Eaton S20K11S03CUSS4X Transformer - NEMA 4X Enclosure
Part Number: S20K11S03CUSS4X
Quick Summary
Eaton S20K11S03CUSS4X transformer delivers isolated power for control panels. In many facilities, voltage fluctuations and outdoor exposures drive maintenance costs and downtime; this encapsulated unit mitigates ingress, simplifies installation, and enhances reliability. Key features include a rugged NEMA 4X indoor-outdoor enclosure, copper windings for efficiency, and a 3 kVA rating. Certifications are provided by the manufacturer upon request, with a one-year warranty from installation (or eighteen months from shipment). This solution supports scalable power for industrial automation, control cabinets, and harsh-environment applications, delivering long-term value in equipment-intensive environments.
Product Information
Extended Description
S20K11S03CUSS4X Eaton: Eaton, general purpose encapsulated transformer, ep single-phase 240 x 480v 1 at -10% fcbn x 2 at -5% fcbn 120/240v 150°c 3 kva copper windings 176 9a indoor-outdoor 60 hz nema 4x
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S03CUSS4X
UPC
786680116063
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
0.001 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 304 stainless steel enclosure.
Coil material
Copper
Design
EP
Enclosure
NEMA 4X
Tap size
1 at -10% FCBN x 2 at -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
3 kVA
Weathershield
Indoor-Outdoor
Feature: General-purpose encapsulated transformer with copper windings. Business Impact: Improves efficiency and reliability in compact footprints, reducing energy waste and heat buildup in control panels. Application: Suitable for machine subpanels and distribution blocks where space is limited. Feature: 3 kVA VA rating with 60 Hz single-phase operation. Business Impact: Supports multiple control circuits from a single source, simplifying panel design and reducing the need for multiple modules. Application: Industrial automation and process control systems requiring compact power conversion.Feature: Primary 240/480 V to secondary 120/240 V. Business Impact: Enables seamless voltage conversion in mixed-voltage installations, lowering wiring complexity and inventory. Application: Panel boards and equipment rooms serving both 240 V and 120/240 V loads.Feature: Tap size 1 at -10% FCBN x 2 at -5% FCBN. Business Impact: Improves voltage regulation under supply variation, minimizing flicker and equipment stress. Application: Unstable utility feeds or long feeder runs common in manufacturing floors.Feature: Enclosure is NEMA 4X, Grade 304 stainless steel, Indoor-Outdoor. Business Impact: Delivers corrosion resistance and weatherproofing, reducing maintenance cycles and protecting critical windings. Application: Indoor-to-outdoor installations and washdown environments that demand durability.Feature: Weathershield Indoor-Outdoor with copper windings. Business Impact: Combines protective enclosure with efficient windings to extend service life and lower operating costs. Application: Harsh environments including washdowns and outdoor enclosures.
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FAQs
The S20K11S03CUSS4X is a general-purpose encapsulated transformer designed for easy integration into Eaton and third-party control panels. With a 3 kVA rating and copper windings, it provides reliable voltage transformation from 240/480 V down to 120/240 V, minimizing wiring complexity and accommodating common panel designs.
Key specs include 3 kVA VA rating, 60 Hz, single-phase operation, primary voltage 240/480 V, secondary voltage 120/240 V, copper windings, and a 150 °C rise. The unit features a NEMA 4X enclosure and indoor-outdoor suitability, making it versatile for rugged environments.
Yes. The transformer uses a NEMA 4X enclosure in Grade 304 stainless steel, engineered for indoor-outdoor use and corrosion resistance. This protection makes it appropriate for exposed sites or washdown environments while safeguarding windings and connections.
Certifications are listed as 'Contact Manufacturer' in the catalog data. While formal third-party marks may vary by region, the unit’s NEMA 4X enclosure and construction provide robust protection suitable for industrial use, with manufacturer-backed documentation available on request.
The warranty is one year from installation or eighteen months from shipment, whichever occurs first. This protection, combined with copper windings and a rugged enclosure, helps reduce maintenance costs, extend service intervals, and improve return on investment for automation projects.