Eaton S20N11S05XCU Encapsulated Transformer - UL Listed
Part Number: S20N11S05XCU
Quick Summary
Eaton S20N11S05XCU encapsulated transformer powers control panels with reliable isolation. Engineers struggle with voltage fluctuations, panel downtime, and installation challenges in demanding environments. UL Listed and CSA Certified, with a rugged NEMA 3R enclosure for indoor-outdoor use, the unit delivers 50-60 Hz single-phase performance from 240/480 V primary to 120/240 V secondary at 5 kVA. This combination reduces procurement friction, shortens commissioning, and improves uptime, especially where copper windings and a compact footprint enable straightforward panel integration. The result is predictable power delivery, lower maintenance needs, and a cleaner integration path for automation projects.
Product Information
Extended Description
S20N11S05XCU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 178, 50-60 Hz, single-phase, 240 V, 480 V, 120/240 V, None, 115 °C rise, 5 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S05XCU
UPC
786680103872
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
139 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
UL Listed CSA Certified
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
178
Tap size
None
Type
General-purpose encapsulated transformer
Wiring connection
3A
Frequency rating
50-60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
5 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11S05XCU
Selling Policy 25-000 - Distribution and Control Products and Services
Powerful mid-size capability meets demanding automation loads with a 5 kVA rating, copper windings, and a 50-60 Hz single-phase design. Business impact: reliable power for control panels minimizes downtime and protects sensitive drives and relays, improving overall equipment effectiveness. Application: ideal for machine tools, pumps, and distributed control panels where clean, isolated power is essential. Enclosure and durability are enhanced by a NEMA 3R rating, enabling indoor-outdoor installation and reducing the need for additional enclosure considerations. Business impact: faster installation and reduced weather-related risk, which lowers field service costs. Application: outdoor motor starters and remote-control cabinets benefit from the robust enclosure. Copper windings boost efficiency and thermal performance, contributing to energy savings over the life of the asset. Application: continuous operation in harsh environments. The wiring connection is 3A, and copper windings support easy termination and consistent currents. Business impact: simplified wiring and maintenance. Application: retrofit projects where existing panel density must be preserved. Weight at 139 lb and a compact footprint (9.89 in length, 16 in height, 10.38 in width) facilitate installation in standard electrical spaces. Business impact: reduced mounting complexity and faster commissioning. Warranty coverage (1 year from installation or 18 months from shipment) provides adopter confidence and predictable total cost of ownership. Certifications UL Listed and CSA Certified validate compliance for industrial environments, supporting procurement and regulatory adherence. Application: any project requiring formal electrical compliance with standard safety marks.
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FAQs
This model uses a rugged NEMA 3R enclosure suitable for indoor-outdoor use, so installations can be either inside control rooms or in protected outdoor locations. Weighing 139 lb and measuring 9.89 in by 10.38 in by 16 in, it requires proper mounting hardware and clearance for servicing. Ensure space for ventilation and accessibility to the 3A wiring connections.
With a 5 kVA rating, the transformer can supply moderate auxiliary loads without overheating, supporting 240/480 V primary to 120/240 V secondary. This configuration is ideal for feeding PLCs, relays, and auxiliary systems within a single cabinet or distributed panels, reducing the need for multiple smaller transformers and simplifying wire routing.
Yes. The enclosure is rated NEMA 3R and the unit is designed for indoor-outdoor use, providing weather resistance for mounted panels in damp or outdoor environments. UL Listed and CSA Certified certifications further reinforce suitability for industrial settings and compliance with electrical safety standards.
The transformer carries UL Listed and CSA Certified marks, signaling adherence to recognized safety and performance standards. These certifications simplify customer audits, align with procurement policies, and ensure the product meets typical industrial, building, and electrical codes for commercial and manufacturing facilities.
Warranty terms state one year from the date of installation or eighteen months from shipment, whichever occurs first. This provides assurance against manufacturing defects and supports ROI by reducing long-term maintenance risk and unplanned replacement costs in automation projects.