Eaton N29R28T22A K-Factor nonlinear transformer - UL Listed
Part Number: N29R28T22A
Quick Summary
Eaton N29R28T22A K-Factor nonlinear ventilated transformer delivers reliable power conditioning for large industrial drives and critical data-center loads. In practice, electrical designers confront heat, voltage swings, and limited installation space, so a high-capacity, thermally robust solution is essential. This model carries UL Listed safety certification and is designed for 60 Hz operation with a 150°C rise, supporting continuous performance under demanding conditions. Its aluminum windings and electrostatic shield reduce stray losses and EMI, while the WS34 weather shield adds outdoor-ready protection. Taps for +5% and -5% adjustments help maintain voltage stability, improving system uptime and reducing energy waste in dynamic load profiles.
Product Information
Extended Description
N29R28T22A Eaton: K-Factor Non Linear Transformer, Ventilated, K-13, Three-phase, PV: 208V, Taps: 1 at +5% FCAN, 2 at -5% FCBN, SV: 208Y/120V, 150°C, 225 kVA , Al windings , Elec. Shield, Frame: 918A, uses WS34
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N29R28T22A
UPC
786680014550
Product Length/Depth
30.68 in
Product Height
62.18 in
Product Width
31.44 in
Product Weight
1500 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
UL Listed
Catalog Notes
Model A
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
918A
Tap size
1 at +5% FCAN, 2 at -5% FCBN
Frequency rating
60 Hz
Kva Rating
225 kVA
Phase
Three-phase
Primary voltage
208 V
Secondary Voltage
208Y/120 V
Temperature rise
150 °C rise
Special features
Electrostatically Shielded
Weathershield
WS34
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N29R28T22A
Feature: K-Factor nonlinear, ventilated design; Business Impact: lowers thermal stress and improves transient response in harmonic-rich environments; Application: drives, controls, and large motors in manufacturing and process facilities. This yields predictable losses and better overall efficiency. Feature: Aluminum windings; Business Impact: enhances heat dissipation and reduces copper weight-related constraints; Application: space-constrained installations where cooling is critical. Feature: Three-phase, 225 kVA rating; Business Impact: supports large load centers with a single, centralized transformer; Application: data centers and industrial plants with high, variable loads. Feature: Taps at +5% FCAN and -5% FCBN; Business Impact: tighter voltage regulation under load changes; Application: critical power systems with fluctuating input. Feature: Electrostatic shield and WS34 Weathershield; Business Impact: EMI reduction and outdoor durability; Application: outdoor substations and harsh environments. Feature: Frame 918A; Business Impact: standardized mounting and compatibility with Eaton installations; Application: retrofit or field-mounted applications with minimal integration effort. Feature: 60 Hz operation and 150°C rise; Business Impact: reliable performance in standard electrical systems and high-temperature environments; Application: heavy industry and campus power networks. Feature: UL Listed certification; Business Impact: safety assurance for compliance and code adherence; Application: facilities requiring recognized safety approvals.
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FAQs
The N29R28T22A is designed specifically for 208 V three-phase service with a 208Y/120 V secondary. It operates at 60 Hz and delivers 225 kVA, making it well-suited for large drives and central power distribution. Installers should plan for the 1500 lb mass and space required by a 62 inch tall enclosure, ensuring proper crane access and mounting clearances.
Key specs include 225 kVA, three-phase configuration, 208 V primary, 208Y/120 V secondary, 60 Hz frequency, and 150°C rise. The transformer features taps at +5% FCAN and 2 taps at -5% FCBN, allowing voltage adjustments to maintain output stability under fluctuating loads and input conditions, reducing voltage excursions on sensitive equipment.
Yes, the unit is equipped with WS34 weather shield and an electrostatic shield, lending outdoor durability and EMI suppression. Aluminum windings enhance thermal management, and its UL Listed certification supports safe operation in industrial outdoor or harsh indoor environments, provided proper mounting and weather considerations are observed.
The N29R28T22A carries UL Listed certification, which supports safety compliance for many electrical installations and code adherence. While other certifications such as CE or IP ratings are not listed in the provided data, UL Listing is a widely recognized indicator of safety conformance for industrial transformers in North America.
Plan for a 1500 lb unit with dimensions around 30.68 in L, 31.44 in W, and 62.18 in H, plus mounting and crane access. The 225 kVA rating and voltage regulation features (taps and shield) translate to improved uptime and reduced energy waste in variable load scenarios, supporting long-term total cost of ownership (TCO) savings.