Eaton S20L11E25A General-Purpose Transformer - UL Listed
Part Number: S20L11E25A
Quick Summary
Eaton S20L11E25A Transformer provides reliable general-purpose power transformation for industrial control panels and facilities. Engineers and buyers often face downtime and installation challenges in harsh environments; this encapsulated design minimizes moisture, dust, and field wiring complexity. UL Listed safety certification, a rugged NEMA 3R enclosure, and electrostatic shielding support compliance and EMI/EMC performance. With a 25 kVA rating and a single-phase 240/480 V primary to 120/240 V secondary, it delivers efficient, scalable power for panel boards and substations, while the indoor-outdoor Weathershield extends service life and flexibility. Its high-temperature rating of 115°C rise and aluminum windings support durable operation in challenging plants.
Product Information
Extended Description
S20L11E25A 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
S20L11E25A
UPC
786680104725
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
Model A
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
Encapsulated EP design provides rugged insulation and environmental protection, shielding windings from moisture, dust, and contaminants. This reduces maintenance costs and unplanned downtime in harsh plant conditions while improving long-term reliability. The unit supports single-phase power delivery in machine controls and distribution panels, delivering stable voltage to sensitive drives and electronics. With a 25 kVA rating and primary voltages of 240 V and 480 V, and a secondary of 120/240 V, it offers scalable power for panel boards and equipment racks. This versatility supports incremental capacity during plant expansion without wholesale transformer replacements, lowering total cost of ownership. Voltage taps include two at -5% and four at -2.5%, enabling precise regulation to compensate for supply variations and line drops, reducing nuisance trips and protecting motors and drives. The aluminum windings keep weight manageable for installation teams and reduce thermal stresses during startup. An electrostatic shield enhances EMI/EMC performance, UL Listed safety, and a rugged NEMA 3R indoor-outdoor enclosure further simplify compliance and siting in mixed indoor/outdoor spaces. The combination of EP encapsulation, frame 182, wiring connection 526A, and 115°C rise rating reflects a design tuned for reliability in real-world installations.
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FAQs
Designed for compact installations, the S20L11E25A fits standard control panels with dimensions of 14.12 in depth, 16.35 in width, and 23.31 in height. The 182 frame and 526A wiring connection simplify mounting and terminations. Encapsulated EP construction with a NEMA 3R enclosure enables reliable indoor-outdoor operation in space-limited environments while sustaining EMI protection and long service life.
The transformer provides primary voltages of 240 V and 480 V and a secondary of 120/240 V. It includes taps: two at -5% and four at -2.5% FCBN, enabling precise voltage regulation to match site supply and load requirements, reducing nuisance trips and improving regulation in variable power conditions.
Yes. It uses a rugged indoor-outdoor NEMA 3R enclosure and Weathershield construction to tolerate moisture, dust, and temperature swings. An electrostatic shield helps minimize EMI, protecting nearby drives and controls and supporting EMI/EMC compliance in industrial environments.
Key certifications include UL Listed safety approval. The enclosure supports indoor-outdoor use, backed by an 115°C rise rating, 60 Hz single-phase operation, aluminum windings, and a robust EP encapsulation. These features collectively help meet typical control-room and outdoor-installation standards while delivering reliable performance.
Encapsulated design and aluminum windings reduce moisture-related issues and maintenance, enabling longer service intervals and fewer unplanned outages. The 25 kVA rating suits growing power needs, while UL listing and a 1 year warranty (or 18 months from shipment) mitigate risk and support faster ROI for critical plant power supplies.