Eaton S20K11E10CU Transformer - 10 kVA, NEMA 3R, UL Listed
Part Number: S20K11E10CU
Quick Summary
Eaton S20K11E10CU is a general purpose encapsulated transformer that provides reliable power conversion for industrial control panels and power-distribution setups. Engineers often grapple with moisture exposure, voltage compatibility, and installation complexity; this transformer mitigates those issues with a rugged NEMA 3R enclosure, copper windings, and clear tap settings. UL Listed certification underpins safety and compliance, while its 60 Hz single-phase design suits most facility applications; the 240/480 V primary and 120/240 V secondary offer versatile deployment. By combining a compact footprint with a robust 10 kVA rating, it enables scalable automation layouts and reduces spare parts costs across plant networks.
Product Information
Extended Description
S20K11E10CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, 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, 21A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11E10CU
UPC
786680060502
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
215 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
Coil material
Copper
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
21A
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
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Copper-wound output and a 10 kVA rating deliver high efficiency with low copper losses, translating to lower operating costs and cooler operation under steady loads in automation panels. This feature directly supports predictable performance, improved energy use, and longer component life in mission-critical systems. The 60 Hz, single-phase design aligns with typical industrial power systems, simplifying integration and reducing commissioning time. A copper coil also improves thermal stability, enabling more accurate voltage regulation in dynamic manufacturing lines where loads vary. The NEMA 3R enclosure and electrostatically shielded construction protect against moisture, dust, and EMI, boosting uptime in mixed environments and facilitating easier maintenance across multiple sites. The indoor-outdoor Weathershield rating offers flexibility for location-shifting installations and inventory simplification for field teams. UL Listed certification reinforces safety and compliance, reducing risk during audits and supplier qualification. Overall, the transformer supports scalable, reliable power distribution with a compact footprint and standardized voltages to minimize panel overcrowding and spare-part proliferation.
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FAQs
Yes. The S20K11E10CU features a NEMA 3R enclosure designed for indoor-outdoor installation, protecting copper windings and electrical connections from moisture, dust, and debris while enabling flexible site placement in exposed environments.
This unit is a 60 Hz, single-phase transformer with a 240/480 V primary and a 120/240 V secondary, rated at 10 kVA. Its copper windings support efficient operation and stable voltage regulation across typical industrial loads.
Ideal for control panels, power-distribution blocks, and automation equipment that require reliable 10 kVA power conversion with versatile primary voltages (240/480 V) and secondaries (120/240 V), all in a rugged encapsulated package suitable for factory floors and outdoor installations.
The S20K11E10CU is UL Listed, providing recognized safety compliance for electrical products. It also features a NEMA 3R enclosure suitable for indoor-outdoor use, aligning with common industry standards for rugged transformers.
The product carries Eaton’s warranty policy, typically one year from installation or eighteen months from shipment, whichever occurs first. Routine checks focus on secure connections and thermal performance; the copper windings and robust enclosure minimize maintenance and part replacement, contributing to favorable total cost of ownership in continuous-operating facilities.