Eaton S20N11S03N General-Purpose Transformer - UL Listed
Part Number: S20N11S03N
Quick Summary
The Eaton S20N11S03N general-purpose encapsulated transformer is designed to supply clean, isolated power for control panels, motor starters, and industrial equipment. It delivers a robust 3 kVA rating with primary configurations of 240 and 480 V and a secondary of 120/240 V, making it versatile for mixed-voltage environments. In real-world installations, space constraints, weather exposure, and regulatory compliance are common challenges; this unit's compact frame and rugged construction help address them. With UL Listed certification and a weatherproof, indoor-outdoor enclosure (NEMA 3R), it meets safety and performance expectations across commercial and industrial settings. The product integrates readily with standard electrical cabinets, supports easy mounting, and aligns with Eaton's warranty and service standards, ensuring predictable lifecycle costs.
Product Information
Extended Description
S20N11S03N Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: none, sv: 120/240v, 115°c, 3 kva, al windings, frame: 176, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11S03N
UPC
786680102967
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
64 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
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
3 kVA
Weathershield
Indoor-Outdoor
Feature: 3 kVA single-phase encapsulated transformer with aluminum windings and a rugged NEMA 3R enclosure. Business Impact: provides reliable, low-maintenance power with environmental protection for indoor-outdoor installations, reducing downtime and spare parts. Application: ideal for control panels, machine enclosures, and outdoor-rated distribution cabinets in harsh plant environments. Feature: dual primary voltages 240/480 V and secondary 120/240 V with 60 Hz operation. Business Impact: simplifies integration in mixed-volt systems and reduces field rewiring, enabling faster cabinet upgrades. Application: distribution panels, machine centers, and automation cabinets in mixed-voltage facilities. Feature: aluminum windings and encapsulated design for thermal management and durability. Business Impact: lowers thermal rise, extends service life, and minimizes moisture ingress in challenging environments. Application: process lines, packaging machinery, and outdoor equipment housings. Feature: indoor-outdoor compatibility with Weathershield and UL Listed protection. Business Impact: reduces need for additional enclosures and ensures regulatory compliance for outdoor installations. Application: outdoor-rated control trunks and weather-exposed electrical rooms. Feature: compact frame and detailed mechanical data including frame 176, weight 64 lb. Business Impact: eases handling, installation, and mounting in tight spaces without compromising strength. Application: panel mounting in compact electrical rooms and modular cabinets.
Get a Quick Quote for a Eaton S20N11S03N
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton S20N11S03N?
Enquire Now
FAQs
For panel installation prioritize a stable, level surface and space for heat dissipation. The unit features a compact frame and a 64 lb weight, enabling straightforward mounting in standard electrical cabinets. Use the 3A wiring connection as specified and ensure the enclosure is properly sealed to maintain its indoor-outdoor NEMA 3R protection. Allow clearance for service access and wiring termination.
The transformer is a single-phase 3 kVA unit with dual primary voltages of 240 V and 480 V and a secondary of 120/240 V. It operates at 60 Hz and uses aluminum windings. The wiring connection is 3A, and the enclosure is rated for indoor-outdoor use under a NEMA 3R specification, supporting reliable performance in varied environments.
Yes, it is designed for indoor-outdoor service with a NEMA 3R enclosure and Weathershield capable construction. UL Listed certification adds safety assurance, and the encapsulated design protects windings from moisture and dust, making it suitable for outdoor-rated control cabinets and weather-exposed equipment housings.
The transformer carries UL Listed certification, indicating compliance with electrical safety standards. It ships with a warranty of one year from the date of installation or eighteen months from the date of shipment, whichever occurs first, providing protection against manufacturing defects and coverage for early-life performance.
With a 3 kVA rating and encapsulated aluminum windings, the S20N11S03N delivers reliable power with minimal maintenance, reducing downtime and parts replacement. The UL Listed, NEMA 3R design supports longer service intervals in harsh environments, contributing to lower lifecycle costs and improved total cost of ownership in automation or distribution applications.