Eaton S12N12E03N General-Purpose Transformer - UL Listed
Part Number: S12N12E03N
Quick Summary
Eaton S12N12E03N transformer delivers reliable 3 kVA isolation for control panels and small industrial power circuits. Many facilities struggle with rugged environments, space constraints, and compliance demands that drive downtime and cost. UL Listed, NEMA 3R enclosure, and 60 Hz rating provide rugged, weather-ready performance for indoor-outdoor installations. Its compact footprint and standard 120 V primary/secondary simplify installation and procurement, reducing wiring error and project cost while supporting compliant, efficient power distribution for automation equipment and process control.
Product Information
Extended Description
S12N12E03N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 176, 60 Hz, single-phase, 120 V, 120 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 77A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S12N12E03N
UPC
786680108006
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
60 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 N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
176
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
77A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
120 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S12N12E03N
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: General-purpose encapsulated transformer with aluminum coil and EP design in a NEMA 3R enclosure. Business Impact: Offers rugged protection against moisture, dust, and incidental exposure, reducing maintenance cycles and downtime. Application: Ideal for control panels and outdoor equipment in harsh industrial environments. Feature: 3 kVA, 60 Hz, single-phase configuration. Business Impact: Handles typical automation loads with consistent voltage conversion, improving system reliability and reducing transformer substitutions. Application: Suitable for machine control circuits, lighting, and small drives in manufacturing lines. Feature: 120 V primary and 120 V secondary. Business Impact: Standard voltage footprint simplifies wiring and compatibility with common plant power distribution, lowering installation time. Application: Plug-and-play integration in existing 120 V power ecosystems. Feature: Electrostatically shielded construction. Business Impact: Reduces EMI impacts on nearby controllers and sensors, safeguarding control performance. Application: Sensitive automation networks and PLC I/O installations. Feature: Indoor-outdoor usability with NEMA 3R enclosure. Business Impact: Enables outdoor installations and weather resistance without additional enclosures, reducing equipment footprint. Application: Outdoor power distribution for process equipment and modular automation setups. Feature: UL Listed and documented warranty. Business Impact: Compliance support and peace of mind with a defined service policy, minimizing risk and maintenance surprises. Application: Regulated facilities and mission-critical automation environments.
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FAQs
The S12N12E03N is a UL Listed, single-phase 3 kVA transformer with 120 V primary and secondary, designed for indoor-outdoor use in control panels and automation equipment. It supports standard 120 V control circuits, simplifies wiring, and fits compact panel footprints while meeting automotive and industrial electrical codes.
Its NEMA 3R enclosure provides corrosion and weather resistance for outdoor installations. When mounting outside, ensure proper clearance for heat dissipation, secure mounting platforms, and adherence to local weatherproofing guidelines. The enclosure supports outdoor exposure without additional housings, reducing overall installation complexity.
UL Listed certification confirms adherence to recognized safety standards, easing regulatory compliance and supplier audits. For maintenance, it reduces the need for extensive redesigns during inspections and supports warranty eligibility by meeting established safety criteria for electrical equipment in industrial environments.
Yes. The S12N12E03N is a 3 kVA, 60 Hz, single-phase transformer with a 120 V primary and secondary, designed to reliably power control panels, automation devices, and small machines. It maintains voltage stability under standard load conditions, helping prevent equipment drift and downtime.
The product carries Eaton’s warranty policy 25-000, offering one year from installation or 18 months from shipment, whichever occurs first. This provides coverage for manufacturing defects and performance issues, supporting long-term maintenance planning and total cost of ownership considerations.