Eaton NT20P11F15CU Transformer - UL Listed K-Factor

The NT20P11F15CU uses a K‑Factor nonlinear ventilated transformer design to soften harmonic currents, improving reliability for sensitive equipment and reducing maintenance costs in high‑load environments. This feature translates to lower thermal stress and extended life for downstream components, especially in data centers or manufacturing lines where harmonics are common. The copper windings with an electrostatic shield provide efficient power transfer and enhanced fault isolation, improving safety margins and minimizing nuisance trips in protective relays during peak loading. With a 60 Hz frequency rating and a 15 kVA capacity, the transformer supports steady power for critical loads while enabling precise tapping (1 at +5%, 2 at −5% FCBN, 2 at +2.5%, 4 at −2.5%), allowing site‑level voltage regulation for variable supply conditions. This compatibility helps installers optimize panel layouts and reduce field adjustments during commissioning. The WS11 Weathershield and 816 frame deliver rugged outdoor suitability and straightforward mounting, enabling flexible installation in harsh environments without extra enclosure costs. The unit’s weight (273 lb) and compact footprint fit common racking and floor plans, simplifying modernization projects. UL Listed certification ensures compliance with electrical safety standards, while the durable construction minimizes downtime during routine maintenance and service life. In practice, this transformer supports efficiency gains, improved regulatory compliance, and meaningful reductions in total cost of ownership when deployed across distributed power architectures.