Eaton T20P11S3716CUESZZ Open Core Transformer - 37.5 kVA
Part Number: T20P11S3716CUESZZ
Quick Summary
The Eaton Open core-coil ventilated transformer is designed for reliable single-phase power distribution in industrial and equipment installations. It helps engineers address voltage stability challenges in control panels and distribution boards by providing a robust voltage transformation with adjustable taps. This model aligns with industry standards for open-core dry-type transformers, and its copper windings support high efficiency, low loss operation. By coupling flexible tap settings with a compact, ventilated design, it delivers predictable performance, reduces heat-related downtime, and supports long-term ROI for OEMs and maintenance teams alike.
Product Information
Extended Description
T20P11S3716CUESZZ 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, 37.5 kVA, 16, Copper windings, ESZZ
Product Name
Eaton Open core-coil ventilated transformer
Catalog Number
T20P11S3716CUESZZ
UPC
786680210259
Product Length/Depth
20.36 in
Product Height
37.59 in
Product Width
22.87 in
Product Weight
433 lb
Certifications
Contact Manufacturer
Primary voltage
240 x 480 V
Secondary Voltage
120/240 V
Volt ampere rating
37.5 kVA
Eaton's low-voltage dry-type distribution transformers
Eaton's low-voltage dry-type distribution transformers
Eaton Specification Sheet - T20P11S3716CUESZZ
Feature → Business Impact → Application: Open core-coil ventilated design enhances cooling and reduces thermal buildup, improving continuous operation in crowded electrical rooms and machine enclosures. This translates to higher reliability, lower maintenance cycles, and extended service life in factory floors and SCADA-equipped systems. Feature → Voltage taps for compensation → Application: +5% at 1 tap, -5% on 2 taps, +2.5%/ -2.5% on 4 taps enable voltage balancing under fluctuating supply, preventing undervoltage/overvoltage events in control panels and feeders. Feature → 37.5 kVA rating → Application: Handles typical machine feeders and panel loads with headroom for startup surges, reducing the need for oversized transformers in line with energy efficiency goals. Feature → Primary 240 x 480 V / Secondary 120/240 V → Application: Supported by copper windings and 150°C rise, this configuration suits standard industrial power networks while maintaining tight voltage regulation for sensitive controls. Feature → 1-phase, dry-type, copper windings → Application: Ease of installation in restricted spaces, compatibility with standard wiring practices, and robust humidity/temperature resilience for plant environments. Feature → Dimensions and weight (20.36 in × 22.87 in × 37.59 in; 433 lb) → Application: Manageable footprint and lifting requirements, enabling straightforward mounting in equipment racks or wall-mounted assemblies without sacrificing power capability.
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FAQs
This is a single-phase, open-core, ventilated transformer designed for panel boards, switchgear, and local distribution. Plan for the 433 lb weight, secure mounting, proper clearances for cooling, and correct wiring of the 240 x 480 V primary to the supply and 120/240 V secondary to the load. Use taps to compensate voltage drift as needed.
Key specs include a 37.5 kVA rating, primary voltage 240 x 480 V, secondary voltage 120/240 V, copper windings, and a 150°C rise. It is a 1-phase dry-type unit with taps for ±5% and ±2.5% adjustments, offering dependable voltage transformation and cooling characteristics suitable for compact industrial applications.
Yes. With a 37.5 kVA rating and 1-phase dry-type design, it is well-suited for machine feeders, control panels, and localized power distribution. The open-core ventilated construction supports effective heat dissipation in confined spaces, while copper windings provide low losses and good service life in industrial environments.
Certifications for this model are listed as to be confirmed with the manufacturer. In practice, transformers of this class commonly align with CE, UL/CSA, and relevant IP or SIL considerations depending on the installation. Always verify with Eaton and consult the datasheet (Eaton Specification Sheet) for the exact certification scope.
Maintenance impact is typically low for dry-type open-core designs with copper windings, but periodic checks of tap settings and cooling clearance are recommended. The 37.5 kVA rating provides load headroom for startups, reducing downtime and enabling predictable energy use, which supports faster ROI through improved reliability and reduced panel rework.