Eaton S20L11E25SS Transformer - UL Listed
Part Number: S20L11E25SS
Quick Summary
The Eaton S20L11E25SS transformer provides reliable voltage conversion for control panels and industrial equipment. Many facilities struggle with bulky enclosures and inconsistent safety ratings in outdoor or mixed environments. This UL Listed device features a NEMA 3R rated enclosure for indoor-outdoor use, plus an electrostatic shield and Grade 304 stainless steel enclosure notes for enhanced corrosion resistance. Designed for 25 kVA, single-phase loads, it delivers solid business value through compact footprint, robust construction, and flexible primary voltages, making it a sensible choice for modern automation and electrical distribution projects.
Product Information
Extended Description
S20L11E25SS Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 240 x 480v, taps: 2 at -5% fcbn x 4 at -2.5% fcbn, sv: 120/240v, 115°c, 25 kva, al windings, elec. shield, frame: 182, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S20L11E25SS
UPC
786680046735
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
380 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
Grade 304 stainless steel enclosure
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
182
Tap size
2 at -5% FCBN x 4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
526A
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 → Application: General-purpose encapsulated construction with aluminum windings and electrostatic shield reduces EMI and improves reliability in harsh environments, enabling longer service intervals and lower maintenance costs for control cabinets and machine rooms. This supports safer installations in facilities with limited space, such as compact electrical rooms and distributed automation panels. Feature → 25 kVA, single-phase design with 240/480 V primary and 120/240 V secondary provides versatile power isolation for machine tools, conveyors, and panel boards, improving load handling and fault tolerance in industrial settings. Application clarity: The NEMA 3R indoor-outdoor enclosure, Grade 304 stainless steel notes, and UL Listed certification give engineers confidence during design reviews and regulatory audits, while the 182 frame and 14.12 in x 23.31 in x 16.35 in footprint enable straightforward mounting alongside existing electrical infrastructure. This transformer also supports taps at -5% and -2.5% for voltage adjustment, reducing application mismatch and the need for additional components.
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FAQs
The S20L11E25SS is designed for indoor-outdoor use with a NEMA 3R enclosure and Grade 304 stainless steel enclosure notes, making it compatible with control panels, distribution cabinets, and machine rooms exposed to varying environmental conditions. Its UL Listed certification and 182 frame provide confidence for panel builders and facility engineers during integration.
This transformer delivers 25 kVA at 60 Hz, is single-phase, and features primary voltages of 240 V and 480 V with secondary outputs of 120/240 V. It includes voltage taps of -5% and -2.5% FCBN for voltage adjustment, and utilizes aluminum windings with an electrostatic shield to improve EMI performance and reliability.
The unit is UL Listed and housed in a NEMA 3R enclosure, designed for indoor-outdoor service. It carries a Grade 304 stainless steel enclosure note, reflecting corrosion resistance in challenging environments and contributing to long-term reliability in industrial applications.
Plan for standard transformer maintenance including insulation checks, thermal performance monitoring, and periodic winding/connection inspections. The product ships with a one-year warranty from installation or eighteen months from shipment, whichever occurs first. The aluminum windings and electrostatic shield support durability, while the compact frame size eases mounting and service accessibility.
Benefits include reduced downtime due to reliable voltage conversion, EMI mitigation from electrostatic shielding, and a robust indoor-outdoor enclosure facilitating longer service intervals. The 25 kVA rating supports a broad range of control load profiles, while the UL Listed certification simplifies regulatory compliance and speeds up project approvals.