Eaton NT20P11F2516CULS40 Transformer - UL Listed
Part Number: NT20P11F2516CULS40
Quick Summary
NT20P11F2516CULS40 Transformer is a K-Factor nonlinear ventilated transformer for critical power distribution in industrial facilities. Engineers often grapple with energy waste, heat buildup, and compliance hurdles when selecting reliable, industrial-grade transformers. UL Listed, NEMA TP-1 compliant, and DOE 2016 Efficient labeling safeguard safety, performance, and energy use. Copper windings, a compact WS11 weathershield, and a 25 kVA rating deliver robust reliability with installation flexibility. This design supports 240/480 V primary and 120/240 V secondary loads while meeting space, noise, and serviceability targets. By aligning with DOE efficiency goals and industry standards, it helps reduce lifecycle costs and simplify procurement. Its copper windings and electrostatic shielding further enhance performance in demanding environments.
Product Information
Extended Description
NT20P11F2516CULS40 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, 16, Copper windings, LS40
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11F2516CULS40
UPC
786680207006
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.87 in
Product Weight
451 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
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
Modification 1
Low sound 42 dB
Special features
Electrostatically shielded
Weathershield
WS11
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT20P11F2516CULS40
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: K-Factor nonlinear design reduces harmonic distortion and improves voltage stability → Business Impact: Enhanced power quality for sensitive equipment and reduced transformer stress → Application: Ideal for industrial controls and manufacturing lines where clean power is critical. Feature: 25 kVA single-phase rating → Business Impact: Supports loads up to substantial control panels without oversizing inventory → Application: Control rooms and machine interfaces requiring reliable, scalable power. Feature: Copper windings → Business Impact: Higher conductivity and efficiency with lower heat losses → Application: Reputable in high-duty environments like production floors. Feature: WS11 weathershield and electrostatic shielding → Business Impact: Improved environmental protection and reduced EMI/RFI impact → Application: Outdoor or shielded enclosures in harsh facilities. Feature: DOE 2016 Efficient, NEMA TP-1, UL Listed → Business Impact: Compliance-ready and energy-conscious sourcing → Application: Projects demanding regulatory adherence and energy audits. Feature: 1 at +5% / 2 at -5% / 2 at +2.5% / 4 at -2.5% taps → Business Impact: Flexible voltage regulation for varied loads → Application: Panel installations with voltage conditioning requirements. Feature: 60 Hz operation, 240/480 V primary, 120/240 V secondary → Business Impact: Seamless integration with standard industrial power systems → Application: Facility substations and control cabinets. Feature: Low sound rating 42 dB → Business Impact: Quieter operation reduces acoustic concerns in tight spaces → Application: Floor-mounted or mezzanine installations where noise can be a nuisance. Feature: 115 °C rise → Business Impact: Robust thermal performance under peak loading → Application: Continuous operation in hot environments.
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FAQs
For a proper install, ensure spacing for ventilation and access, mount within an enclosure compatible with WS11 shielding, and align with the 818 frame dimensions (22.87 in wide, 37.59 in high, 20.36 in deep). Verify NEMA TP-1 clearance, UL Listed compliance, and the 25 kVA rating. Use the voltage taps to match site voltages and secure copper windings with standard hardware.
The unit provides 25 kVA at 60 Hz with a 240/480 V primary and 120/240 V secondary. It features a 115 °C rise and copper windings for efficiency and reliability. Taps allow adjustments (+5%, -5%, +2.5%, -2.5%) to support voltage regulation under varying loads, delivering stable outputs for sensitive equipment.
Yes. It includes a low sound rating of 42 dB, electrostatic shielding, and a WS11 weather shield, which together mitigate EMI/RFI and environmental exposure. The copper windings also contribute to predictable, low-loss performance, making it suitable for noise-sensitive control rooms and outdoor installations within appropriate enclosures.
The transformer is UL Listed, NEMA TP-1 compliant, and DOE 2016 Efficient. These certifications confirm safety, reliability, and energy performance, which simplifies regulatory approvals, insurance considerations, and energy audits for industrial facilities and mission-critical applications.
With a 25 kVA rating and DOE efficiency, operating costs are reduced relative to older designs. The unit’s copper windings, electrostatic shielding, and WS11 enclosure reduce maintenance needs and environmental exposure. A one-year warranty (eighteen months from shipment) provides initial protection, contributing to lower lifecycle costs and faster ROI when compared with less efficient alternatives.