Eaton S20N11S26X Transformer - UL Listed
Part Number: S20N11S26X
Quick Summary
Eaton S20N11S26X Transformer provides general-purpose encapsulated power conversion for industrial control and automation applications. Operators often contend with cramped panels, environmental exposure, and complex voltage rails that complicate procurement and installation. Key standards include UL Listed safety certification and a rugged NEMA 3R enclosure, plus 50/60 Hz compatibility, ensuring reliable operation across environments. Designed for indoor-outdoor use, aluminum windings, and a 0.25 kVA rating, it delivers consistent performance while helping reduce wiring complexity and overall panel size. By selecting this transformer, engineers gain predictable voltage regulation for sensitive loads and a supplier with documented warranty and datasheets that streamline procurement and quality audits.
Product Information
Extended Description
S20N11S26X Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 56, 50-60 Hz, single-phase, 240 V, 480 V, 120/240 V, 2 at -5% FCBN, 115 °C rise, 0.25 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S26X
UPC
786680068348
Product Length/Depth
4.06 in
Product Height
8.97 in
Product Width
4.87 in
Product Weight
13 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
56
Tap size
2 at -5% FCBN
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
0.25 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11S26X
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: General-purpose encapsulated transformer with aluminum windings and EP design. Business Impact: lightweight construction improves installation efficiency and heat dissipation in dense control panels, reducing labor time and support costs. Application: ideal for compact machine control cabinets and distributed power segments. Feature: NEMA 3R indoor-outdoor enclosure. Business Impact: rugged protection against weather and dust, enabling outdoor or mixed environments without enclosure swaps, lowering maintenance calls. Application: outdoor machine stations, warehouse drives, and express line shutoffs. Feature: Dual primary/secondary voltages 240/480 V to 120/240 V. Business Impact: voltage flexibility supports regional electrical systems and equipment diversity, reducing the need for multiple transformers. Application: cross-site equipment and multi-voltage control loops. Feature: Tap size 2 at -5% FCBN. Business Impact: precise voltage adjustment under varying load, improving regulation for sensitive sensors and PLC inputs. Application: fine-tuning in dynamic automation circuits. Feature: 50/60 Hz single-phase operation. Business Impact: broad compatibility with global automation platforms, simplifying inventory and cross-border deployments. Application: general-purpose panel power for standard automation gear. Feature: UL Listed certification and 115°C rise with 0.25 kVA rating. Business Impact: safety compliance and thermal performance translate into reduced risk and predictable performance. Application: systems requiring safety audit readiness and stable load handling. Feature: Weathershield Indoor-Outdoor, aluminum coil, 4.06 in L, 8.97 in H, 4.87 in W, 13 lb weight. Business Impact: compact, durable form factor that saves cabinet space and supports easy field routing. Application: space-constrained automation installations and retrofit projects.
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FAQs
Plan for a NEMA 3R rated enclosure and a compact footprint (4.06 in L x 4.87 in W x 8.97 in H) with a 13 lb weight. Use aluminum windings and a 2‑tap -5% FCBN to fine-tune output from 240/480 V to 120/240 V. Connect wiring per 3A wiring guidelines and UL safety standards. This minimizes panel depth while preserving accessibility for maintenance and testing.
Verify 0.25 kVA VA rating, single-phase configuration, primary voltages of 240/480 V, secondary voltages of 120/240 V, and a frequency rating of 50–60 Hz. The 115 °C rise rating indicates thermal performance, while UL Listed certification confirms safety compliance. Ensure the application load remains within 0.25 kVA to prevent overheating and voltage drop in critical circuits.
Yes. The NEMA 3R enclosure and indoor-outdoor Weathershield construction are designed for moisture and dust exposure, enabling reliable operation in exterior cabinets and wash-down areas. The aluminum windings contribute to corrosion resistance and weight savings, which simplifies outdoor installations and serviceability in harsh factory environments.
The S20N11S26X is UL Listed, meeting essential safety standards for electrical equipment. It uses a rugged EP design with a NEMA 3R enclosure for environmental protection. Warranty terms follow Eaton policy 25-000: one year from installation or 18 months from shipment, whichever comes first, aiding procurement audits and long-term support planning.
With an encapsulated aluminum winding design and a durable NEMA 3R enclosure, the unit minimizes moisture ingress, corrosion, and field maintenance. The compact footprint and straightforward voltage taps reduce installation time and spare inventory needs, while UL listing and warranty support provide predictable total cost of ownership and faster return on investment in automation projects.