Eaton S20K11S10N General-Purpose Encapsulated Transformer - UL Listed 10 kVA
Part Number: S20K11S10N
Quick Summary
The Eaton S20K11S10N is a general-purpose encapsulated transformer that delivers reliable voltage conversion for control panels and industrial equipment. In harsh environments, securing consistent operation while managing space and enclosure protection is a top challenge; this unit’s NEMA 3R enclosure and indoor-outdoor rating address it. UL Listed safety certification, along with rugged aluminum coil construction and elevated temperature rise tolerance, supports long service life in demanding installations. By combining compact footprint with robust protection, it reduces wiring complexity and supports easy retrofits in existing panels. This transformer also aligns with standard 60 Hz power systems and single-phase layouts, delivering predictable performance and cost-efficient power distribution for modern automation lines.
Product Information
Extended Description
S20K11S10N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 179, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, 1 at -10% FCBN X 2 at -5% FCBN, 115 °C rise, 10 KVA, indoor-outdoor, 9A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S10N
UPC
786680102318
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
191 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
179
Tap size
1 at -10% FCBN x 2 at -5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
9A
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
10 kVA
Weathershield
Indoor-Outdoor
Feature: 10 kVA single-phase rating provides sufficient capacity for control loads while keeping the physical footprint manageable, enabling compact panel designs and easier installation. Business impact: improves both space utilization and energy efficiency in automation racks; Application: control panels, machine builds, and small-to-medium automation loops. Feature: Primary voltage options of 240 V and 480 V with secondary 120/240 V offer flexible sourcing and cross-domain compatibility; Application: installations requiring mixed-voltage feeds or retrofit projects without rewiring. Feature: NEMA 3R enclosure with indoor-outdoor suitability makes outdoor and partially protected spaces viable; Business impact: reduces weather-related downtime and maintenance costs; Application: outdoor equipment houses, loading bays, and yard installations. Feature: Aluminum coil construction lowers material costs and enhances corrosion resistance while maintaining reliable conductivity; Application: long-term reliability in challenging industrial environments. Feature: Tap sizing 1 at -10% FCBN and 2 at -5% FCBN enables voltage regulation to accommodate supply variations; Business impact: minimizes voltage-related performance issues and extends equipment life; Application: panel boards in buildings with fluctuating line voltages. Feature: 115 °C rise and robust insulation protection support peak-load tolerance; Application: high-demand operations with short-duration surges. Feature: 9A wiring connection and 19 in height, 13.38 in width, 10.52 in depth balance ease of installation with mounting constraints; Business impact: simplifies retrofits and cabinet planning. Feature: UL Listed certification meets safety compliance expectations; Warranty of 1 year from installation or 18 months from shipment provides procurement assurance; Application: procurement and maintenance planning for industrial control systems.
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FAQs
Plan for a compact footprint with dimensions 19 in high, 13.38 in wide, and 10.52 in depth. Use the 9A winding connection scheme and connect primary windings at 240 V or 480 V while routing the 120/240 V secondary outputs to the control circuits. Ensure proper clearance for heat dissipation and follow standard panel wiring practices for encapsulated transformers.
The unit is a single-phase 10 kVA transformer operating at 60 Hz with a 115 °C rise. Primary voltages are 240 V and 480 V, secondary voltages are 120/240 V, and it features an aluminum coil. It is UL Listed and designed for indoor-outdoor use in NEMA 3R environments, making it suitable for varied industrial applications.
Yes. The transformer features a NEMA 3R enclosure and Weathershield indoor-outdoor capability, which provides protection against moisture and dust in outdoor or semi-exposed installations while maintaining reliable performance in harsh environments.
The S20K11S10N carries UL Listed safety certification. It includes a warranty policy of one year from installation or eighteen months from shipment, whichever comes first, offering procurement and maintenance risk mitigation for industrial projects.
Take advantage of the 10 kVA rating and 60 Hz single-phase design to minimize spare capacity while meeting control-load demands. Use the 1 at -10% and 2 at -5% tap settings to optimize voltage regulation for varying input conditions. Its aluminum windings and rugged enclosure reduce maintenance costs and downtime in automation facilities.