Eaton S20N11B15SS General-Purpose Transformer - UL Listed
Part Number: S20N11B15SS
Quick Summary
The Eaton S20N11B15SS general-purpose transformer delivers reliable low-voltage power for control panels and industrial machinery. In many projects, selecting a transformer that withstands harsh environments and fits a compact footprint is a growth hurdle; this unit is designed to simplify that decision with a rugged enclosure and flexible voltage options. It features a NEMA 3R enclosure and UL Listed certification to support safer outdoor installations without compromising performance. This combination delivers business value by reducing installation time, improving reliability in varying conditions, and aligning with power-management goals in modern automation systems. For engineers and procurement teams, it also supports scalable power distribution in mixed-voltage environments while maintaining a compact form factor.
Product Information
Extended Description
S20N11B15SS Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 182, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 80 °C rise, 15 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11B15SS
UPC
786680051951
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
375 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
Grade 304 stainless steel enclosure
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
182
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
80 °C rise
Volt ampere rating
15 kVA
Weathershield
Indoor-Outdoor
Feature: General-purpose encapsulated transformer with aluminum coil. Business Impact: Improves corrosion resistance and heat dissipation while reducing weight compared to copper windings in equivalent ratings. Application: Suitable for control panels and machine assemblies in damp or outdoor settings where space is at a premium. Feature: NEMA 3R enclosure with Grade 304 stainless steel enclosure notes. Business Impact: Delivers robust protection against dust, rain, and temperature variation, enabling outdoor or indoor-outdoor installations without compromising safety. Application: Ideal for outdoor equipment huts, electrical rooms adjacent to manufacturing floors, and weather-prone sites. Feature: 60 Hz, single-phase operation with 15 kVA rating. Business Impact: Provides ample power for multiple control loads with ample headroom, improving startup reliability and reducing transformer spiking. Application: Powering motor starters, relays, and control circuits in automation lines. Feature: Primary voltage options of 240 V and 480 V with secondary 120/240 V. Business Impact: Enables flexible site deployment and simplifies cross-site rollouts without additional transformers. Application: Deployment across facilities using mixed-voltage equipment. Feature: Indoor-outdoor compatibility (Weathershield), UL Listed safety certification. Business Impact: Streamlines compliance, procurement approval, and maintenance planning, while delivering peace of mind for long-term reliability. Application: Industrial power distribution in harsh environments with rigorous safety requirements. Feature: 182-frame, 16.35 in width, 23.31 in height, 14.12 in depth, 375 lb weight. Business Impact: Predictable footprint aids enclosure planning and rack or cabinet integration, reducing installation surprises. Application: Retrofit or new installations in existing control cabinets and mechanical rooms. Feature: Temperature rise 80 °C and 60 Hz operation. Business Impact: Indicates insulation and thermal performance suitable for continuous operation under typical industrial loads. Application: Environments with elevated ambient temperatures or high-duty-cycle loads.
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FAQs
Yes. The S20N11B15SS is designed with a NEMA 3R enclosure and indoor-outdoor protection, making it suitable for outdoor control panels and damp environments. Its aluminum-wound coil and robust enclosure minimize corrosion risk, while the compact 182 frame aids integration into standard electrical cabinets and mounting spaces.
The unit provides 240/480 V primary and 120/240 V secondary with a 15 kVA rating. It operates at 60 Hz in a single-phase configuration, delivering dependable power to control circuits, relays, and small motors within industrial automation systems.
Yes. With a rugged NEMA 3R enclosure and Weathershield capability for indoor-outdoor use, it is well-suited to control panels and process equipment located in damp, dusty, or outdoor environments. The 80 °C rise and aluminum coil design balance efficiency with resilience for continuous operation.
The S20N11B15SS is UL Listed, signaling compliance with recognized safety standards and easier procurement approvals. The combination of UL certification, a weather-resistant enclosure, and corrosion-resistant enclosure notes supports regulatory alignment for industrial installations and reduces vendor risk during audits.
The transformer includes a one-year warranty from installation or eighteen months from shipment, whichever comes first. Maintenance considerations are minimal due to the encapsulated aluminum design and solid enclosure; regular inspection for enclosure seals and connection integrity suffices, helping minimize downtime and extend service life.