Eaton S20K11S15LS47 General-Purpose Encapsulated Transformer - UL Listed
Part Number: S20K11S15LS47
Quick Summary
Eaton general purpose encapsulated transformer provides reliable single‑phase power for industrial control panels and equipment rooms. Engineers often confront noise, weather exposure, and compatibility issues when upgrading legacy systems. This unit is UL Listed and designed with a NEMA 3R enclosure for indoor‑outdoor use, ensuring safety and resilience in demanding environments. With 60 Hz operation and 15 kVA rating, it supports 240/480 V primary and 120/240 V secondary configurations, enabling flexible control circuit integration. By delivering robust protection alongside a compact footprint, it reduces installation complexity, minimizes maintenance, and supports scalable power in modern automation installations.
Product Information
Extended Description
S20K11S15LS47 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 180, 60 Hz, low sound 47 dB, single-phase, 240 V, 480 V, 120/240 V, 1 at -10% FCBN X 2 at -5% FCBN, 115 °C rise, 15 KVA, indoor-outdoor, 9A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20K11S15LS47
UPC
786680065101
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
109 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
Low sound equal to 47 dB
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
180
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
15 kVA
Modification 1
Low sound 47 dB
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20K11S15LS47
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 15 kVA single‑phase transformer with 240/480 V primary and 120/240 V secondary voltages → Business Impact: Enables efficient step‑down power for control circuits and automation modules, reducing the need for multiple separate transformers → Application: Control panels and machine automation in automotive, packaging, and process industries. Feature: NEMA 3R enclosure with indoor‑outdoor suitability → Business Impact: Weather‑resistant protection lowers downtime and enclosure customization costs → Application: Outdoor switchgear, equipment rooms, and harsh factory floors. Feature: Aluminum coil construction → Business Impact: Lighter weight and corrosion resistance improve installation speed and long‑term reliability → Application: Mobile skid installations and remote control panels where weight is a concern. Feature: Low sound level of 47 dB → Business Impact: Quiet operation supports compliance in shared spaces and noise‑sensitive environments → Application: Control rooms, compact automation cells, and near personnel workstations. Feature: Tap change capability 1 at -10% FCBN and 2 at -5% FCBN → Business Impact: Voltage compensation to accommodate supply variation and ensure stable downstream voltages → Application: Critical machine controls and lighting circuits sensitive to input fluctuations. Feature: Indoor‑Outdoor weathering and UL Listed certification → Business Impact: Meets safety and durability standards, simplifying procurement and commissioning → Application: Industrial facilities with mixed indoor and outdoor installations, warehouses, and distribution centers. Feature: 60 Hz, 115 °C rise, 9 A wiring connection → Business Impact: Reliable operation within standard North American power systems and straightforward wiring diagrams → Application: Standard control cabinets and panel boards across manufacturing sectors. Overall: The S20K11S15LS47 combines a compact footprint with robust protections, enabling manufacturers to consolidate spares, streamline maintenance, and meet regulatory expectations while delivering proven performance in industrial automation environments.
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FAQs
Begin with verifying the 240/480 V primary and 120/240 V secondary wiring diagrams, then mount the unit in a compliant enclosure to meet the NEMA 3R requirement. Connect the primary and secondary circuits per the 60 Hz design, observe the 9 A wiring connection guideline, and set the voltage taps to compensate for supply variations (-10% FCBN and -5% FCBN as needed). Ensure proper grounding and clearance for heat dissipation and access for maintenance. Final checks should include insulation resistance tests and adherence to Eaton’s installation policy to maintain UL Listing integrity.
This is a 15 kVA, single‑phase transformer with 240/480 V primary and 120/240 V secondary, designed for 60 Hz operation. It has an indoor‑outdoor NEMA 3R enclosure, a 115 °C rise rating, and 47 dB sound level. The coil material is aluminum, and it includes taps at -10% FCBN and -5% FCBN to accommodate voltage variations, with a 9 A wiring connection specification.
Yes. The transformer features a NEMA 3R enclosure and is rated for indoor‑outdoor service, making it well suited for outdoor installations, equipment rooms, and weather‑exposed industrial sites. UL Listed certification reinforces compliance with safety standards, while the indoor‑outdoor capability reduces the need for separate equipment housings and simplifies site planning.
The S20K11S15LS47 carries UL Listed certification, confirming compliance with safety standards for electrical equipment. The NEMA 3R enclosure rating supports outdoor and harsh indoor environments. The combination of UL Listing and enclosure rating assures reliability for panel builders and end users in industrial automation and power distribution applications.
Eaton provides a standard warranty aligned with Selling Policy 25-000: one year from date of installation or eighteen months from shipment, whichever occurs first. This warranty covers manufacturing defects and supports authorized service through Eaton or its partners. Documentation and datasheets, including the specification sheet, provide guidance for maintenance and replacement parts.