Eaton S20N11S82N General-Purpose Transformer - UL Listed
Part Number: S20N11S82N
Quick Summary
Eaton S20N11S82N general-purpose encapsulated transformer provides isolated 120/240 V secondary from 240 V or 480 V primary for control panels and industrial equipment. When space is tight and reliability matters, engineers need a compact, weather-ready solution that installs quickly and with minimal wiring complexity. This unit carries UL Listed certification and uses a NEMA 3R enclosure suitable for indoor-outdoor service, backed by aluminum winding and a 115 °C rise rating for durability. With a 0.1 kVA rating, dual primary voltages of 240 V or 480 V, and a 120/240 V secondary, it adapts to a wide range of control architectures. The result is easier sourcing, lower inventory, and faster, compliant panel builds for machine builders and automation integrators.
Product Information
Extended Description
S20N11S82N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 54, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 0.1 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S82N
UPC
786680383021
Product Length/Depth
4 in
Product Height
6.5 in
Product Width
3.5 in
Product Weight
7 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
Catalog Notes
Model N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
54
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
0.1 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: Encapsulated, epoxy-impregnated construction provides rugged durability and weather resistance, reducing field failures and maintenance costs while enabling reliable operation in mixed indoor-outdoor environments. This supports machine builders and OEMs who require compliant, durable power conversion in harsh facilities. Feature → 0.1 kVA, single-phase transformer with dual primary voltages (240 V/480 V) and 120/240 V secondary; Benefit → flexible sourcing and reduced part variety, enabling simpler panel design and faster integration across multiple plant voltages. Feature → NEMA 3R enclosure and aluminum coil construction; Benefit → long-term reliability in temperature fluctuations and moisture exposure, improving uptime for control cabinets. Feature → 54 frame with compact dimensions (4 in L x 6.5 in H x 3.5 in W) and 7 lb weight; Benefit → easy mounting in confined spaces and straightforward retrofits, lowering installation time. Feature → UL Listed with a 115 °C rise rating; Benefit → enhanced safety compliance and predictable performance in demanding industrial settings. Feature → Indoor-outdoor weather shield designation; Benefit → eliminates need for separate housings when located outdoors or in partially protected areas, reducing total enclosure costs.
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FAQs
The transformer supports 240 V and 480 V as the primary voltages and provides a 120/240 V secondary on 60 Hz, single-phase operation.
Yes. It uses a NEMA 3R enclosure and is rated for indoor-outdoor service, with UL Listed certification for reliability in exposed environments.
The unit is approximately 4 inches long, 6.5 inches tall, and 3.5 inches wide, weighing about 7 pounds (54-frame design).
Warranty is Eaton Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first.
Datasheets and catalogs are available from Eaton, including the Specification Sheet for S20N11S82N and the Commercial Distribution Transformer catalog volume 2, Tab 2.