Eaton S20N11S07CUSS Encapsulated Transformer - UL Listed
Part Number: S20N11S07CUSS
Quick Summary
Eaton S20N11S07CUSS general purpose encapsulated transformer delivers reliable low-voltage power for control panels and motor starters. Engineers often face space constraints, enclosure compatibility, and wiring challenges when selecting a transformer for harsh environments. UL Listed protection, a NEMA 3R enclosure, and a Grade 304 stainless steel option support robust indoor-outdoor service, while keeping installation simple. With a 7.5 kVA rating and a single-phase design, this unit balances performance and footprint. In practice, it reduces panel size, accelerates commissioning, and lowers total cost of ownership by improving reliability and ease of maintenance. Its copper windings, 240/480 V primary and 120/240 V secondary, ensure stable voltage delivery even under load transients.
Product Information
Extended Description
S20N11S07CUSS Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: none, sv: 120/240v, 115°c, 7.5 kva, cu windings, frame: 178, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S07CUSS
UPC
786680068263
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
144 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
Grade 304 stainless steel enclosure
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
178
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
3A
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
7.5 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11S07CUSS
Selling Policy 25-000 - Distribution and Control Products and Services
Encapsulated construction and EP design provide a compact, sealed footprint that minimizes moisture ingress and field service time. This reduces downtime and supports fast, predictable commissioning in both new builds and retrofits. The transformer’s copper windings and 178 frame deliver low resistance losses and robust thermal performance, boosting efficiency for steady operation in production lines and outdoor cabinets. With a 240/480 V primary and 120/240 V secondary, the unit simplifies integration with common power distributions and reduces wiring complexity, helping projects stay on schedule in manufacturing and packaging environments. A 7.5 kVA rating suits multiple control loads, offering comfortable headroom for startup surges while maintaining compact enclosure footprints. The Grade 304 stainless steel enclosure option and Weathershield indoor-outdoor protection expand outdoor usability, lowering maintenance costs for exposed installations. UL Listed status provides confidence in safety and compliance, while a one-year warranty (or 18 months from shipment) supports asset protection and procurement reliability.
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FAQs
Yes. This is a single-phase encapsulated transformer with a 240/480 V primary and 120/240 V secondary. It operates at 60 Hz and uses copper windings for efficient voltage conversion, making it suitable for control panels and machine applications that demand stable, regulated voltages.
The unit is rated at 7.5 kVA with a temperature rise of 115 °C. This supports startup surges and continuous operation within standard insulation limits, ensuring reliable performance in demanding environments.
Yes. The S20N11S07CUSS is designed for indoor-outdoor use, featuring a NEMA 3R enclosure and optional Grade 304 stainless steel enclosure, enabling durable outdoor installations with reduced maintenance.
The transformer carries UL Listed certification, confirming safety compliance for electrical equipment. The enclosure design and materials support regulatory expectations for industrial panels and outdoor applications.
Warranty spans one year from installation or 18 months from shipment, whichever occurs first. Eaton’s Selling Policy 25-000 provides coverage terms, while standard support helps with replacement parts and field service planning.