Eaton S20N11S15N Transformer - 15 kVA, UL Listed
Part Number: S20N11S15N
Quick Summary
Eaton S20N11S15N transformer provides reliable power transformation for general-purpose control panels and industrial equipment. Designers often wrestle with mismatched voltages, bulky enclosures, and reliability gaps in demanding environments, which can drive up installation time and total cost of ownership. UL Listed safety certification, a rugged NEMA 3R enclosure for indoor-outdoor service, and aluminum windings designed for a 115°C rise help ensure performance in tough conditions. Designed for practical field use, it supports standard 240/480 V primary and 120/240 V secondary voltages, optimizing power distribution while simplifying maintenance. In short, this transformer combines durability with installation efficiency for industrial power systems.
Product Information
Extended Description
S20N11S15N Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: none, sv: 120/240v, 115°c, 15 kva, al windings, frame: 180, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S15N
UPC
786680103551
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
210 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
180
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
15 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11S15N
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The S20N11S15N is a general-purpose encapsulated transformer with EP design, aluminum windings, and a robust NEMA 3R enclosure. This combination reduces thermal stress, improves longevity, and simplifies outdoor or semi-outdoor installation in control cabinets, power distribution rooms, and equipment housings. The 15 kVA rating supports a wide range of control circuits and small-to-medium loads, enabling fewer components and a leaner bill of materials for machine builders. With a single-phase, 60 Hz footprint and dual primary voltages (240/480 V) to 120/240 V secondary, installers can adapt to evolving site power without redesign. The unit’s 210 lb weight and compact frame (180) help with mounting stability and space planning, while UL Listed certification provides ongoing compliance confidence for maintenance teams.
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FAQs
The S20N11S15N is a single-phase transformer rated at 15 kVA with 60 Hz operation. It has a dual primary voltage of 240 V or 480 V and a dual secondary voltage of 120 V or 240 V. The unit uses aluminum windings and features a 115 °C rise, with an enclosure rated for indoor-outdoor use (NEMA 3R).
Yes. The transformer is designed for indoor-outdoor service, featuring an NEMA 3R enclosure and Weathershield suitable for exposed or semi-exposed installations. UL Listed certification adds safety compliance, helping installers meet regulatory requirements while maintaining reliability in outdoor or semi-outdoor control cabinets.
Plan for the 180 frame and 210 lb weight, with a footprint of approximately 10.52 in L by 13.38 in W by 19 in H. The unit uses a 3A wiring connection and has no taps, simplifying labeling and wiring layouts. Ensure adequate ventilation around the enclosure and secure mounting in a stable location to manage heat rise and vibration in industrial environments.
With 240/480 V primary and 120/240 V secondary, this 15 kVA transformer suits a broad range of control-panel architectures and power-distribution schemes. It operates at 60 Hz and single-phase, providing straightforward integration with standard distribution components. Aluminum windings offer durability, while the NEMA 3R enclosure supports indoor-outdoor use in typical industrial settings.
The product carries Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. In addition, UL Listed certification and Eaton’s technical documentation, including specification sheets and catalog notes, underpin ongoing support for troubleshooting, replacement parts, and compliance verification.