Eaton NT20P11B37CUEE Transformer - K-Factor Nonlinear
Part Number: NT20P11B37CUEE
Quick Summary
Eaton K-Factor nonlinear ventilated transformer is designed to deliver stable voltage and thermal performance for industrial power distribution. This single-phase unit helps mitigate voltage drift and overheating in compact enclosure spaces. Certifications and compliance are typically confirmed with the manufacturer, with CE and SIL markings provided where applicable. The 37.5 kVA rating, copper windings, and multiple voltage taps support precise regulation in demanding environments. By aligning with power-management best practices, this transformer reduces energy losses and improves panel reliability, making it a prudent choice for control panels, MCCs, and machine shops seeking robust performance with predictable maintenance needs.
Product Information
Extended Description
NT20P11B37CUEE 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, 80°C rise, 37.5 kVA, Copper windings, EE
Product Name
Eaton K-Factor nonlinear ventilated transformer
Catalog Number
NT20P11B37CUEE
UPC
786680141065
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Certifications
Contact Manufacturer
Volt ampere rating
37.5 kVA
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton's Transformer Flex Center
Eaton Specification Sheet - NT20P11B37CUEE
Feature: K-Factor nonlinear ventilated design → Business Impact: Improved disturbance tolerance and thermal management under nonlinear loads, reducing overheating risk and enabling longer equipment life. Application: Data centers, batch processing lines, and robotics cells where non-linear loads are common. Feature: 37.5 kVA single-phase rating → Business Impact: Adequate headroom for moderate to high-load sections within a panel, supporting scalable control architectures. Application: Machine panels and MCCs where space is limited but stable power is essential. Feature: Primary voltage 240 x 480 V / Secondary 120/240 V → Business Impact: Flexible supply compatibility with common industrial feeders and drop-in panel replacements, decreasing wiring complexity. Application: Standalone transformers in control panels and sub-distribution boards. Feature: Tap changes: 1 at +5%; 2 at -5%; 2 at +2.5%; 4 at -2.5% → Business Impact: Precise voltage compensation for fluctuating mains, improving regulation without external stabilizers. Application: Environments with variable line voltage. Feature: Copper windings → Business Impact: Lower copper losses and higher conductivity, delivering better efficiency and thermal performance. Application: Continuous duty applications with tight efficiency targets. Feature: 80°C rise, ventilated design → Business Impact: Maintains operating temperatures within safe limits under peak loads, extending service life. Application: Enclosed electrical rooms and hot-spots in production lines. Feature: 1-phase KT-13 core configuration, EE core → Business Impact: Compact footprint with reliable magnetic path, enabling straightforward panel integration. Application: New panel builds and retrofit projects where space is at a premium. Feature: Certifications: Contact Manufacturer → Business Impact: Accurate certification status and compliance alignment for specific installations, reducing project risk. Application: Regulatory and safety reviews during procurement.
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FAQs
For installation, use a single-phase KT-13 configuration with a compact EE core. Ensure adequate ventilation to support the 80°C rise rating, provide space for taps (+5%/-5% and +/-2.5% changes), and verify enclosure suitability. Wiring should follow standard low-voltage and high-voltage separation practices to maintain safety and performance.
The K-Factor nonlinear design accommodates non-linear loading by stabilizing voltage delivery and reducing thermal stress. With 37.5 kVA capacity and adjustable taps, you can better maintain output within tolerance under fluctuating loads, which minimizes equipment wear, improves control accuracy, and lowers maintenance costs over time.
Yes, its single-phase 37.5 kVA rating and 240 x 480 V primary with 120/240 V secondary are well-suited for machine panels and MCCs that require localized, stable power. The copper-windings construction enhances efficiency, while the tap options help meet voltage variation within panel buses without additional stabilizers.
Certification status for this model is listed as Contact Manufacturer. For regulatory compliance, confirm CE labeling, SIL ratings, and any IP or enclosure standards with Eaton for your specific installation and region. Rely on Eaton datasheets and the official spec sheet for definitive certification details.
ROI is driven by improved voltage regulation, reduced overheating, and lower maintenance due to copper-windings efficiency and effective thermal management. The 37.5 kVA rating supports peak loads, while taps allow on-site voltage compensation, minimizing downtime and extending transformer life in demanding production environments.