Eaton N29R28F12A K-Factor transformer - UL Listed
Part Number: N29R28F12A
Quick Summary
The Eaton N29R28F12A K-Factor nonlinear ventilated transformer delivers reliable three-phase power for demanding industrial sites. Engineers struggle with heat buildup and non-linear loads that shorten transformer life, creating outages and maintenance headaches. UL Listed safety certification is provided. In practice, this transformer supports tight voltage regulation, effective shielding, and compatibility with WS19 weather protection to keep critical equipment running. The unit delivers 112.5 kVA across 208 V primary and 208Y/120 V secondary, with +5% and -5% tap adjustments for precise voltage matching. Its aluminum windings, electrostatic shield, and WS19 weather shield enhance heat dissipation and environmental resilience in outdoor substation or tight equipment rooms. Warranty follows Eaton policy, with one year from installation or eighteen months from shipment, reinforcing total cost of ownership considerations.
Product Information
Extended Description
N29R28F12A 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, 115°C, 112.5 kVA , Al windings , Elec. Shield, Frame: 916A, uses WS19
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
N29R28F12A
UPC
786680014604
Product Length/Depth
23.42 in
Product Height
48.56 in
Product Width
28.22 in
Product Weight
860 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
916A
Tap size
1 at +5% FCAN, 2 at -5% FCBN
Frequency rating
60 Hz
Kva Rating
112.5 kVA
Phase
Three-phase
Primary voltage
208 V
Secondary Voltage
208Y/120 V
Temperature rise
115 °C rise
Special features
Electrostatically Shielded
Weathershield
WS19
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - N29R28F12A
Feature: K-13 nonlinear design paired with a ventilated housing. Benefit: improved handling of non-linear harmonic currents and hotspot reduction, extending transformer life in high-demand environments. Application: Ideal for facilities with variable-speed drives and non-linear loads, such as steel mills and data centers. The business impact is lower maintenance costs and reduced risk of unplanned outages. Feature: 112.5 kVA three-phase rating with 208 V primary and 208Y/120 V secondary. Benefit: streamlined distribution to panelboards and feeders while maintaining voltage integrity. Application: suitable for compact plant sections or switchgear rooms where footprint matters, enabling simpler installation and reduced wiring complexity. Feature: Tap changes (+5% FCAN, -5% FCBN). Benefit: enhanced voltage regulation under fluctuating supply, improving equipment performance and protecting sensitive loads. Application: sites with marginal utility voltage or long feeders. Feature: Aluminum windings with electrostatic shield and WS19 weather shield. Benefit: superior heat dissipation, EMI shielding, and corrosion resistance in outdoor or harsh indoor environments. Application: outdoor substations or exposed installations where reliability is critical. Feature: Frame 916A; dimensions 23.42 in L, 28.22 in W, 48.56 in H; weight 860 lb. Benefit: clear mechanical fit, mounting compatibility, and predictable handling for installers. Application: facility upgrade projects or new builds with strict space planning. Feature: UL Listed certification and Eaton warranty. Benefit: compliance assurance and dependable post-sale support, reducing risk in regulated facilities. Application: safety-conscious deployments across manufacturing, food & beverage, and process industries.
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FAQs
The N29R28F12A is designed for three-phase power distribution with a WS19 weather shield, frame 916A, and aluminum windings. It fits standard industrial enclosures and switchgear bays where ventilation and shielding are priorities. Ensure adequate clearance for cooling and access to taps (+5% and -5%) for voltage adjustments during commissioning.
This transformer provides 112.5 kVA in a three-phase configuration, with a primary voltage of 208 V and a secondary voltage of 208Y/120 V. It operates at 60 Hz, features taps at +5% FCAN and -5% FCBN, and uses aluminum windings with an electrostatic shield for improved safety and performance.
The K-Factor nonlinear design capability helps manage harmonic currents from non-linear loads, reducing heat buildup and hotspot formation. This translates to higher reliability, longer service life, and lower maintenance costs in facilities with VFDs and other non-linear equipment.
The N29R28F12A is UL Listed, providing recognized electrical safety certification. Warranty follows Eaton’s policy: one year from installation or eighteen months from shipment, whichever comes first, offering solid protection for commissioning and deployment.
Plan for proper ventilation around the unit, ensure WS19 weather protection where needed, and provide space for tapping operations (+5%, -5%). Use aluminum windings and maintain shielding clearance to preserve EMI protection. Accurate mounting of frame 916A and weight handling (860 lb) ensures stable operation and reduces vibration-related wear.