Eaton T20P11E37CUEEZZ Open core-coil transformer - 37.5 kVA
Part Number: T20P11E37CUEEZZ
Quick Summary
Open core-coil transformer steps down 240/480 V for control panel power distribution. Engineers face voltage compatibility and thermal management in compact panels, often compromising reliability. Certification expectations for transformers include CE marking and IEC/UL compliance, with SIL readiness and enclosure IP ratings as applicable. With a 37.5 kVA rating, copper windings, and adjustable taps, this unit supports scalable, efficient power delivery for industrial automation and machine control.
Product Information
Extended Description
T20P11E37CUEEZZ Eaton: Eaton Open core-coil ventilated transformer, DS-3 (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 [E], 37.5 kVA, Copper windings, EE, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
T20P11E37CUEEZZ
UPC
786680136665
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Certifications
Contact Manufacturer
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Volt ampere rating
37.5 kVA
Feature: Open core-coil design with ventilated construction. Business Impact: Improves cooling efficiency and reduces thermal constraints in tight panel spaces. Application: Ideal for compact control panels in industrial automation where heat rise limits uptime. Feature: Primary voltage 240 x 480 V with taps at +5%/−5% and ±2.5% variants. Business Impact: Flexible voltage matching minimizes inventory and simplifies on-site commissioning. Application: Suitable for machines and PLC power sources requiring configurable input voltages. Feature: Secondary voltage 120/240 V and 37.5 kVA rating. Business Impact: Supports multiple loads with headroom for peak demand, improving reliability and performance. Application: Powering relays, drives, and control circuits in automation lines. Feature: Copper windings and EE/ZZ frame. Business Impact: Enhances efficiency, thermal performance, and durability for long service life in harsh environments. Application: Robust integration into Eaton-compatible enclosures and standard machine layouts. Feature: Ventilated/open-core construction with field-adjustable taps. Business Impact: Easier maintenance, faster cooling, and smoother integration with existing power architectures. Application: Panel upgrades and new-installations in manufacturing, packaging, and process automation.
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FAQs
Installation begins with confirming a 240/480 V primary and 120/240 V secondary setup. Mount the transformer on a stable, ventilated panel surface, connect copper windings per the schematic, and select the appropriate taps (+5%/−5% and ±2.5%) to match your load. Ensure the enclosure provides adequate cooling and observe the 150°C rise rating for thermal management in peak conditions.
The unit features a 240 x 480 V primary with taps at +5%/−5% and ±2.5% variants, plus a 120/240 V secondary. This combination enables flexible on-site voltage matching to accommodate subtle supply variations and to optimize power quality for sensitive automation equipment.
Yes. With a 37.5 kVA rating and copper windings, the transformer provides robust power to PLCs, drives, and control circuits in automation lines. The open core-coil, ventilated design supports reliable cooling in panel-mounted applications, while the adjustable taps help tailor input voltage to your specific machine control needs.
Certification specifics for this model are listed as 'Contact Manufacturer' in the data. In practice, transformers in this category commonly align with CE marking and IEC/UL compliance. For exact certifications and test reports, request documentation from Eaton or your distributor to ensure regulatory alignment for your region and application.
Copper windings offer high conductivity, lower resistance losses, and better thermal performance, translating to longer service life and reduced energy waste. The EE/ZZ housing is designed for compatibility with standard control-panel layouts, simplifying installation and maintenance. Over time this can reduce downtime, spare-part needs, and total cost of ownership in automated facilities.