern controls and communication lines, and the UL Listed plus NEMA TP-1 efficient design supports compliant procurement and long-term reliability. A one-year warranty from installation or 18 months from shipment further mitigates ownership risk while delivering predictable ROI.
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FAQs
For proper installation, plan for a well-ventilated enclosure with adequate clearance for heat dissipation and easy access to the voltage taps. Ensure secure mounting to reduce vibration and select a location with stable ambient conditions to maintain performance within the specified 115 °C rise. Verify wiring to 480 V primary and 480Y/277 V secondary per electrical diagrams, and coordinate with control panels and motor drives to minimize harmonic interaction and EMI impact.
This unit is a three-phase transformer rated at 300 kVA, with a 480 V primary and 480Y/277 V secondary, operating at 60 Hz. It includes taps at +2.5% and -2.5% to adjust voltage in response to line variations. The combination enables stable voltage delivery to non-linear loads while supporting reliable operation of drives and controls, reducing nuisance tripping and improving overall system efficiency.
Yes. The N48M47F33EE employs a K-Factor nonlinear design that mitigates harmonic currents, reducing stray heating and improving cooling efficiency under non-linear loading. This makes it particularly suitable for systems with variable-speed drives, switch-mode power supplies, and dense electronic controls, delivering consistent voltage quality and extending transformer life in challenging industrial environments.
The transformer is UL Listed and NEMA TP-1 compliant, with an efficient design aligned to NEMA TP-1 standards. These certifications support regulatory compliance, reduce procurement risk, and facilitate downstream approvals. The inclusion of electrostatic shielding adds EMI protection, making it suitable for plants with dense electronic instrumentation and communications networks.
The unit’s combination of K-Factor protection, EMI shielding, and high-efficiency design contributes to reduced energy losses and lower cooling costs, improving total cost of ownership. With a one-year warranty (18 months from shipment), maintenance planning is straightforward, and the rugged aluminum windings ease inspection and replacement tasks, supporting longer service intervals and faster payback in capital-intensive industrial environments.