Eaton T20P11S75EEZZ Open Core Transformer - 75 kVA
Part Number: T20P11S75EEZZ
Quick Summary
Eaton open core-coil ventilated transformer provides reliable power isolation and voltage conversion for control panels and machine assemblies. In demanding industrial settings, voltage fluctuations and overheating can drive downtime and shorten equipment life, making robust power conditioning essential. Certifications to verify in the datasheet typically include SIL, CE, and IP ratings, with Eaton providing specification sheets to confirm exact approvals for your region. For engineers and procurement teams, the 75 kVA rating paired with 240/480 V primary and 120/240 V secondary supports scalable power distribution, while the taps enable precise voltage regulation under variable loads. This combination delivers improved uptime, reduced maintenance, and a clear path to compliant, safe panel integration.
Product Information
Extended Description
T20P11S75EEZZ 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, 75 kVA, EE, ZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
T20P11S75EEZZ
UPC
786680136849
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
75 kVA
Feature: Open core-coil ventilated design delivers efficient cooling and robust thermal performance. Business Impact: Reduces overheating risk, extends transformer life, and lowers maintenance costs in continuous-operation environments. Application: Ideal for control panels and machine builds where reliable power conditioning is critical. Feature: 75 kVA rating with 240/480 V primary and 120/240 V secondary. Business Impact: Supports flexible power budgeting and reduces the need for multiple step-down transformers. Application: Mid-range industrial distribution and PLC power rails in manufacturing lines. Feature: Multiple voltage taps (+5% / -5% x 2 / +2.5% / -2.5% x 4). Business Impact: Enables precise voltage regulation under load swings, improving stability for sensitive electronics. Application: Plants with variable utility feeds or long cable runs. Feature: Single-phase DS-3 configuration. Business Impact: Simplifies installation, wiring, and commissioning in tight electrical spaces. Application: Control cabinets and compact machine enclosures. Feature: Enclosure variants EE, ZZ and compact footprint compatibility. Business Impact: Streamlined panel integration and standardized mounting in existing Eaton ecosystems. Application: Retrofit projects and new builds requiring plug-and-play compatibility with Eaton distribution components. Feature: 75 kVA bulk power capacity supports reduced footprint and lifecycle cost. Business Impact: Less capital outlay on parallel transformers and lower total installed cost. Application: Medium-load distribution in manufacturing, processing lines, and distribution centers.
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FAQs
The T20P11S75EEZZ is designed for panel-mount and compact electrical enclosures typical in control rooms and machine cabinets. For mounting, ensure a ventilated location with adequate clearance for heat dissipation, and align with standard DIN rail or bolt-down mounting as supported by Eaton’s enclosure options. Use proper torque on terminal screws and secure the transformer to avoid vibrations that could loosen connections over time.
Key specs include 75 kVA VA rating, primary voltage 240/480 V, secondary voltage 120/240 V, and the voltage tap options: +5% / -5% (two taps) and +2.5% / -2.5% (four taps). This configuration supports voltage regulation under load and fluctuating input conditions, enabling stable secondary voltage for sensitive control electronics and PLC rails.
Yes. With its 1-phase DS-3 configuration and open core-coil ventilated design, it offers reliable voltage conversion and superior cooling in panel-mounted applications. The 75 kVA capacity supports essential control circuits and drives in mid-sized equipment while maintaining a compact footprint suitable for dense panel layouts.
Certification specifics should be confirmed in Eaton’s datasheet for your region. Look for SIL, CE, and IP-related approvals if applicable, and verify enclosure ratings and Installation Standards compliance. If in doubt, request the official certification appendix from Eaton to ensure regulatory alignment with your end-use environment.
ROI comes from reduced downtime, lower energy waste due to stable voltage, and fewer transformers required for mid-power needs. The 75 kVA rating covers broader load requirements, while tap settings minimize voltage-related faults and equipment wear. When combined with Eaton’s compatible components, the total lifecycle cost tends to be lower through fewer maintenance events and easier procurement.