Eaton NT20P11S2516CU Transformer - UL Listed
Part Number: NT20P11S2516CU
Quick Summary
The Eaton NT20P11S2516CU is a nonlinear ventilated transformer for reliable power distribution in industrial control panels. This design addresses common pain points like thermal rise, tap mismatch, and the need for quick installation without sacrificing reliability. UL Listed, NEMA TP-1 compliant, and DOE 2016 Efficient notes help satisfy regulatory and energy-efficiency targets. With copper windings, a 25 kVA rating, and single-phase operation, it delivers dependable power for panel builders and OEMs while supporting cost-effective procurement and ongoing compliance in industrial automation. This makes it a compelling choice for electrical engineers prioritizing uptime and lifecycle value. Its robust frame and copper windings enhance heat management and long-term performance.
Product Information
Extended Description
NT20P11S2516CU 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, 25 kVA, 16, Copper windings
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11S2516CU
UPC
786680207723
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.87 in
Product Weight
420 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
817
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
25 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: Nonlinear ventilated K-Factor design improves thermal performance and electromagnetic stability. Business Impact: Lower heat buildup reduces insulation stress and extends transformer life, delivering measurable uptime gains in demanding environments. Application: Ideal for control panels and machine enclosures where stable voltage under fluctuating loads is critical. Feature: Voltage-tap flexibility with 1 at +5% and 2 at -5% plus 2 at +2.5% and 4 at -2.5% for FCAN/FCBN adjustments. Business Impact: Maintains downstream voltage within tight tolerances, enabling sensitive loads to operate reliably during input variations. Application: Panel assemblies with variable supply conditions. Feature: Primary 240/480 V and secondary 120/240 V, single-phase, 60 Hz, 25 kVA rating, copper windings. Business Impact: Supports high-efficiency power conversion in compact footprint, reducing overall panel size and cooling needs. Application: Industrial automation drives, PLCs, and sensing networks requiring robust power. Feature: Compliance and efficiency stack — UL Listed, NEMA TP-1, DOE 2016 Efficient. Business Impact: Eases procurement, accelerates regulatory approvals, and lowers life-cycle energy costs. Application: New builds and retrofits in regulated facilities. Feature: Physical robustness — frame 817, 420 lb, copper windings, electrostatic shielding, WS11 weather shield. Business Impact: Durable installation with EMI reduction and environmental protection, lowering maintenance costs. Application: Outdoor or harsh-duty panel installations in manufacturing and process industries.
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FAQs
NT20P11S2516CU is designed for power distribution in electrical control panels and machine cabinets. It provides a single-phase 25 kVA rating with a 240/480 V primary and 120/240 V secondary, ensuring stable downstream voltages for PLCs, drives, and sensors. The ventilated K-Factor design supports reliable operation in hot industrial environments while meeting NEMA TP-1 load ratings.
The transformer features a 240/480 V primary and a 120/240 V secondary for flexible installations. Taps include 1 at +5% FCAN, 2 at −5% FCBN, and 2 at +2.5% FCAN with 4 at −2.5% FCBN, enabling voltage regulation to accommodate input variability and load diversity in automation systems.
Yes. The NT20P11S2516CU is UL Listed and complies with NEMA TP-1, while DOE 2016 Efficient notes indicate energy-performance alignment. This combination supports safety certification, regulatory compliance, and energy efficiency goals common to modern industrial facilities and OEM specifications.
The transformer measures 20.36 inches in length, 37.59 inches in height, and 22.87 inches in width, with a weight of 420 pounds. Its frame is 817, and it uses copper windings with electrostatic shielding and WS11 weather shield as options, facilitating robust installation in panel bays and equipment enclosures.
Key benefits include improved uptime from a high-temperature rise tolerance (150 °C rise) and copper windings that enhance efficiency and longevity. The 25 kVA rating supports scalable loads, while taps provide voltage regulation to reduce downstream equipment wear. Certifications (UL, NEMA TP-1) and DOE efficiency help lower energy costs and simplify compliance during lifecycle maintenance.