Eaton S20N08A03CE General-Purpose Transformer - UL Listed
Part Number: S20N08A03CE
Quick Summary
The Eaton S20N08A03CE general purpose encapsulated transformer is designed to reliably convert voltage for control panels and industrial equipment. Engineers often wrestle with compact hardware that won’t fit in tight spaces or stand up to harsh environments, and this unit addresses size, enclosure, and weather resistance. UL Listed, CE Marked, and a rugged NEMA 3R enclosure provide essential compliance and protection for indoor-outdoor applications. By pairing a 3 kVA rating with a 240/480 V primary and 24/48 V secondary, it delivers dependable power with a smaller footprint, simpler wiring, and faster installation for modern automation systems and OEM equipment.
Product Information
Extended Description
S20N08A03CE Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 176, 60 Hz, single-phase, 240 V, 480 V, 24/48 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 509C
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N08A03CE
UPC
786680034879
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
72 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
CE Marked
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
176
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
509C
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240 V, 480 V
Secondary Voltage
24/48 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: The 3 kVA, 60 Hz, single-phase rating supports mid-range loads in industrial control and automation, enabling voltage conversion without multiple smaller units and freeing valuable panel space. Application: control panels, PLCs, drives, sensors, and instrument power supplies in packaged equipment. Feature → Business Impact → Application: Aluminum coil with EP encapsulation improves thermal performance and corrosion resistance, reducing maintenance costs and extending service life in damp or dusty environments. Application: harsh factory floors and outdoor installations. Feature → Business Impact → Application: NEMA 3R enclosure provides weatherproofing and safety, minimizing enclosure-related failures and simplifying outdoor installations. Application: outdoor controllers, switchgear, and weather-exposed panels. Feature → Business Impact → Application: Flexible input/output—240/480 V primary and 24/48 V secondary—reduces wiring complexity and supports quick substitutions in legacy systems. Application: control cabinets, motor control centers, and OEM equipment. Feature → Business Impact → Application: 509C wiring connection and compact frame 176 enable straightforward field wiring in tight spaces, speeding commissioning and improving reliability. Application: retrofit projects, modular cabinets, and equipment upgrades. Feature → Business Impact → Application: compact dimensions (8 in L × 14.25 in H × 7.69 in W) and 72 lb weight support predictable footprint and install ease in constrained layouts. Application: panel builds and machine enclosures. Feature → Business Impact → Application: UL Listed and CE Marked certifications ensure compliance with global safety standards, reducing procurement risk and speeding audits. Application: any industry requiring certified general-purpose encapsulated transformers.
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FAQs
The S20N08A03CE is designed for NEMA 3R indoor-outdoor use, enabling outdoor mounting in weather-protected enclosures. Its compact footprint (8 in L × 14.25 in H × 7.69 in W) and 72 lb weight support straightforward panel integration and stable mounting in standard electrical cabinets or weatherproof housings.
Primary voltage is 240 V or 480 V with a secondary of 24/48 V, at 60 Hz in a single-phase configuration. The 3 kVA rating suits mid-range control loads, making it a solid fit for PLCs, drives, sensors, and instrument power in compact panels and OEM equipment.
Yes, the transformer is UL Listed and CE Marked, confirming compliance with safety and performance standards. It also features a NEMA 3R enclosure rating, enabling reliable indoor-outdoor operation in diverse environments and aiding regulatory audits and supplier qualifications.
A 3 kVA rating supports moderate loads with efficient voltage transformation, keeping heat rise within expected ranges (115°C rise) for continuous operation. This balance minimizes oversized cooling and reduces overall energy costs while maintaining reliable performance in standard automation applications.
509C wiring compatibility simplifies terminal connections within the enclosure, enabling reliable field wiring. For indoor-outdoor use, ensure proper weatherproofing, correct terminations, and adequate clearance for cooling to maintain performance and prevent thermal bottlenecks in outdoor or semi-protected installations.