Eaton NT20P11F37 Ventilated K-Factor Transformer - UL Listed
Part Number: NT20P11F37
Quick Summary
Eaton NT20P11F37 nonlinear ventilated transformer delivers reliable power conditioning for data centers, manufacturing lines, and commercial facilities. In tight electrical rooms, heat buildup and downtime threaten efficiency and safety. UL Listed certification confirms adherence to essential electrical safety standards. With a 37.5 kVA rating, primary 240/480 V and secondary 120/240 V, it supports critical loads with precise voltage regulation. Designed as a K-13 nonlinear ventilated transformer, it suits industrial power management applications while offering durability through aluminum windings and a WS11 weather shield. This combination helps engineering and procurement teams streamline buys, reduce risk, and improve uptime across automation and facility networks.
Product Information
Extended Description
NT20P11F37 Eaton: K-Factor Transformer, Ventilated, K-13, Single-phase, PV: 240 X 480V, Taps: 1 at +5% FCAN, 2 at -5% FCBN X 2 at +2.5% FCAN, 4 at -2.5% FCBN, SV: 120/240V, 115°C, 37.5 kVA , Al windings, Elec. Shield, Frame: 818, uses WS11
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11F37
UPC
786680024627
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.89 in
Product Weight
320 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
Coil material
Aluminum
Type
Ventilated transformer
Design
K-13
Frame
818
Tap size
1 at +5% FCAN, 2 at -5% FCBN x 2 at +2.5% FCAN, 4 at -2.5% FCBN
Frequency rating
60 Hz
Kva Rating
37.5 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Special features
Electrostatically shielded
Weathershield
WS11
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT20P11F37
Feature → Business Impact → Application: The NT20P11F37 employs a K-Factor nonlinear ventilated transformer with a K-13 design to better tolerate harmonic currents on modern loads. This approach minimizes overheating and insulation stress, boosting reliability for long-running equipment. Applications include data centers, automated manufacturing lines, and mixed-load facilities where precise voltage regulation and steady power delivery translate into higher uptime and lower maintenance costs. Feature → Business Impact → Application: Ventilated cooling, aluminum windings, an electrostatic shield, and the WS11 weather shield work together to improve heat dissipation and electrical isolation. The result is cooler operation under full load and reduced risk of insulation deterioration in harsh environments. Ideal for outdoor equipment rooms, factory floors with limited clearance, and outdoor substations where rugged durability matters. Feature → Business Impact → Application: The transformer provides flexible voltage configuration with primary 240/480 V and secondary 120/240 V, plus multiple taps. This enables precise voltage regulation to compensate for feeder losses and line swings, reducing voltage-related equipment stress. Use cases include critical automation panels, motor drives, and panel builds that require stable supply across varied supply conditions. Feature → Business Impact → Application: A 37.5 kVA single-phase rating at 60 Hz delivers substantial capacity from a compact footprint, consolidating what would otherwise require multiple units. This simplifies procurement, reduces space, and lowers install time for control centers and transformer rooms. The unit’s UL Listed safety certification and 818 frame with 20.36 in length, 22.89 in width, and 37.59 in height support straightforward rack or pedestal mounting. Feature → Business Impact → Application: The NT20P11F37 includes a robust 1-year warranty (or 18 months from shipment) and Eaton’s reliability heritage, ensuring predictable total cost of ownership. With light-touch maintenance and Eaton spare part support, it minimizes downtime in mission-critical facilities.
Get a Quick Quote for a Eaton NT20P11F37
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton NT20P11F37?
Enquire Now
FAQs
Yes. The NT20P11F37 supports 240/480 V primary and 120/240 V secondary at 60 Hz, with aluminum windings, an electrostatic shield, and the WS11 weather shield for rugged, outdoor-ready installations. UL Listed certification confirms safety compliance; follow Eaton installation guidance for mounting, clearances, and wiring.
The K-Factor nonlinear design, specifically K-13, improves tolerance to harmonic currents, reducing overheating and insulation stress. This translates into greater reliability and longer service life for connected loads, especially in data centers, automation panels, and motor drive applications where harmonic content is common. Real-world results include steadier voltages and fewer unexpected outages.
Ideal applications include critical automation panels, motor control centers, data center power conditioning, and commercial facility loads requiring stable voltage under fluctuating supply. The NT20P11F37's single-phase 37.5 kVA rating, 240/480 V primary, 120/240 V secondary, and WS11 shield make it suitable for compact transformer rooms and equipment racks where space and reliability matter.
The NT20P11F37 carries UL Listed certification, confirming compliance with essential electrical safety standards. When integrating into regulated spaces, reference the Eaton installation guides, ensure proper enclosure rating, and coordinate with local electrical codes. Supporting documents, including the data sheet and spec sheet, assist validation, safety, and procurement reviews.
There is a one-year warranty from installation or 18 months from shipment. Routine maintenance is minimal due to rugged aluminum windings, electrostatic shielding, and a robust frame. Eaton parts support and service networks help minimize downtime, contributing to lower lifecycle costs in mission-critical facilities.