Eaton S20N11S15SS Encapsulated Transformer - UL Listed
Part Number: S20N11S15SS
Quick Summary
Eaton S20N11S15SS encapsulated transformer provides reliable power conversion for control panels and light industrial sites. Engineers often wrestle with moisture, corrosion, and tight spaces that complicate installation and maintenance. UL Listed certification, a NEMA 3R enclosure, and a Grade 304 stainless steel enclosure ensure rugged performance in indoor-outdoor environments. This transformer is well suited for control panel and distribution workloads, delivering consistent power to automation systems while simplifying procurement and service expectations.
Product Information
Extended Description
S20N11S15SS Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: none, sv: 120/240v, 115°c, 15 kva, al windings, frame: 180, indoor-outdoor
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S15SS
UPC
786680000119
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
205 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
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
180
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
15 kVA
Weathershield
Indoor-Outdoor
Encapsulated construction provides a robust barrier against moisture, dust, and incidental splash, safeguarding windings and insulation in challenging industrial environments. This protective envelope reduces derating risks, minimizes maintenance cycles, and extends service life in automation-heavy applications where reliability matters most. Aluminum windings paired with epoxy encapsulation enhance heat dissipation and mechanical resilience in hot, crowded control panels. The improved thermal performance translates into lower temperature rise under peak loads, higher efficiency, and longer transformer life in continuous operation. The dual primary and secondary voltages simplify integration with existing power rails: 240/480 V input and 120/240 V outputs cover common PLCs, drives, and distribution circuits. With no taps to adjust and field-wiring kept straightforward, installation time is reduced and commissioning is faster. NEMA 3R enclosure and Grade 304 stainless steel catalog enclosure deliver superior corrosion resistance for indoor-outdoor installations. This combination supports reliable service on factory floors, in outdoor enclosures, and in environments with wash-down or high humidity. The 15 kVA rating at 60 Hz with a 115°C rise provides substantial headroom for typical automation loads while preserving energy efficiency. The compact 180 frame and reasonably priced weight facilitate mounting in crowded panels and retrofit projects. Wiring connections are designed for ease with a 3A configuration, reducing installation time and minimizing wiring errors. Compatibility with Eaton catalogs and standard components improves procurement, maintenance, and serviceability across facilities. UL Listed certification supports compliance audits and safety standards, while guaranteed indoor-outdoor readiness aligns with maintenance planning and uptime goals. A one-year warranty (or eighteen months from shipment) provides predictable support for system integrators and end users.
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FAQs
Plan for a sturdy, level mounting surface with clearances for ventilation and wiring access. The NEMA 3R enclosure provides outdoor-ready protection, but maintain ambient temperature limits and provide appropriate space for exhaust and cable entry. Use the 3A wiring configuration to simplify field connections and ensure secure mechanical mounting in control panels.
The unit is a single-phase transformer rated at 15 kVA, with primary voltages of 240 V and 480 V and secondary voltages of 120/240 V. It operates at 60 Hz with a 115°C temperature rise. Winding material is aluminum, and there are no taps to adjust, which streamlines installation and reduces field wiring complexity.
Yes. The encapsulated design, combined with a NEMA 3R indoor-outdoor enclosure and Grade 304 stainless steel catalog enclosure, provides corrosion resistance and protection against moisture. UL Listed certification further confirms compliance for rugged environments, making it well-suited for factory floors, exterior panels, and wash-down zones.
The transformer carries UL Listed certification and is housed in a NEMA 3R enclosure with a Grade 304 stainless steel catalog enclosure option. These protections support safe operation in indoor-outdoor settings, improve reliability in corrosive environments, and facilitate regulatory compliance during audits and safety inspections.
Eaton’s policy provides a one-year warranty from the date of installation or an eighteen-month window from shipment, whichever occurs first. This coverage, combined with UL certification and Eaton’s service network, supports predictable downtime management, fast replacement parts, and reduced risk for mission-critical automation projects.