Eaton S20N11E16CU Transformer - UL Listed, 1.5 kVA, 60 Hz
Part Number: S20N11E16CU
Quick Summary
Introducing the Eaton S20N11E16CU transformer, a general-purpose encapsulated unit for indoor-outdoor power distribution. This compact transformer is designed to survive rugged environments and tight installation spaces without compromising performance. Many teams struggle with electrical noise, weather exposure, and inconsistent voltage in control panels; this unit's electrostatically shielded construction helps mitigate EMI, while its NEMA 3R enclosure protects against rain and dust. UL Listed certification reinforces safety and compliance across industrial sites. By pairing copper windings with a 1.5 kVA rating and a 60 Hz, single-phase design, it delivers reliable power conversion in machine tools, packaging lines, and outdoor equipment. The result is improved uptime, reduced maintenance, and simpler integration with Eaton's distribution solutions.
Product Information
Extended Description
S20N11E16CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 67, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 1.5 KVA, indoor-outdoor, 90A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11E16CU
UPC
786680046742
Product Length/Depth
6.52 in
Product Height
13.41 in
Product Width
6.37 in
Product Weight
43 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
67
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
90A
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
1.5 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11E16CU
Selling Policy 25-000 - Distribution and Control Products and Services
Copper windings and epoxy encapsulation (EP) deliver low stray losses and rugged reliability, reducing heat buildup and extending service life in harsh environments. Feature → Business Impact → Application: Copper windings improve efficiency and thermal performance, which translates to lower energy waste and cooler operation in continuous duty panels; ideal for automation cabinets and low-profile switchgear. This transformer supports 60 Hz systems with 240/480 V primary and 120/240 V secondary, enabling seamless integration with common plant voltages. Application-wise, it suits machine tools, conveyors, and process controls where consistent power is critical. Feature → Safety and protection → Application: NEMA 3R enclosure provides indoor-outdoor protection, minimizing maintenance and enabling outdoor installations such as storefronts, loading docks, and outdoor equipment housings. The electrostatically shielded design reduces EMI, improving sensor accuracy and controller stability in automated lines. Feature → Reliability → Application: 1.5 kVA rating with 115 °C rise ensures dependable voltage conversion for compact footprint installations; compatible with 90A wiring connections for straightforward panel wiring. Feature → Compliance and support → Application: UL Listed certification, 1-year warranty with Eaton’s Selling Policy 25-000, and access to datasheets and catalogs streamline procurement and compliance in regulated facilities. This combination supports faster installation, easier auditing, and lower total cost of ownership in industrial automation setups.
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FAQs
Install the S20N11E16CU within a NEMA 3R-rated enclosure or a weather-protected cabinet to maximize the indoor-outdoor capability. Mount using standard panel hardware, wire primary to 240/480 V and secondary to 120/240 V, and ensure copper conductors are rated for the 90 A connection. Maintain adequate clearance for cooling and refer to the spec sheet for torque values and insulation class.
The unit is a single-phase general-purpose encapsulated transformer rated at 1.5 kVA with 60 Hz operation. Primary voltage options are 240 V or 480 V, and secondary voltage is 120/240 V. It uses copper windings, has an 115 °C rise, and is designed for indoor-outdoor service with a NEMA 3R enclosure and 90 A wiring connection.
Yes. The S20N11E16CU features an NEMA 3R enclosure and is rated for indoor-outdoor use, offering weather resistance suitable for outdoor installations and exposed accessory cabinets. Its electrostatically shielded copper windings further enhance reliability by minimizing EMI in industrial environments, supporting steady operation in outdoor tool yards or process areas.
Ensure the load is compatible with a 1.5 kVA rating and that the application voltage matches 240/480 V primary and 120/240 V secondary. Check physical dimensions (approximately 6.52 in depth, 13.41 in height, 6.37 in width) and weight (about 43 lb) for panel fitment, clearance, and mounting. Use UL-listed components and follow Eaton’s wiring guidelines for a safe, compliant retrofit.
This transformer carries Eaton’s one-year warranty from installation or eighteen months from shipment, whichever occurs first (Selling Policy 25-000). Customers can access the specification sheet, catalog, and warranty documentation for coverage details, installation tips, and performance data to support maintenance planning and ROI assessments.