Eaton S20N11S03S6 Encapsulated Transformer - 3kVA
Part Number: S20N11S03S6
Quick Summary
Eaton S20N11S03S6 encapsulated transformer is a general‑purpose power converter designed for control panels and industrial equipment. In practice, engineers wrestle with limited space, moisture exposure, and downtime; this unit combines a compact enclosure with rugged construction to simplify installation and improve reliability. Certifications are listed as Contact Manufacturer, so verify CE, IP ratings, or SIL compatibility with Eaton for your project. With an aluminum coil, 3 kVA rating, and 60 Hz single‑phase operation, it delivers predictable performance in demanding environments. Its indoor‑outdoor capability and clean form factor fit typical panel-building workflows, helping you speed deployment while maintaining safety and power quality.
Product Information
Extended Description
S20N11S03S6 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, 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
S20N11S03S6
UPC
786680112263
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
69 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
Grade 316 stainless steel enclosure (does not imply NEMA 4X rating).
Coil material
Aluminum
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
Feature: General-purpose encapsulated transformer design uses an EP enclosure for robust protection in practical environments. Business Impact: Reduces risk of moisture ingress and mechanical damage, lowering maintenance costs and downtime. Application: Ideal for compact control panels in manufacturing lines where reliability matters. Feature: 60 Hz single‑phase operation with 240 V/480 V primary and 120/240 V secondary. Business Impact: Flexible input/output supports diverse loads and simplifies spec alignment, improving project throughput. Application: Useful in automation cabinets and motor control centers. Feature: Aluminum coil construction with a 3 kVA VA rating. Business Impact: Lightweight yet durable, delivering efficient power transfer and lower material costs for large-scale deployments. Application: Suitable for mid‑sized power distribution in industrial plants. Feature: Indoor‑Outdoor weathershield capability with Grade 316 stainless steel enclosure noted in catalogs (not a guarantee of NEMA 4X). Business Impact: Expands installation options while clarifying enclosure expectations and compliance considerations. Application: Panels exposed to variable atmospheres in food, beverage, and process industries. Feature: Warranty and service terms (25-000 policy, 1 year from install or 18 months from shipment). Business Impact: Clear protection window reduces total cost of ownership and supports long‑term asset planning. Application: Procurement and maintenance planning for capital projects in facilities management.
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FAQs
For installation, mount the transformer in a protected space consistent with its indoor-outdoor capability. Note the catalog caution that enclosure is Grade 316 stainless steel (not a NEMA 4X rating) and verify any compliance requirements with the supplier. Ensure adequate clearance for heat dissipation and provide proper wiring access to the 240/480 V primary and 120/240 V secondary connections. Routine maintenance should include inspecting for moisture ingress and heat buildup in high-load scenarios.
The device is a single‑phase transformer rated at 3 kVA with a primary voltage of 240 V or 480 V and a secondary of 120/240 V, operating at 60 Hz. The aluminum coil design supports efficient power transfer and corrosion resistance. Wiring connection is specified as 3A in the data, and the unit accommodates indoor-outdoor installation, making it versatile for panel designs that require flexible input/output configurations.
Yes, it supports indoor-outdoor use per the weathershield designation. Catalog notes mention a Grade 316 stainless steel enclosure, though this does not imply a NEMA 4X rating. In practice, users should assess ambient conditions, vibration, and exposure to corrosives or moisture, and confirm any local IP or CE requirements with Eaton before deployment. The 115 °C rise rating also informs heat management strategies in dense panel layouts.
The product follows Eaton’s standard warranty policy: one year from the date of installation or eighteen months from shipment, whichever occurs first (policy 25-000). For service, ensure documentation of installation date and shipment records. Given the 3 kVA rating and robust enclosure, plan preventative maintenance around temperature rise and load profiles to maximize uptime and asset lifespan.
A 3 kVA rating defines the maximum apparent power the transformer can deliver to loads without overheating. In system design, this informs load sequencing, protection sizing, and margin calculations for peak demand. Coupled with a 60 Hz, single-phase configuration and 240/480 V input, engineers can plan balanced loads on the 120/240 V secondary for motors, controllers, and automation equipment, optimizing efficiency and reducing strain on feeders.