Eaton N48M47B33EE transformer - UL Listed
Part Number: N48M47B33EE
Quick Summary
Eaton N48M47B33EE transformer provides reliable three-phase power transformation for data centers, manufacturing floors, and other industrial facilities. Operators and engineers face harmonic-related losses, overheating, and voltage variability that impede uptime and increase maintenance cost. UL Listed and NEMA TP-1 compliant, with electrostatic shielding and an 80 °C rise, these features support safer, compliant installations. Designed for 480 V input and 480Y/277 V output with ±2.5% taps, it enables flexible, scalable power distribution with measurable lifecycle savings. In practice, the unit's aluminum windings and ventilated design reduce operating temperatures, supporting continuous duty in demanding environments. This combination translates to lower maintenance frequency, improved reliability, and a reduced total cost of ownership for facilities dependent on clean, stable power.
Product Information
Extended Description
N48M47B33EE 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, 80°C rise, 300 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47B33EE
UPC
786680044472
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
80 °C rise
Special features
Electrostatically Shielded
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N48M47B33EE
The N48M47B33EE offers a K-Factor nonlinear ventilated design that actively manages harmonic currents and improves heat dissipation. This reduces hotspot temperatures and supports higher uptime in dense panel environments where harmonics threaten performance. The result is more stable voltage regulation, longer service intervals, and greater reliability for drives, PLCs, and industrial controllers. Voltage regulation is enhanced by two +2.5% taps and four -2.5% taps, allowing precise adjustments to accommodate supply swings without external equipment. The business impact is tighter voltage budgets, reduced voltage drop along feeders, and minimized nuisance trips in sensitive lines. This is especially valuable in facilities with long feeders or frequent production-line reconfigurations. With 480 V primary and 480Y/277 V secondary in a three-phase 300 kVA package, the unit fits standard industrial power distribution schemes. Its built-in taps support operation across utility variations, simplifying panel design and reducing separate transformers. Applications include machine centers, distribution boards, and data-center peripherals that require reliable, low-distortion power. UL Listed and NEMA TP-1 compliant, the transformer also features electrostatic shielding to reduce EMI and improve signal integrity in nearby control systems. The 80 °C rise provides solid thermal margin under peak loads, enabling safer operation in cabinets with limited cooling. These certifications and construction details help meet regulatory expectations without external filters. Coil material is aluminum, delivering a lighter, cost-effective solution with good conductivity and corrosion resistance. This improves installation ergonomics and reduces shipping costs while maintaining robust short-circuit and overload performance. The ventilated design supports efficient cooling in compact electrical rooms and supports future capacity upgrades. Designed for 60 Hz operation in common catalog contexts, the N48M47B33EE aligns with standard requirements for 480 V to 480Y/277 V power. Enterprises gain predictable performance, lower maintenance needs, and a stronger ROI through improved energy efficiency and reduced downtime.
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FAQs
This three-phase 300 kVA transformer is designed for standard industrial panel integration. Ensure adequate cabinet clearance for ventilation, secure mounting to a rigid frame, and proper wiring to the 480 V primary and 480Y/277 V secondary. Consider the unit's ventilated construction and place it in a location with sufficient airflow to maintain the 80 °C rise margin. Use compliant cable sizing and routing to minimize EMI and ensure accessibility for tapping adjustments.
The K-Factor nonlinear design helps manage harmonic currents by distributing loads more effectively and reducing peak flux hotspots. This translates to cooler operation, less stray heat, and higher reliability under harmonic-rich loads. For facilities with variable speed drives and converters, the transformer maintains voltage quality and extends service life while supporting energy efficiency goals.
Yes. The 480 V primary and 480Y/277 V secondary configuration is ideal for data centers and industrial plants needing reliable medium-voltage distribution to 277 V circuitry. With ±2.5% taps for voltage regulation, it accommodates utility swings and long feeders, reducing the need for additional upstream or downstream conditioning equipment.
The N48M47B33EE is UL Listed and NEMA TP-1 compliant, with electrostatic shielding to minimize EMI. These certifications support safe, code-compliant installations in commercial and industrial environments, while the 80 °C rise rating provides thermal margin for peak loading scenarios.
The transformer offers improved harmonic handling, reduced EMI, and reliable operating margins, which translate to lower maintenance frequency and fewer unplanned downtimes. The combination of efficiency, solid thermal design, and flexible tapping supports a stronger return on investment through energy savings and extended equipment life in demanding production environments.