Eaton T20P11S50CUNV Transformer - 1PH TENV 50 kVA
Part Number: T20P11S50CUNV
Quick Summary
The Eaton T20P11S50CUNV transformer is a totally enclosed non-ventilated power transformer designed for reliable service in industrial and commercial environments. In spaces with limited cooling or tight enclosures, ventilated designs can overheat and drive maintenance costs. Certification details are provided by the manufacturer, so confirm listings with Eaton before deployment. The unit delivers a 50 kVA, single-phase rating with a 240/480 V primary and a 120/240 V secondary, featuring copper windings and a 150°C rise for rugged operation. This combination supports compact power distribution in control panels and machine rooms while reducing cooling requirements and simplifying installation, ultimately improving uptime and total cost of ownership. It is backed by Eaton's engineering support and downloadable datasheets for quick reference.
Product Information
Extended Description
T20P11S50CUNV Eaton: Eaton Totally enclosed non-ventilated transformer 50 KVA TENV XFMR 1PH 240 X 480-120/240 150C RISE COPPER
Product Name
Eaton Totally enclosed non-ventilated transformer
Catalog Number
T20P11S50CUNV
UPC
786680142253
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
743 lb
Certifications
Contact Manufacturer
Type
Non-ventilated transformer
Feature: Totally enclosed non-ventilated (TENV) enclosure. Business Impact: Reduces the need for external cooling and dedicated ventilation, lowering installation footprint and ongoing HVAC costs. Application: Ideal for control panels and confined equipment rooms in manufacturing facilities where airflow is limited. Feature: 50 kVA single-phase rating. Business Impact: Supports robust power delivery for critical loads without oversized equipment. Application: Common in machine tools, conveyors, and distribution panels where dependable step-down power is required. Feature: Copper windings with a 150°C rise. Business Impact: Delivers reliable thermal performance under peak load conditions, improving efficiency and longevity. Application: High-duty-cycle applications in harsh environments. Feature: Primary voltage 240/480 V; Secondary voltage 120/240 V. Business Impact: Enables seamless integration with existing 240/480 V infrastructure and standard low-voltage circuits, reducing wiring complexity. Application: Facility power distribution and panel integration in mixed-voltage environments. Feature: Heavy-duty build and weight (approx. 743 lb). Business Impact: Durable for industrial use with long service life, minimizing downtime from component failure. Application: Installation in rugged plant floors and utility spaces where mechanical robustness matters. Insight: The Eaton spec sheet and catalog are available to support commissioning, wiring diagrams, and maintenance planning, helping engineers validate install time, spare parts, and total cost of ownership.
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FAQs
The T20P11S50CUNV is a single-phase transformer with a 240/480 V primary and a 120/240 V secondary. Wire the primary to the 240/480 V supply according to the Eaton wiring diagrams, observe proper phasing, and connect the 120/240 V secondary to the downstream distribution circuit. Always follow manufacturer guidelines and local code.
Key specs include a 50 kVA rating, single-phase configuration, primary 240/480 V, secondary 120/240 V, copper windings, 150°C rise, weight around 743 lb, UPC 786680142253, and a totally enclosed non-ventilated enclosure. Catalog number is T20P11S50CUNV and it’s supported by Eaton datasheets.
Yes. The TENV design and 50 kVA rating make it well-suited for control panels and machine rooms where cooling is limited and reliable, steady voltage is required. Its 120/240 V secondary is compatible with standard control circuits, and its rugged construction supports continuous operation in industrial environments.
Certification details for the T20P11S50CUNV are provided by the manufacturer. To obtain current listings (such as UL/CSA or regional certifications), contact Eaton directly using the product page or datasheets.
Downloads include the Eaton Specification Sheet for T20P11S50CUNV and the Commercial Distribution Transformers Catalog (Volume 2, Tab 2). Access them via the product’s Downloads section: the spec sheet at Eaton’s site and the transformer catalog link provided there.