Eaton S20N11S16CU General-Purpose Transformer UL Listed
Part Number: S20N11S16CU
Quick Summary
The Eaton general purpose encapsulated transformer S20N11S16CU provides compact power isolation for control panels. It helps prevent nuisance outages caused by voltage fluctuations and cramped panel spaces. Key qualifications include UL Listed certification and NEMA 3R enclosure suitability for indoor-outdoor service. Coupled with copper windings and a 1.5 kVA rating, it supports reliable automation, reduced downtime, and straightforward installation across power-management systems.
Product Information
Extended Description
S20N11S16CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 67, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 1.5 KVA, indoor-outdoor, 3A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S16CU
UPC
786680083198
Product Length/Depth
6.52 in
Product Height
13.41 in
Product Width
6.37 in
Product Weight
43 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
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
67
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
1.5 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S20N11S16CU
Selling Policy 25-000 - Distribution and Control Products and Services
Encapsulated copper-wound design delivers rugged reliability in harsh environments, reducing maintenance and leakage risks while delivering stable secondary voltage for critical automation equipment. This feature translates to measurable uptime gains and lower total cost of ownership for panel builders and OEMs deploying general-purpose transformers in industrial settings. The NEMA 3R enclosure enables safe indoor-outdoor operation, expanding installation options from protected plant rooms to exterior equipment housings without compromise. The 1.5 kVA rating balances load handling with a compact footprint, enabling more efficient cabinet layouts and easier retrofit projects in existing control panels. Primary voltage options of 240/480 V and secondary 120/240 V provide flexible integration with standard plant power architectures, reducing wiring complexity and part diversity. At 60 Hz and single-phase operation, compatibility with common North American electrical systems is preserved, while the 115 °C rise rating offers solid thermal headroom for continuous operation in moderate ambient conditions. UL Listed certification reinforces procurement confidence and audit readiness for compliance projects.
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FAQs
Install the encapsulated transformer in a clean, dry enclosure with adequate clearance for heat dissipation. Respect the NEMA 3R rating for indoor-outdoor placement and ensure mounting is secure to minimize vibration. Plan wiring with the 3A connection guidance and route primary and secondary leads to minimize cross-talk and voltage drop in dense panels.
The unit is a single-phase, 60 Hz transformer rated at 1.5 kVA. It supports 240 V or 480 V primary input and provides 120/240 V secondary output. Copper windings ensure efficiency and temperature stability, with a listed 115 °C rise. This combination suits standard industrial control circuits and automation equipment.
Yes. The S20N11S16CU uses a NEMA 3R enclosure designed for indoor-outdoor service, enabling reliable operation in weather-exposed environments while maintaining safety and performance in control panels and remote equipped stations.
Ideal for automation cabinets, machine control panels, conveyors, and packaging lines where space is limited and dependable voltage isolation is critical. The 1.5 kVA rating supports typical PLC inputs, relay coils, and small motor control circuits, delivering consistent performance in demanding industrial applications.
It carries UL Listed certification, confirming safety compliance for industrial use. The product is designed for indoor-outdoor service with NEMA 3R enclosure, supporting reliability in varied environments. Warranty terms align with Eaton Selling Policy 25-000, offering one year from installation or 18 months from shipment, whichever occurs first.