Eaton S20L11S15CUSS4X General-Purpose Transformer - NEMA 4X

Part Number: S20L11S15CUSS4X
Manufacturer
Eaton
Part number
S20L11S15CUSS4X

Quick Summary

The Eaton general purpose encapsulated transformer provides reliable voltage conversion for industrial control panels and equipment. Operators often struggle with bulky installations, inconsistent secondary voltages, and environments that threaten uptime. This unit is UL Listed and built in a NEMA 4X stainless steel enclosure with indoor-outdoor Weathershield, designed for harsh industrial sites and NAFTA-compliant sourcing. With a 15 kVA rating, copper windings, and a 60 Hz operating frequency, it delivers consistent performance under demanding loads. Tap adjustments allow fine regulation to match 240/480 V primary to 120/240 V secondary needs, reducing wasted energy and minimizing heat. The combination of rugged construction and precise voltage control translates to lower maintenance costs and longer system life, supporting reliability in automation and power-distribution applications.

Product Information

Extended Description

S20L11S15CUSS4X Eaton: Eaton General-purpose encapsulated transformer EP Single-phase 240 x 480V 2 at -5% FCBN x 4 at -2.5% FCBN 120/240V 115°C 15 kVA Copper windings FR1804X 23A Indoor-Outdoor 60 Hz NEMA 4X
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S15CUSS4X
UPC
786680116124
Product Length/Depth
11.24 in
Product Height
17.67 in
Product Width
16.88 in
Product Weight
259 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.
Compliances
NAFTA
Certifications
UL Listed
Catalog Notes
NEMA 4X Grade 304 stainless steel enclosure.
Coil material
Copper
Design
EP
Enclosure
NEMA 4X
Frame
1804X
Insulation
180 °C
Mounting
Wall
Tap size
2 at -5% FCBN x 4 at -2.5% FCBN
Type
General-purpose encapsulated transformer
Wiring connection
23A
Frequency rating
60 Hz
Kva Rating
15 kVA
kVA
15 kVA
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Sound Level
NEMA ST-20
Temperature rise
150 °C rise
Volt ampere rating
15 kVA
Special features
NEMA 4X Stainless Steel Enclosure
Weathershield
Indoor-Outdoor
Feature Copper windings and encapsulated design deliver high efficiency and durable performance, reducing copper losses under load and extending service life in demanding environments. Business Impact Lower energy waste and longer equipment life lead to lower total cost of ownership and improved uptime in critical automation lines. Application Suitable for control panels and automation cabinets where reliability and efficiency are paramount. Feature 15 kVA rating with primary voltages of 240 V / 480 V and secondary 120/240 V enables flexible power distribution for a broad range of machines and tools. Business Impact Simplified panel design and reduced inventory requirements, with easier voltage matching for machine tools and robotics. Application Ideal for machine control, instrumentation power, and distribution in industrial environments. Feature NEMA 4X stainless steel enclosure with indoor-outdoor weathershield provides rugged protection against dust, water ingress, and corrosion. Business Impact Minimizes maintenance needs and downtime in harsh environments, supporting long service life and safer operation. Application Perfect for outdoor installations, washdown areas, or damp facilities where enclosure integrity matters. Feature Tap sizes 2 at -5% FCBN x 4 at -2.5% FCBN allow precise voltage regulation to compensate for line drops and load changes. Business Impact Improves voltage stability for sensitive equipment, reducing nuisance tripping and equipment wear. Application Critical for control cabinets serving robotics, PLCs, and peripherals with tight voltage tolerances. Feature Copper windings combined with 180 °C insulation and 150 °C rise specification supports reliable operation in confined spaces and elevated ambient temperatures. Business Impact Enhances safety margins, minimizes insulation degradation, and extends service life of HVAC and motor-control loads. Application Suitable for indoor spaces with limited ventilation or hot industrial rooms. Feature UL Listed certification and NAFTA compliance streamline procurement and supplier qualification. Business Impact Facilitates audits, reduces compliance risk, and speeds sourcing in multinational projects. Application Beneficial for global rollouts and OEMs deploying standardized transformer layouts in automation systems.

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FAQs

Plan for a wall-mounted, indoor-outdoor capable unit with a NEMA 4X stainless steel enclosure. Ensure clearances around the 11.24 in depth, 16.88 in width, and 17.67 in height, plus adequate cooling and ventilation. The 259 lb weight requires appropriate support and secure mounting, and the 23A wiring supports robust connections to the primary and secondary circuits.
A 15 kVA rating accommodates typical automation loads with margin for startup currents, while the 240/480 V primary to 120/240 V secondary configuration simplifies panel design. This arrangement reduces the number of transformers needed, enables cleaner distribution, and supports stable voltage delivery to PLCs, drives, and sensors in machine tools and automation cabinets.
Yes. The S20L11S15CUSS4X uses a NEMA 4X stainless steel enclosure and an Indoor-Outdoor Weathershield, providing corrosion resistance and protection against dust, water, and harsh operating conditions. This makes it suitable for outdoor installations, washdown areas, and damp facilities without compromising reliability.
The transformer is UL Listed and NAFTA compliant, which facilitates supplier qualification and cross-border procurement. These certifications simplify regulatory audits, help ensure consistent quality, and support global projects where standardized parts are preferred for maintenance and service continuity.
Copper windings and robust insulation (180 °C) deliver reliable performance with lower resistance losses and safer operation at elevated temps. The unit’s rugged enclosure and 60 Hz operation reduce downtime and maintenance needs, while the adjustable taps support voltage regulation to minimize energy waste and extend the life of connected equipment.