Eaton S20L11S10LS45 Transformer - UL Listed NEMA 3R
Part Number: S20L11S10LS45
Quick Summary
Eaton S20L11S10LS45 Transformer is a general-purpose encapsulated transformer optimized for reliable power distribution in industrial control panels. This solution addresses common installation challenges by combining rugged enclosure, low noise, and flexible voltage options in a compact footprint. Certifications such as UL Listed, NEMA 3R enclosure suitability, and 60 Hz operation assure compliance across indoor-outdoor environments, while its 10 kVA rating supports scalable power needs. Designed for efficiency and ease of integration, it complements power management strategies with a durable aluminum coil design and straightforward field tap adjustments, delivering business value through reduced downtime and simpler procurement for industrial facilities and machine rooms.
Product Information
Extended Description
S20L11S10LS45 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 179, 60 Hz, low sound 45 dB, single-phase, 240 V, 480 V, 120/240 V, 2 at -5% FCBN X 4 at -2.5% FCBN, 115 °C rise, 10 KVA, indoor-outdoor, 23A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S10LS45
UPC
786685267258
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
190 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 45 dB
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
179
Tap size
2 at -5% FCBN x 4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
23A
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
Modification 1
Low sound 45 dB
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: General-purpose encapsulated design with an aluminum coil and NEMA 3R enclosure delivers rugged durability and corrosion resistance, reducing maintenance costs and extending service life. This translates to lower total cost of ownership and fewer unscheduled outages in harsh environments, making it ideal for outdoor substations, industrial facilities, and machine rooms that demand reliability. Feature → Business Impact → Application: A 10 kVA, single-phase transformer with 240/480 V primary and 120/240 V secondary provides flexible load handling and reduces the need for multiple transformers, streamlining panel layouts and inventory management. This enables quicker deployments in control panels and equipment racks across manufacturing lines and processing facilities. Feature → Business Impact → Application: Low sound rating of 45 dB combined with indoor-outdoor capability enables discreet installations near workspaces or service bays, supporting compliance with noise regulations while preserving operator comfort. Ideal for machine rooms, test stations, and compact control cabinets in both indoor and outdoor settings. Feature → Business Impact → Application: Tap changes 2 at -5% FCBN x 4 at -2.5% FCBN provide fine voltage regulation to compensate for supply variation, reducing downstream equipment stress and improving performance in power-sensitive applications. Useful in facilities with variable utility voltages or long feeder runs. Feature → Business Impact → Application: A 115 °C rise insulation profile, UL Listing, and a robust aluminum winding reinforce safety and reliability, enabling operation in warm or outdoor environments without sacrificing performance. This is advantageous for outdoor panels, equipment rooms near heat sources, and facilities with limited climate control. Feature → Business Impact → Application: Indoor-outdoor suitability with a compact footprint (10.52 in L x 13.38 in W x 19 in H) and a weight of 190 lb supports straightforward installation, retrofit projects, and easier crane/hoist handling in existing electrical rooms or service entrances. This is ideal for upgrading legacy installations in plant floors and distribution panels.
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FAQs
The S20L11S10LS45 supports single-phase 60 Hz operation with 240/480 V primary and 120/240 V secondary voltages, making it compatible with common industrial control panels, machine rooms, and outdoor enclosures. Its NEMA 3R enclosure and UL Listing ensure safe integration in indoor-outdoor environments, while the 10 kVA rating accommodates diverse load requirements and simplifies spare parts planning.
A low-noise profile of 45 dB reduces acoustic impact in environments such as control rooms, maintenance bays, and nearby workstations. This improves operator comfort and complies with noise standards, enabling placement closer to critical equipment without compromising working conditions or surrounding processes.
Yes. The S20L11S10LS45 features an indoor-outdoor rating (NEMA 3R) and UL Listing, making it appropriate for exposed outdoor installations and challenging indoor environments. The rugged aluminum coil and robust enclosure are designed to withstand weather, dust, and routine industrial conditions while delivering reliable power transformation.
The transformer provides two -5% taps and four -2.5% taps (FCBN), enabling fine voltage regulation to compensate for supply variations along feeders. This reduces voltage fluctuation at downstream equipment, improving performance and longevity of sensitive loads in facilities with fluctuating utility voltages or long cable runs.
Eaton’s warranty follows policy 25-000: one year from installation or 18 months from shipment, whichever comes first. This coverage supports repair or replacement needs and paired service options, helping protect capital investment on critical power distribution equipment and ensuring ongoing reliability for industrial facilities.