Eaton NT20P11S1516CU Transformer - UL Listed & DOE Efficient
Part Number: NT20P11S1516CU
Quick Summary
Eaton NT20P11S1516CU transformer is designed to deliver reliable single‑phase power for industrial control panels and automation systems. Operators often struggle with voltage drift, heat, and space constraints that disrupt uptime and drive maintenance costs. This unit addresses those pains with a 15 kVA rating, copper windings, and a 150°C rise for rugged performance in challenging environments, plus a flexible tap system for voltage regulation. UL Listed, NEMA TP-1 compliant, and aligned with DOE 2016 Efficient standards, it helps meet safety, regulatory, and energy‑efficiency targets. The robust frame and high‑quality construction minimize field servicing, while copper windings support lower losses and longer life—boosting reliability and reducing total cost of ownership over time.
Product Information
Extended Description
NT20P11S1516CU 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, 15 kVA, 16, Copper windings
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11S1516CU
UPC
786680207532
Product Length/Depth
18.39 in
Product Height
31.3 in
Product Width
22.89 in
Product Weight
283 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
816
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
15 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
WS11
Feature: K‑Factor nonlinear ventilated design minimizes harmonic heating under non‑linear load conditions. Business Impact: This improves thermal performance and reduces losses, helping equipment operate cooler and more efficiently in demanding automation environments. Application: Ideal for factory floor controls, servo drives, and PLC panels where harmonic currents are common. Feature: Multi‑tap primary with +5% and -5% settings and +2.5% / -2.5% options. Business Impact: Maintains stable secondary voltages across supply variations, reducing nuisance tripping and component stress. Application: Suitable for installations with fluctuating mains or long feeder runs in industrial facilities. Feature: Copper windings and 150°C rise rating. Business Impact: Copper windings deliver low resistance and ample thermal headroom, increasing reliability and longevity in hot plant rooms. Application: Environments with limited cooling or higher ambient temperatures. Feature: 15 kVA single‑phase power with 240/480 V primary and 120/240 V secondary. Business Impact: Flexible power conversion supports common control circuits and distribution networks, reducing stocking needs. Application: Control panels, machine tools, and automation equipment requiring dual voltage rails. Feature: UL Listed, NEMA TP‑1 Compliant, DOE 2016 Efficient. Business Impact: Streamlines procurement through verified safety and energy compliance, lowering total cost of ownership. Application: OEM builds and retrofit projects in manufacturing, packaging, and process industries. Feature: Electrostatic shielding and WS11 weather shield option. Business Impact: Improves EMI protection and outdoor or semi‑exposed installation resilience. Application: Outdoor enclosures or outdoor‑adjacent equipment rooms. Feature: Dimensions and weight—18.39 in L x 31.3 in H x 22.89 in W; 283 lb; Frame 816. Business Impact: Clear footprint and mounting planning support for electrical room layouts and concrete bases. Application: Plant floor installations and electrical rooms requiring a robust, fixed transformer.
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FAQs
NT20P11S1516CU uses taps configured as 1 at +5%, 2 at -5%, and 4 at -2.5% plus 2 at +2.5% FCAN/FCBN. This arrangement allows you to fine-tune the primary voltage to stabilize the secondary output in the presence of supply variations, minimizing voltage drift at the downstream control circuits.
Yes. The transformer is UL Listed and DOE 2016 Efficient, with NEMA TP‑1 compliance noted for aligned performance and safety. This combination supports regulatory acceptance and energy‑efficiency goals in industrial installations.
The unit measures 18.39 in L x 31.3 in H x 22.89 in W and weighs 283 lb, with a frame 816. Plan for secure hard-mounting and adequate space for ventilation and cabling. Weathershield WS11 and electrostatic shielding enhance suitability for sheltered outdoor or exposed indoor installations.
K‑Factor nonlinear design reduces harmonic heating on non‑linear loads, improving reliability and efficiency in drives, power supplies, and control electronics. This helps maintain stable temperatures and reduces cooling requirements in high‑demand automation environments.
Warranty follows Eaton policy 25‑000, offering one year from installation or eighteen months from shipment, whichever occurs first. For field service or advanced support, consult Eaton’s service programs to optimize maintenance intervals and lifecycle cost.