Eaton S20L11S25CUS64X Encapsulated Transformer - NEMA 4X
Part Number: S20L11S25CUS64X
Quick Summary
Eaton S20L11S25CUS64X encapsulated transformer provides reliable power conversion for machine controls and panels. Downtime and enclosure compatibility are common pain points when upgrading control gear, often increasing project risk and maintenance costs. This unit features a rugged NEMA 4X (316 stainless steel) enclosure for indoor-outdoor service and copper windings delivering 60 Hz single-phase power with 240/480 V input and 120/240 V output. With proven protection, compact mounting, and Eaton’s warranty, it helps streamline installation, improve uptime, and reduce total cost of ownership. Designed for industrial environments, it supports scalable power distribution across automation panels and motor control centers.
Product Information
Extended Description
S20L11S25CUS64X Eaton: General-purpose encapsulated transformer EP Single-phase 240 x 480V 2 at -5% FCBN x 4 at -2.5% FCBN 120/240V 150°C 25 kVA Copper windings 182 23A Indoor-Outdoor 60 Hz NEMA 4X
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S25CUS64X
UPC
786680116599
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
881 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
Contact Manufacturer
Catalog Notes
NEMA 4X Grade 316 stainless steel enclosure.
Coil material
Copper
Design
EP
Enclosure
NEMA 4X
Tap size
2 at -5% FCBN x 4 at -2.5% FCBN
Type
General-purpose encapsulated transformer
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
150 °C rise
Volt ampere rating
25 kVA
Weathershield
Indoor-Outdoor
Feature: General-purpose encapsulated design provides durable protection in harsh environments. Business Impact: Reduces maintenance cycles and simplifies field installations, minimizing downtime in automated systems. Application: Ideal for machine controls and control panels that require reliable power in challenging indoor-outdoor settings. Feature: Copper windings deliver higher conductivity and efficiency. Business Impact: Lower resistive losses and heat, contributing to improved overall system efficiency and reduced cooling requirements. Application: Suitable for high-duty cycle automation equipment operating at 60 Hz with 240/480 V primary and 120/240 V secondary. Feature: NEMA 4X enclosure with 316 stainless steel construction. Business Impact: Superior corrosion resistance and environmental protection, enabling outdoor or moisture-prone installations without enclosure compromise. Application: Critical in process lines, washdown areas, and exterior electrical rooms. Feature: Tap changer capability (2 at -5% FCBN x 4 at -2.5% FCBN). Business Impact: Allows minor voltage adjustments to accommodate supply variations, improving voltage regulation and protecting connected loads. Application: Panels fed from variable supply sites, manufacturing lines, and remote automation stations. Feature: Weathershield and indoor-outdoor rating. Business Impact: Extends equipment life in harsh environments, reducing replacement costs and maintenance overhead. Application: Suitable for facilities requiring robust weatherproof power conversion components, including outdoor substations and weather-exposed control rooms. Feature: Weight and size considerations with 25 kVA rating. Business Impact: Clear installation planning for lifting, rigging, and space management, reducing installation time and risk. Application: Industrial plant floors, control rooms, and equipment rooms needing a compact, high-capacity transformer.
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FAQs
For mounting, plan a secure rack or pad installation compatible with the unit's 881 lb weight and 14.12 in depth by 23.31 in height and 16.35 in width. The transformer comes in a NEMA 4X enclosure (316 stainless steel), designed for indoor-outdoor use, which simplifies mounting near process lines or control panels while providing corrosion resistance in challenging environments.
This transformer is a single-phase 25 kVA device with primary voltages of 240 V or 480 V and secondary voltages of 120/240 V. It operates at 60 Hz and uses copper windings. It is well-suited for automation panels, machine controls, and equipment requiring reliable control power with moderate to high inrush loads within industrial settings.
Yes. The unit features a NEMA 4X enclosure with 316 stainless steel construction and an indoor-outdoor Weathershield capability, providing excellent protection against moisture, dust, and corrosion. This makes it suitable for outdoor installations or locations with washdowns and harsh environmental exposure, reducing enclosure-related maintenance and gear failures.
The transformer is specified with a NEMA 4X enclosure and 316 stainless steel construction, which aligns with industry expectations for electrical equipment rated for indoor-outdoor use. While catalog notes list enclosure protection and materials, the unit should be verified for site-specific regulatory requirements (local electrical codes, plant safety standards) before installation, and the enclosure rating provides a baseline compliance reference.
The S20L11S25CUS64X delivers durable protection (NEMA 4X), corrosion resistance, and a robust 25 kVA capacity, which translates to longer service intervals and fewer unplanned outages. Copper windings improve efficiency, reducing heat and cooling loads. Overall, customers typically experience lower downtime, simpler maintenance, and a favorable total cost of ownership in automation and process environments.