Eaton S20N11E10A Transformer - UL Listed, 10 kVA, 60 Hz
Part Number: S20N11E10A
Quick Summary
Eaton S20N11E10A general purpose encapsulated transformer powers control panels with reliable voltage conversion. This single-phase unit addresses the common pain point of bulky, exposed windings and inconsistent performance in harsh environments. Key certifications and standards include UL Listed protection and a NEMA 3R enclosure suitable for indoor-outdoor service, underscoring compliance and durability. The design also supports easy integration with standard 240/480 V inputs and 120/240 V outputs, enabling flexible panel layouts while reducing wiring complexity. For engineering teams, this transformer translates to lower maintenance, improved uptime, and a clearer path to scalable power distribution across industrial automation applications.
Product Information
Extended Description
S20N11E10A Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: none, sv: 120/240v, 115°c, 10 kva, al windings, elec. shield, frame: 179, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11E10A
UPC
786680104688
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
166 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 A
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
179
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
90A
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
10 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: General purpose encapsulated transformer with a 10 kVA rating provides robust power conversion for control panels, delivering stable voltage under load and reducing heat in electrical cabinets, which translates to fewer nuisance trips and longer equipment life. Application: Ideal for machine controllers and automation panels where 60 Hz operation and single-phase supply are standard, supporting reliable operation of relays, drives, and instrumentation.
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FAQs
The S20N11E10A is designed for standard panel mounting with a 90 A wiring connection rating. Use the NEMA 3R enclosure for indoor-outdoor installations, ensure proper clearance for heat dissipation, and follow the manufacturer’s wiring diagram to connect primary and secondary voltages (240/480 V to 120/240 V) safely.
This 10 kVA, single-phase transformer is ideal for control panels, machine tools, conveyors, and process equipment requiring stable 120/240 V outputs from a 240/480 V source. Its encapsulated design supports reliable operation in compact panels and mixed environments.
Confirm 10 kVA VA rating, primary voltage options of 240 V or 480 V, secondary voltage of 120/240 V, 60 Hz operation, and single-phase configuration. Also check enclosure type (NEMA 3R) and aluminum windings with electrostatic shielding for noise suppression and durability.
Yes. The S20N11E10A uses a NEMA 3R enclosure with indoor-outdoor compatibility and Weathershield characteristics, enabling reliable service in exposed locations while maintaining electrical integrity and safety.
It carries UL Listed certification and Eaton’s standard warranty policy (one year from installation or eighteen months from shipment, whichever occurs first). This provides assurance for code compliance and long-term serviceability in mission-critical panels.