Eaton N48M47F55EE Transformer - UL Listed, 500 kVA
Part Number: N48M47F55EE
Quick Summary
Eaton N48M47F55EE transformer is a 500 kVA, three-phase device that delivers reliable voltage regulation from 480 V to 480Y/277 V for industrial power distribution. Operators frequently contend with voltage sags and harmonic distortion under varying loads; this K-Factor nonlinear ventilated transformer helps manage those challenges with improved thermal performance. UL Listed and NEMA TP-1 compliant, it also features NEMA TP-1 efficiency conformance and electrostatic shielding to support safer, more predictable operation. For engineers and procurement teams, the combination of rugged performance and regulatory alignment translates to fewer field adjustments, lower maintenance, and a smoother path to compliant power delivery in commercial, industrial, and data-center environments.
Product Information
Extended Description
N48M47F55EE 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, 500 kVA, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N48M47F55EE
UPC
786680044304
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
500 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 - N48M47F55EE
Feature → Business Impact → Application: The N48M47F55EE utilizes a K-Factor nonlinear design in a ventilated construction to mitigate overheating caused by harmonic-rich loads, reducing insulation stress and extending transformer life. This translates to lower unexpected downtime and tighter voltage control in facilities with mixed loads, such as manufacturing lines and data centers. Application notes indicate improved reliability when serving critical equipment sensitive to voltage fluctuations. Feature → Business Impact → Application: Voltage taps at +2.5% and -2.5% provide rapid, on-site voltage regulation without frequent tap changer operations, cutting maintenance costs while stabilizing downstream equipment in environments with fluctuating supply. This is ideal for facilities with variable demand and intermittent power quality challenges. Feature → Business Impact → Application: A 500 kVA three-phase unit with 480 V primary and 480Y/277 V secondary supports scalable power distribution for mid-size plants and commercial campuses, enabling seamless integration with existing Eaton or legacy infrastructure and simplifying commissioning. Feature → Business Impact → Application: Aluminum coil windings reduce weight and material costs while delivering robust performance, enabling easier handling during installation and long-term savings on replacement parts in high-cycle environments. Feature → Business Impact → Application: Electrostatic shielding minimizes EMI/RFI coupling with sensitive control panels and communication systems, improving signal integrity in data centers and automated manufacturing lines. Feature → Business Impact → Application: UL Listed and NEMA TP-1 compliant, with efficient operation per NEMA TP-1, provide regulatory assurance and lower energy losses, supporting compliance-driven procurement and total-cost-of-ownership improvements for facilities pursuing green and cost-efficient power management.
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FAQs
For a 500 kVA, three-phase transformer, ensure dedicated pad or rack-mountable installation with adequate ventilation, access for cooling air, and clearance around the enclosure per local codes. Provide 480 V primary and 480Y/277 V secondary terminations with correct torque on lugs, and verify proper grounding and path to UL-compliant disconnects to maintain safety and performance.
The K-Factor nonlinear design accounts for non-linear loads by reducing core overheating and voltage drop under harmonic conditions. This improves thermal resilience and efficiency, especially in facilities with variable loads and sensitive equipment, helping meet NEMA TP-1 efficiency expectations while maintaining reliable voltage regulation.
Yes. With 480 V to 480Y/277 V output, 60 Hz operation, and electrostatic shielding, the N48M47F55EE is well-suited for data centers and manufacturing lines where stable voltage, EMI/RFI suppression, and reliable startup are critical. The unit’s taps and 115 °C rise further support consistent performance under fluctuating loads.
The transformer is UL Listed and NEMA TP-1 compliant, including NEMA TP-1 efficiency considerations. These certifications ensure safety, performance under defined load conditions, and energy efficiency, aligning with procurement policies and facilitating regulatory compliance in many industrial facilities.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Maintenance is typically minimal due to robust construction and quality materials, with the UL/NEMA TP-1 compliance and efficient design contributing to lower life-cycle costs, reduced energy losses, and superior long-term reliability.