Eaton T20P11S5016CUZZ Open-core Transformer - 50 kVA
Part Number: T20P11S5016CUZZ
Quick Summary
Open-core transformer delivers efficient, ventilated 1-phase power conversion for industrial control panels and distribution systems. Engineers often struggle with heat buildup and voltage drift in compact switchgear; this unit's open-core, ventilated design helps maintain stable voltages and extend component life. Certifications for this model are listed as 'Contact Manufacturer'; in practice, dry-type transformers in this class typically pursue CE marking and enclosure IP ratings—verify current status with Eaton. By leveraging a copper-windings design and a 50 kVA rating, the solution supports scalable power distribution while maintaining efficiency and reliability. The combination of flexible taps and wide primary/secondary voltage pairing aligns with common plant architectures, reducing redesign risk and downtime when upgrading existing panels.
Product Information
Extended Description
T20P11S5016CUZZ 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, 50 kVA, 16, Copper windings, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
T20P11S5016CUZZ
UPC
786680211249
Product Length/Depth
1.1 in
Product Height
1.1 in
Product Width
1.1 in
Product Weight
651 lb
Certifications
Contact Manufacturer
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Volt ampere rating
50 kVA
Eaton's high-efficiency dry-type transformers
Eaton's high-efficiency dry-type transformers
Eaton Specification Sheet - T20P11S5016CUZZ
Feature: Open-core ventilated design creates effective heat dissipation and improved cooling efficiency. Business Impact: Reduces hot spots, lowers insulation stress, and extends service life, leading to lower maintenance and downtime. Application: Ideal for dense industrial control panels and distribution hubs where heat management is critical. Feature: 1-phase DS-3 transformer configuration simplifies integration in smaller systems. Business Impact: Streamlines installation and wiring costs, enabling quicker project delivery. Application: Suitable for single-phase power feeds in machine controls and panel boards. Feature: Primary voltage 240 x 480 V and secondary 120/240 V support. Business Impact: Facilitates direct interconnection with common industrial mains and downstream control circuits, reducing intermediate converters. Application: Plant-wide controls, motor starters, and panel power distribution. Feature: 50 kVA rating with multiple voltage taps (+5%, -5%, +2.5%, -2.5%). Business Impact: Precise voltage regulation with minimal drift across loading and line variations; improves device performance. Application: Critical control loops and sensors in automation lines. Feature: Copper windings and 150°C rise specification. Business Impact: Higher current handling, robust short-term surge tolerance, and reliable operation in hot environments. Application: Heavy-duty panel feeders and motor-control centers. Feature: Ventilated construction and rugged enclosure considerations. Business Impact: Enhanced reliability in harsh factory environments and easier maintenance access. Application: Industrial environments demanding continuous uptime and thermal management.
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FAQs
The T20P11S5016CUZZ is designed for panel mounting in distributed power systems and benefits from proper ventilation and secure mounting. Ensure adequate side/top clearance for heat dissipation through the ventilated core and verify the transformer footprint against the cabinet or rack space. Plan wiring access to the primary 240/480 V and secondary 120/240 V windings with accessible terminations.
This is a 1-phase, open-core transformer rated at 50 kVA. It provides a primary voltage of 240 × 480 V and a secondary of 120/240 V. Taps include +5%, -5% (one and two taps respectively) and +2.5%, -2.5% (two and four taps). These features enable voltage regulation to accommodate line variations in typical industrial power distributions.
Yes. With a 50 kVA rating and 120/240 V secondary outputs, it supports powering control cabinets, PLCs, and panel instrumentation. The open-core ventilated design improves cooling in dense panel environments, reducing heat-induced losses and enabling stable voltage delivery to sensitive automation equipment. Ensure the panel’s input supply matches the 240/480 V primary requirements.
The model lists certifications as 'Contact Manufacturer,' so confirm current status with Eaton for your region. In practice, similar dry-type transformers commonly pursue CE marking and applicable IP enclosure ratings; verify enclosure protection level and regulatory compliance with your local electrical codes before deployment.
Maintenance is typically low due to copper windings and a robust ventilated core, but periodic checks of ventilation effectiveness and connections are advised. ROI comes from improved voltage regulation via taps, reduced heat-related downtime, and reliable power delivery to automation panels, supporting longer equipment life and fewer unscheduled shutdowns in continuous-process environments.