Eaton S20N11E16X General-Purpose Transformer - UL Listed
Part Number: S20N11E25CU
Quick Summary
The Eaton S20N11E16X General-Purpose Transformer is a compact, rugged power source for control panels and industrial equipment. It delivers clean, isolated low-voltage power from 240/480 V mains to 120/240 V loads, with a 1.5 kVA rating and 50–60 Hz compatibility. In practical terms, engineers face moisture, dust, and space constraints that threaten uptime; this transformer’s encapsulated aluminum-wound design and NEMA 3R enclosure help mitigate those risks. Key certifications and ratings include UL Listed safety approval and NEMA 3R weather resistance, enabling reliable outdoor and indoor service. By combining robust protection with straightforward installation, it supports design for maintainable, compliant, and cost-effective power distribution in the toughest environments.
Product Information
Extended Description
S20N11E25CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 182, 60 Hz, single-phase, 240 V, 480 V, 120/240 V, NONE, 115 °C rise, 25 KVA, indoor-outdoor, 90A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20N11E25CU
UPC
786680051975
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
448 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
182
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
25 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Feature → Business Impact → ApplicationFeature: Aluminum winding with EP encapsulation delivers improved thermal performance and corrosion resistance in rugged environments. Impact: Reduces operating temperature rise and extends service life, lowering maintenance costs. Application: Ideal for outdoor control panels and machinery in factory floors where dust, moisture, and vibration are present.Feature: NEMA 3R enclosure provides indoor-outdoor protection against weather and contaminants. Impact: Enhances reliability in outdoor cabinets and damp environments, reducing failure risk. Application: Suitable for outdoor substations and machine rooms that require durable housing.Feature: 1.5 kVA rating with 50–60 Hz single-phase operation and dual primary/secondary voltages (240/480 V to 120/240 V). Impact: Supports common control-circuit loads with minimal voltage drop and clean power delivery, improving device performance. Application: Powers PLCs, relays, and small motor controls in industrial equipment.Feature: Electrostatically shielded construction improves insulation integrity and reduces EMI concerns. Impact: Simplifies compliance with noise and safety standards while protecting sensitive electronics. Application: Industrial automation cabinets and panel boards in high-EMI environments.Feature: UL Listed certification and 90 A wiring capability with a 115 °C rise rating. Impact: Accelerates approvals and reduces integration risk, while supporting energy-efficient operation. Application: Panel builders and installers seeking proven, code-compliant power transformers for mixed indoor-outdoor facilities.
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FAQs
Yes. The S20N11E16X supports 240 V as a primary input and provides 120/240 V secondary output, making it compatible with many control panels and machines. Its NEMA 3R enclosure and UL Listed certification simplify panel integration and electrical safety compliance during retrofit projects.
Verify a 50–60 Hz frequency rating, a 1.5 kVA VA rating, single-phase construction, and primary voltage options of 240 V or 480 V with secondary 120/240 V. The aluminum-wound, encapsulated design supports consistent output and thermal performance under typical plant loads.
Yes. The S20N11E16X uses a NEMA 3R enclosure suitable for indoor-outdoor service, offering protection against weather, dust, and moisture. This makes it a strong candidate for outdoor control panels and equipment enclosures in industrial facilities.
The transformer is UL Listed, which supports safety compliance for electrical assemblies. Combined with its NEMA 3R enclosure rating, it helps meet standards for indoor-outdoor use, reducing audit and installation risks in regulated facilities.
Expect low maintenance due to encapsulated construction and solid-state insulation, with a long service life under typical industrial conditions. The rugged enclosure and shielded features reduce downtime, contributing to favorable total cost of ownership through fewer replacements and lower labor costs during servicing.