Eaton S48G11S25SS EP encapsulated transformer - UL Listed
Part Number: S48G11S25SS
Quick Summary
Eaton S48G11S25SS EP encapsulated transformer is designed to reliably step down from 480 V to 120/240 V for industrial control panels and outdoor equipment. Too often, engineers face voltage drift, harsh environments, and installation challenges that drive downtime, field service costs, and unpredictable equipment performance. UL Listed safety certification guides procurement, while the rugged NEMA 3R indoor-outdoor enclosure and Grade 304 stainless steel construction provide corrosion resistance and long service life. With a 25 kVA rating and single-phase operation, it supports scalable power distribution in automation cells, OEM machinery, and facility infrastructure—delivering reliable performance and measurable maintenance savings.
Product Information
Extended Description
S48G11S25SS Eaton: Eaton, general purpose encapsulated transformer, ep, single-phase, pv: 480v, taps: 2 at -5% fcbn, sv: 120/240v, 115°c, 25 kva, al windings, frame: 182, indoor-outdoor.
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48G11S25SS
UPC
786680025235
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
324 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
Type
General-Purpose Encapsulated Transformer
Wiring connection
2D
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
25 kVA
Weathershield
Indoor-Outdoor
Feature: EP encapsulated construction with aluminum windings provides enhanced insulation and a compact footprint. Business Impact: Reduces leakage risk, simplifies installation, and lowers maintenance costs in harsh environments. Application: Ideal for indoor-outdoor control panels and equipment rooms where space is limited. Feature: 480 V primary with 120/240 V secondary and 60 Hz single-phase operation. Business Impact: Aligns with standard industrial power architecture, reducing wiring complexity and improving overall efficiency. Application: Machine controls, MCCs, and building automation systems. Feature: Tap size of 2 at -5% FCBN. Business Impact: Enables voltage adjustment to compensate for line drops and load changes, minimizing voltage-related equipment wear and undervoltage incidents. Application: Conveyor lines and outdoor pump stations. Feature: NEMA 3R enclosure with Grade 304 stainless steel notes. Business Impact: Delivers reliable weather and corrosion resistance, extending service life in washdown and outdoor environments. Application: Outdoor substations, open-area electrical cabinets. Feature: 25 kVA rating. Business Impact: Supports larger load profiles, reducing the need for multiple transformers and simplifying distribution design. Application: Powering multiple PLCs, VFDs, and associated automation loads. These design choices reflect real-world industry needs, including compatibility with standard panels, ease of retrofit, and a clear path to improved uptime and lower lifecycle costs.
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FAQs
Begin with a suitable enclosure rated for the environment, then mount the transformer securely inside the NEMA 3R rated housing. Connect the 480 V supply to the primary terminals and the 120/240 V loads to the secondary, ensuring proper grounding. If voltage compensation is needed, utilize the two -5% taps (FCBN). Verify conduit and wiring per NEC and Eaton installation notes before commissioning.
Key specs include 25 kVA VA rating, 480 V primary, 120/240 V secondary, 60 Hz frequency, and single-phase design. Check the -5% voltage taps, aluminum coil material, and the EP encapsulated construction. Also confirm UL Listed certification, NEMA 3R enclosure, and the 25-000 warranty terms for installation planning and compliance.
Yes. The S48G11S25SS is designed for indoor-outdoor use with a NEMA 3R enclosure and a Grade 304 stainless steel enclosure note, providing corrosion resistance and protection against environmental contaminants. Ensure proper enclosure sealing and climate considerations, especially in highly humid or wash-down areas, to maximize service life.
The transformer carries UL Listed certification, a key safety and compliance marker that supports procurement and installation approvals. Combined with its rugged enclosure construction and indoor-outdoor suitability, this certification helps streamline vendor qualification, reduce risk during audits, and ensure safe operation across industrial applications.
The S48G11S25SS offers high reliability with a robust encapsulated design, reducing leakage risks and maintenance needs. Its 25 kVA capacity supports multiple loads from PLCs to VFDs, improving system uptime. While initial cost is balanced by a long service life and minimal routine maintenance, the UL Listed certification and corrosion-resistant enclosure help lower lifecycle downtime and repair expenses.