Eaton S20N08A26N Transformer - NEMA 3R UL Listed
Part Number: S20N08A26N
Quick Summary
Eaton S20N08A26N Transformer delivers compact voltage transformation for panel boards and equipment. Industrial controls often struggle with voltage mismatches and outdoor exposure that complicate startups. This unit is UL Listed and housed in a NEMA 3R enclosure, suitable for indoor-outdoor service. With a 0.25 kVA rating and 60 Hz operation, it supports reliable power to controls and instrumentation, while the buck-boost general-purpose design helps maintain stable voltages in systems with supply fluctuations. The result is improved availability and reduced maintenance costs in rugged automation environments.
Product Information
Extended Description
S20N08A26N Eaton: Eaton General purpose encapsulated transformer, buck-boost general-purpose encapsulated transformer, EP, aluminum, NEMA 3R, 56, 60 Hz, single-phase, 240 V, 480 V, 24/48 V, NONE, 115 °C rise, 0.25 KVA, indoor-outdoor, 3D
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N08A26N
UPC
786680383267
Product Length/Depth
4.06 in
Product Height
8.5 in
Product Width
4.87 in
Product Weight
11 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
56
Tap size
None
Type
Buck-Boost General-Purpose Encapsulated Transformer
Wiring connection
3D
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
24/48 V
Temperature rise
115 °C rise
Volt ampere rating
0.25 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: Compact encapsulated form factor saves cabinet space and accelerates installation, improving panel density and reducing wiring costs in machine centers. This buck-boost transformer delivers reliable voltage conversion from 240/480 V to 24/48 V for control circuits, enabling standardization of spares and faster commissioning across equipment fleets. Feature → Application: NEMA 3R enclosure provides indoor-outdoor protection, supporting outdoor control panels and weather-exposed installations while maintaining safety and compliance. Feature → Application: Aluminum coil and EP design offer corrosion resistance and efficient heat management, enabling continuous operation up to a 115 °C rise and reducing cooling requirements in hot environments. Feature → Application: 0.25 kVA single-phase, 60 Hz with 56 frame and 3D wiring simplifies wiring schematics and minimizes voltage drop across loads, improving overall system reliability. Feature → Application: UL Listed certification and documented warranty help drive procurement confidence, enabling compliant deployments in regulated facilities and delivering predictable ROI for maintenance teams.
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FAQs
The S20N08A26N is a compact, single-phase transformer with 240/480 V primary and 24/48 V secondary, rated at 0.25 kVA. It uses a 3D wiring connection and comes in a NEMA 3R enclosure, making it suitable for indoor-outdoor installations. Plan for proper clearance, heat dissipation, and secure mounting to ensure reliable operation within a standard panel.
Key specs include 0.25 kVA VA rating, 60 Hz frequency, single-phase operation, primary voltage of 240 V and 480 V, secondary voltage of 24/48 V. The enclosure is NEMA 3R and the coil material is aluminum, with an 115 °C rise and a 56 frame. These factors support stable control voltages in varied environments.
Yes. The S20N08A26N is designed for indoor-outdoor use thanks to its NEMA 3R enclosure and rugged construction. UL Listed certification further confirms safety compliance for outdoor control panels and weather-exposed equipment commonly found in industrial facilities.
The transformer is UL Listed and housed in a NEMA 3R enclosure. UL Listing confirms electrical safety compliance, while the NEMA 3R rating ensures protection against ingress and weather for outdoor or semi-enclosed installations, helping manufacturers meet regulatory and facility standards more easily.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. This support reduces maintenance risk and provides a predictable ROI. When paired with low-loss operation and minimal maintenance needs, this transformer lowers lifecycle costs for panel builders and end users.