Eaton NT20P11S3716CU - K-Factor Transformer, UL Listed
Part Number: NT20P11S3716CU
Quick Summary
The Eaton NT20P11S3716CU is a K-Factor nonlinear ventilated transformer for industrial power conditioning in control panels. Engineers often struggle with balancing efficiency, thermal management, and reliable secondary voltages in compact installations. It carries UL Listed, NEMA TP-1 compliant, and DOE 2016 Efficient design to meet regulatory standards. It supports single-phase 37.5 kVA service, with copper windings and a 150°C rise to deliver durable performance for critical loads while enabling efficient energy use in modern automation environments.
Product Information
Extended Description
NT20P11S3716CU Eaton: Eaton K-Factor nonlinear ventilated transformer, KT-13 (1-phase), PV 240 x 480V, Taps: 1 at +5%/2 at -5% x 2 at +2.5%/4 at -2.5%, SV 120/240V, 150°C rise, 37.5 kVA, 16, Copper windings
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11S3716CU
UPC
786680207235
Product Length/Depth
23.84 in
Product Height
42.03 in
Product Width
24.22 in
Product Weight
764 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.
Compliances
NEMA TP-1 Compliant
Certifications
UL Listed
Catalog Notes
DOE 2016 Efficient
Coil material
Copper
Frame
819
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
Volt ampere rating
37.5 kVA
Phase
Single-phase
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Special features
Electrostatically shielded
Weathershield
WS16
Feature — K-Factor nonlinear ventilated design. Business Impact — Improves overload tolerance and minimizes thermal hotspots, delivering more stable voltage under varying loads. Application — Ideal for panel boards and control enclosures in automated facilities. Feature — Primary and secondary voltage options with flexible taps. Business Impact — Enables precise voltage matching and reduced wiring complexity, cutting installation time and sparing parts. Application — Supports 240/480 V input to 120/240 V outputs in machine tools and PLC power rails. Feature — 37.5 kVA, single-phase, 60 Hz rating. Business Impact — Handles mid-range aviation of loads with consistent regulation and reduced risk of undersizing or oversizing. Application — Suitable for automation racks, robotics, and process equipment power supplies. Feature — Copper windings and 150°C rise. Business Impact — Delivers robust thermal performance and extended life in hot or crowded panel environments. Application — Harsh manufacturing floors, forced-air cooled cabinets, and energy-sensitive facilities. Feature — Compliance and efficiency suite: UL Listed, NEMA TP-1, DOE 2016 Efficient. Business Impact — Eases procurement, regulatory audits, and supports energy savings targets. Application — Preferred for OEM builds and multi-site deployments needing verifiable standards. Feature — Electrostatic shielding and Weathershield WS16. Business Impact — Reduces electromagnetic interference and protects transformer internals from outdoor or exposed installations. Application — Outdoor or high-dust environments in packaging and material handling lines.
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FAQs
NT20P11S3716CU features taps with 1 at +5%, 2 at -5% and 2 at +2.5%/4 at -2.5%, enabling precise voltage matching to accommodate supply variations. When planning installations, use the +5% tap for overvoltage conditions and the negative taps to compensate for low-line scenarios, helping maintain stable secondary voltages to critical equipment.
Yes. As a single-phase 37.5 kVA transformer with 240/480 V primary and 120/240 V secondary, it is well-suited for control panels and automation racks. Its copper windings and 150 °C rise support reliable performance in confined spaces, and UL Listed plus NEMA TP-1 compliance simplify panel approvals and integration with PLC systems.
The NT20P11S3716CU carries UL Listed certification, NEMA TP-1 compliance, and DOE 2016 Efficient designation. These certifications ensure regulatory alignment, energy efficiency improvements, and reliability in industrial environments, which is advantageous during procurement audits and multi-site deployments.
This transformer has a footprint suited for enclosed installations: 23.84 in long, 42.03 in high, and 24.22 in wide, with a weight around 764 lb. Plan for adequate mounting clearance, thermal ventilation, and access to the 240/480 V and 120/240 V connections for straightforward wiring and serviceability.
Warranty follows Eaton’s policy 25-000: one year from installation or 18 months from shipment, whichever comes first. Combined with copper windings, electrostatic shielding, and durable Weathershield WS16 protection, the unit offers robust longevity in demanding settings and predictable maintenance planning for ROI.