Eaton S20L11S25N General-Purpose Transformer - UL Listed
Part Number: S20L11S25N
Quick Summary
S20L11S25N General-Purpose encapsulated transformer delivers reliable power conversion for control panels and industrial equipment. When space is tight or harsh environments challenge performance, this unit offers rugged operation and easy installation. UL Listed safety certification with a NEMA 3R enclosure supports reliable indoor-outdoor service, while aluminum windings help reduce weight and heat. Beyond these specs, the transformer pairs 25 kVA with 240/480 V primary and 120/240 V secondary, delivering business value in low voltage distribution. Its taps provide moderate voltage flexibility for control systems, and the device is suited for installation in both electrical rooms and outdoor installations with the right weatherproofing.
Product Information
Extended Description
S20L11S25N Eaton: Eaton General-Purpose Encapsulated Transformer, EP, Single-phase, PV: 240 X 480V, Taps: 2 at -5% FCBN X 4 at -2.5% FCBN, SV: 120/240V, 115°C, 25 kVA, Al windings, Frame: 182, Indoor-Outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11S25N
UPC
786680109355
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
376 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
182
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
25 kVA
Weathershield
Indoor-Outdoor
Feature: General-Purpose encapsulated design reduces enclosure leakage and provides safe isolation between primary and secondary circuits. Business Impact: This rugged construction minimizes fault pathways and simplifies field servicing, lowering maintenance costs over the product lifecycle. Application: Ideal for control panels and machine enclosures in manufacturing environments where 25 kVA capacity and reliable performance are required. Feature: Aluminum windings improve thermal performance and reduce weight. Business Impact: Lower operating temperatures and easier handling during installation translate into energy efficiency and reduced installation time. Application: Indoor-outdoor installations and service cabinets where heat buildup and weight are critical considerations. Feature: Tap changes provide voltage flexibility with 2 at -5% FCBN and 4 at -2.5% FCBN. Business Impact: This enables tighter voltage regulation across fluctuating supplies, reducing nuisance tripping and equipment wear. Application: Power distribution in plants with variable line voltages and mixed motor loads. Feature: 25 kVA rating with 240/480 V primary and 120/240 V secondary. Business Impact: Delivers solid headroom for automation circuits, enabling reliable control, sensing, and protection without oversized transformers. Application: Control systems, PLCs, and instrumentation panels in automation cells. Feature: NEMA 3R enclosure and Indoor-Outdoor capabilities. Business Impact: Rugged performance in damp, dusty, or weather-exposed spaces, reducing enclosure upgrades and downtime. Application: Outdoor electrical rooms and unconditioned areas in factories and warehouses. Feature: UL Listed certification and Eaton warranty. Business Impact: Compliance with safety standards and a defined service window protects procurement decisions and lifecycle costs. Application: Industrial buyers seeking certified, supported transformers for critical infrastructure.
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FAQs
The S20L11S25N fits typical control cabinet footprints thanks to its 16.35 in width, 23.31 in height, and 14.12 in depth. With a frame 182 construction and a 23A wiring connection, it aligns with standard panel mounting practices and supports straightforward retrofits in existing layouts. Its NEMA 3R enclosure enables indoor-outdoor installation with UL safety assurance.
Primary voltage is selectable at 240 V or 480 V, while the secondary delivers 120/240 V. The unit operates at 60 Hz and is rated for 25 kVA, making it suitable for a wide range of automation loads and instrumentation within industrial environments.
Yes. The S20L11S25N uses a NEMA 3R enclosure and is designed for indoor-outdoor service, supporting rugged operation in damp or dusty spaces once properly installed and connected to a weather-protected system.
Eaton provides a warranty aligned with their policy: one year from installation or eighteen months from shipment, whichever occurs first. This, combined with UL Listed certification, offers regulatory confidence and ongoing technical support for critical infrastructure.
The transformer delivers headroom for automation loads, reduced cooling and energy losses due to aluminum windings, and easier maintenance through rugged encapsulation. Over time, these features translate to lower downtime, simpler servicing, and improved panel reliability in manufacturing and distribution environments.