Eaton N29R47F22CUEESR Transformer - 225 kVA, Certified Sound
Part Number: N29R47F22CUEESR
Quick Summary
Eaton N29R47F22CUEESR transformer is a three-phase power component designed to deliver stable 208 V primary to 480Y/277 V secondary for demanding industrial applications. Engineers frequently grapple with voltage instability, harmonics, and unplanned downtime that erode efficiency and output. This unit aligns with NEMA TP-1 efficient design and includes a certified sound level report to support compliance and quiet performance. With 225 kVA capacity at 60 Hz, plus taps at +5% and -5%, it provides dependable regulation for motor drives, controls, and power-sensitive equipment. Copper windings in a rugged EE frame (918A) enhance thermal performance and longevity, while the ventilation design supports reliable operation in warm environments and retrofit projects.
Product Information
Extended Description
N29R47F22CUEESR Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (3-phase), PV 208V, Taps: 1 at +5%/2 at -5%, SV 480Y/277V, 115°C rise, 225 kVA, Copper windings, EE, SR
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N29R47F22CUEESR
UPC
786680111518
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
2650 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.
Certifications
Contact Manufacturer
Catalog Notes
NEMA TP-1 efficient Certified sound level report.
Coil material
Copper
Wiring connection
315A
Type
Nonlinear ventilated transformer
Frame
918A
Tap size
1 at +5% FCAN, 2 at -5% FCBN
Frequency rating
60 Hz
Volt ampere rating
225 kVA
Phase
Three-phase
Primary voltage
208 V
Secondary Voltage
480 Y/277 V
Temperature rise
115 °C rise
Special features
Electrostatically shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N29R47F22CUEESR
225 kVA three-phase transformer with 208 V primary and 480Y/277 V secondary delivers heavy-load capability and stable voltage to manufacturing lines and data-center-like environments, reducing flicker and downtime. This configuration supports critical loads such as controls, drives, and panels, improving overall plant productivity and energy efficiency. The K-Factor nonlinear ventilated design manages harmonic currents, improving efficiency and extending transformer life while mitigating overheating in high-demand facilities and busy load profiles. Copper windings offer low resistive losses and robust performance under elevated ambient temperatures, supporting longer service life and reduced maintenance costs in harsh environments. The +5%/−5% tap system enables precise voltage regulation during load changes or supply disturbances, minimizing equipment stress and improving motor performance across varying input conditions. The 115°C rise capability and the WS34 weathershield option provide resilient operation in outdoor or challenging installations, supporting faster deployments and fewer weather-related outages. Installation is streamlined by a compact frame (918A) and a 315A wiring connection, allowing easier integration into existing switchgear and bus duct layouts, with benefits for retrofit projects and new builds alike. NEMA TP-1 efficiency certification and a dedicated sound level report address noise and regulatory considerations, helping facilities meet both performance and compliance targets while delivering predictable maintenance workflows and total cost of ownership improvements.
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FAQs
Plan for a three-phase connection with a 315 A wiring path and the 918A frame footprint. Ensure adequate clearance for ventilation, secure mounting, and alignment with existing switchgear. Use the +5% and −5% taps to fine-tune voltage during commissioning and verify voltage balance at the load bus.
The unit is a 225 kVA, 60 Hz, three-phase transformer with a 208 V primary and 480Y/277 V secondary. It features copper windings, a 115°C rise rating, and taps of +5% and −5%. Frame 918A and 315 A wiring connection support robust installation in standard electrical rooms.
Yes. The K-Factor nonlinear ventilated design helps manage harmonics, improving power quality, while the 225 kVA rating and voltage flexibility support critical loads such as racks, servers, motors, and drives. Copper windings and efficient design enhance reliability and thermal performance in continuous operation environments.
It includes a NEMA TP-1 efficient design and a certified sound level report to support compliance with noise and efficiency criteria. If specific regional certifications are required, Eaton can provide additional documentation on request.
Copper windings reduce losses and improve efficiency, contributing to lower operating costs over the life of the unit. The robust 115°C rise rating and weather-shield option reduce maintenance frequency in hot or outdoor environments, supporting predictable uptime and a favorable return on investment.