Eaton S20N11S25X General-Purpose Transformer - UL Listed
Part Number: S20N11S25X
Quick Summary
Eaton S20N11S25X general-purpose encapsulated transformer provides clean, reliable power for industrial control panels. Manufacturers frequently face tight spaces, harsh environments, and rising maintenance costs when expanding power distribution. This unit carries UL Listed certification and a rugged NEMA 3R enclosure, suitable for indoor-outdoor service, with 50/60 Hz operation. With a 25 kVA rating and aluminum coil construction, it delivers durable performance that reduces downtime and simplifies wiring, installation, and service across power management and distribution applications. Designed for compatibility with standard control panels, it helps accelerate project timelines while delivering steady voltage and protection against environmental exposure.
Product Information
Extended Description
S20N11S25X Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 182, 50-60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 25 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S25X
UPC
786680080852
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
398 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
50/60 Hz
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
182
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
3A
Frequency rating
50-60 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
The S20N11S25X delivers a 25 kVA, single-phase rating with 240/480 V primary and 120/240 V secondary, enabling robust control circuits and motor loads within a compact footprint. This sizing reduces panel space and wiring complexity while supporting scalable power distribution for automation equipment in manufacturing lines and process control. Aluminum coil construction provides durable electrical performance with favorable thermal characteristics, contributing to longer service life and stable voltage regulation under varying load conditions. The enclosure is certified for indoor-outdoor use (NEMA 3R) with Weathershield capabilities, allowing outdoor installations without extra housings and minimizing maintenance overhead. The transformer operates at 50–60 Hz, broadening compatibility for global automation projects. Installation simplicity is enhanced by a straightforward wiring scheme (3A) and standard frame (182) dimensions, supporting efficient field mounting and replacement. Finally, UL Listed certification reinforces compliance and reliability for critical control applications in power management and distribution systems.
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FAQs
The S20N11S25X uses a NEMA 3R enclosure suitable for indoor-outdoor service and a mounting footprint defined by a 14.12 inch depth, 23.31 inch height, and 16.35 inch width with a 182 frame. It features a 3A wiring connection and does not include external taps, simplifying mounting and wiring in standard control panel configurations.
This transformer is a single-phase device rated at 25 kVA with 240 V and 480 V primary voltages and a 120/240 V secondary output. It operates at 50–60 Hz and has a 115 °C rise, providing stable performance under typical industry loads in control circuits and automation panels.
Yes. The S20N11S25X is designed for indoor-outdoor service with a NEMA 3R enclosure and Weathershield capability, protecting critical windings and connections from weather, dust, and moisture while maintaining reliability in outdoor installations.
The unit is UL Listed, signaling compliance with recognized safety standards for electrical equipment. This certification, combined with the NEMA 3R enclosure rating, supports safe operation in varied environments, reducing compliance risks for panel builders and integrators.
With a rugged aluminum coil design, a robust 25 kVA rating, and a durable NEMA 3R enclosure, the transformer provides long service life and reduced downtime. The UL Listed certification simplifies procurement and compliance, while its single-phase, 50–60 Hz compatibility minimizes spare part diversity, contributing to lower total cost of ownership and faster project delivery.