Eaton General purpose encapsulated transformer S20N11S03CUSRLS42 - 3 kVA
Part Number: S20N11S03CUSRLS42
Quick Summary
Eaton General purpose encapsulated transformer powers control panels by converting voltage for sensitive equipment in industrial settings. This device addresses a common pain point: fitting reliable power conversion into compact, space-constrained enclosures without sacrificing performance. The unit’s certified sound profile and indoor-outdoor versatility support installation in busy facilities while minimizing disruption. Certifications are handled by the manufacturer, and you can request formal documentation; the catalog notes include a certified sound level report (42 dB). With copper windings, a 3 kVA rating, 60 Hz operation, and primary 240/480 V with secondary 120/240 V, this transformer delivers stable power for automation tasks and machine controls while streamlining panel design and regulatory compliance.
Product Information
Extended Description
S20N11S03CUSRLS42 Eaton: Eaton General purpose encapsulated transformer, EP, copper, 176, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, None, 115 °C rise, 3 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S03CUSRLS42
UPC
786680112256
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
72 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
Certified sound level report Low sound design equivalent to 42 dB.
Coil material
Copper
Design
EP
Frame
176
Tap size
None
Type
General-purpose encapsulated transformer
Wiring connection
3A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11S03CUSRLS42
Feature: Copper windings and EP encapsulation. Business Impact: Provides high reliability and resistance to moisture, dust, and vibration, reducing insulation failures and downtime. Application: ideal for control panels in harsh factory environments where durability matters. Feature: 3 kVA rating at 60 Hz, single-phase with 240/480 V primary and 120/240 V secondary. Business Impact: supports typical automation loads in a compact footprint, enabling a single unit to serve multiple subsystems and simplifying wiring. Application: machine tools, conveyors, and panel boards in automation lines. Feature: Indoor-Outdoor design (Weathershield: Indoor-Outdoor). Business Impact: enables flexible placement in either protected or exposed enclosures, reducing enclosure costs and installation time. Application: outdoor-ready control cabinets and perimeter equipment installations. Feature: Certified sound level (42 dB) and robust frame dimensions (Frame 176, 14.25 in height, 7.69 in width, 8 in depth). Business Impact: lower operating noise improves worker comfort and permits denser panel layouts. Application: compact automation cabinets where space is at a premium. Feature: Copper windings and 115 °C rise insulation characteristics. Business Impact: enhances thermal performance under load, increasing reliability and lifetime. Application: continuous duty applications in production lines and process controls. Feature: Warranty and support (Eaton policy 25-000; 1 year from installation or 18 months from shipment). Business Impact: reduces risk for capital projects and supports total cost of ownership (TCO) considerations. Application: procurement for new panels and retrofits in industrial facilities.
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FAQs
This transformer is designed for indoor-outdoor use with a compact footprint suitable for tight panel spaces. It features copper windings and a 3A wiring connection, and its frame size (176) supports mounting in standard electrical enclosures. Plan panel layouts to accommodate a 14.25 in high, 7.69 in wide, 8 in deep unit weighing about 72 lb.
The unit is a single-phase transformer rated at 3 kVA, operating at 60 Hz. Primary voltage is 240 V or 480 V, and secondary voltage is 120/240 V, making it suitable for common automation subsystems and control circuits within industrial facilities.
Yes, the product supports indoor-outdoor installation per its Weathershield classification. Use a properly rated enclosure to protect it from extreme conditions, while leveraging its EP encapsulation and copper windings for reliability in challenging environments.
Official certifications are provided by the manufacturer. The catalog notes include a certified sound level report (42 dB). For formal CE/SIL/IP documentation, contact Eaton directly to obtain the required compliance paperwork.
With a robust 3 kVA rating, copper windings, and a standard warranty (1 year from installation or 18 months from shipment), uptime is maximized and maintenance costs are minimized. Its durable construction supports longer service life in automation panels, reducing replacement cycles and total cost of ownership.