Eaton NT20P11F25CUEE K-Factor transformer - UL Listed
Part Number: NT20P11F25CUEE
Quick Summary
The Eaton NT20P11F25CUEE K-Factor nonlinear ventilated transformer provides efficient voltage conversion for modular power distribution in industrial facilities. Operators often contend with heat buildup, voltage variance, and retrofit compatibility; this unit mitigates losses with copper windings and robust cooling. UL Listed and NEMA TP-1 compliant, the design supports safe operation and regulatory compliance across control panels. This transformer integrates smoothly with Eaton’s power management ecosystem, delivering reliability, efficiency, and a clear path to continuity of service.
Product Information
Extended Description
NT20P11F25CUEE 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, 115°C rise, 25 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11F25CUEE
UPC
786680060724
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.89 in
Product Weight
427 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
NEMA TP-1 efficient
Coil material
Copper
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
Volt ampere rating
25 kVA
Phase
Single-phase
Primary voltage
240 x 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 - NT20P11F25CUEE
Feature: K-Factor nonlinear ventilated design with copper windings. Business Impact: Reduces overheating and energy losses under nonlinear loads, improving system reliability. Application: Ideal for automation panels and motor drives in manufacturing environments, where harmonic currents are common. Feature: 25 kVA, 60 Hz, single-phase, 240 x 480 V primary and 120/240 V secondary. Business Impact: Delivers stable, scalable power for control cabinets and critical loads while maintaining compact form factor. Application: Suitable for panel boards and machine control centers needing dependable step-down./Feature: Taps at 1 at +5% FCAN, 2 at -5% FCBN, and 2 at +2.5%/4 at -2.5% FCAN/FCBN. Business Impact: Enables precise voltage regulation amid line variations, reducing equipment stress. Application: Field-friendly adjustments during installation. /Feature: Copper windings and 115°C rise. Business Impact: Enhanced thermal performance and longevity, minimizing downtime in high-load scenarios. Application: Heavy-duty industrial applications with sustained loading. /Feature: Electrostatic shielding and WS11 weather shield. Business Impact: Improves safety, reliability, and outdoor or harsh environments compatibility. Application: Outdoor or demanding indoor installations with protection needs. /Feature: NEMA TP-1 compliance and UL Listed. Business Impact: Simplifies compliance and safety documentation, accelerating project approval. Application: Essential in regulated facilities and upgraded control panels.
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FAQs
This 25 kVA, single-phase transformer fits standard control panels and automation cabinets. With a 240x480 V primary and 120/240 V secondary, it supports typical panelboard configs. The footprint and frame 818 sizing, plus WS11 weather shielding, simplify mounting in both indoor enclosures and rugged environments. Be sure to allow airflow for the 115°C rise and use the available taps to regulate voltage on site.
Key specs include a 25 kVA rating at 60 Hz, single-phase design, primary voltage 240 x 480 V, secondary 120/240 V, copper windings, and an electrical temperature rise of 115°C. The device offers taps at +5% and -5% with additional +2.5% and -2.5% options, enabling precise voltage regulation in fluctuating supply conditions.
Yes. The transformer is UL Listed and NEMA TP-1 compliant, ensuring safety and efficiency in line with industry standards. This reduces compliance overhead for panel upgrades and new installations and supports reliable operation in regulated environments.
K-Factor nonlinear design accounts for distortion from harmonic-producing equipment, improving thermal performance and reducing winding overheating. This translates to longer transformer life, improved uptime, and steadier voltage regulation in drives and automated systems where non-linear loads are common.
Plan for proper ventilation and space for heat dissipation with the 115°C rise rating. Use the copper windings for durability and expect straightforward field taps for voltage adjustments. The WS11 weather shield and electrostatic shielding enhance reliability in challenging environments, while UL/NEMA TP-1 compliance streamlines commissioning and ongoing safety checks.