Eaton S48M11S25N Transformer - 25 kVA UL Listed
Part Number: S48M11S25N
Quick Summary
Eaton general-purpose encapsulated transformer delivers reliable power for industrial equipment. Outdoor exposure, voltage drift, and maintenance logistics challenge safe, efficient operation. UL Listed, NEMA 3R enclosure for indoor-outdoor installations, and aluminum winding for durability. This 25 kVA unit supports 480 V primary and 120/240 V secondary, providing clean, flexible power for diverse loads. With 60 Hz single-phase operation and a 115°C rise, it withstands demanding environments while maintaining voltage integrity. Tap adjustments at +2.5% FCAN and -2.5% FCBN help compensate for line fluctuations, reducing equipment stress. Its rugged enclosure, warranty coverage, and clear installation footprint translate into lower downtime and predictable procurement, while enabling scalable distribution for evolving industrial applications.
Product Information
Extended Description
S48M11S25N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 132, 60 Hz, single-phase, 480 V, 120/240 V, 2 at +2.5% FCAN, 4 at -2.5% FCBN, 115 °C rise, 25 KVA, indoor-outdoor, 83A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48M11S25N
UPC
786680120268
Product Length/Depth
13.59 in
Product Height
20.67 in
Product Width
19.02 in
Product Weight
410 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 N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
132
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
83A
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 → Business Impact → Application: encapsulated EP design provides robust protection in indoor-outdoor spaces, reducing enclosure corrosion and maintenance intervals while improving reliability in harsh environments. Aluminum coil windings offer lighter mass and excellent heat dissipation, contributing to longer transformer life and lower operating costs in continuous duty applications such as motor control centers and processing lines. NEMA 3R enclosure supports flexible installation options—from sheltered indoor rooms to outdoors—minimizing firewall or weather-related installation constraints. A 25 kVA rating paired with a 480 V primary and 120/240 V secondary enables scalable distribution for mid-size plant networks, reducing the need for multiple smaller units and simplifying spare parts management. Tap changer options (+2.5% FCAN, -2.5% FCBN) help maintain voltage accuracy across fluctuating supply conditions, minimizing equipment stress and nuisance tripping. The unit’s 60 Hz, single-phase design aligns with common facility power structures, easing integration with existing panels and busways. With a weight of 410 lb and compact 19.02 in width, 20.67 in height, and 13.59 in depth, installation engineers can plan mounting, clearances, and crane requirements with confidence. UL Listed certification provides regulatory assurance and supplier reliability, while a one-year warranty from installation (or 18 months from shipment) supports maintenance budgeting and lifecycle planning.
Get a Quick Quote for a Eaton S48M11S25N
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton S48M11S25N?
Enquire Now
FAQs
Plan for a 410 lb unit with dimensions of 19.02 in W x 20.67 in H x 13.59 in D. Ensure adequate mounting, clearance for cooling, and access for taps. Use the NEMA 3R enclosure as designed for indoor-outdoor environments, and account for indoor lift equipment or a small crane during placement. Verify alignment with 480 V service and 60 Hz panels.
The transformer delivers 25 kVA with a 480 V primary and 120/240 V secondary at 60 Hz, single-phase. It includes taps at +2.5% FCAN and -2.5% FCBN to compensate line voltage fluctuations, improving voltage regulation and protecting connected equipment from under- or over-voltage conditions. Its 115 °C rise rating supports operation in warm environments with adequate cooling.
Yes. It features a NEMA 3R enclosure and Weathershield suitable for indoor-outdoor use, plus UL Listed certification for safety and reliability. Aluminum coil windings enhance heat dissipation, supporting stable performance in exposed locations. This makes it well-suited for plants with outdoor equipment pads, exterior panels, or transfer lines where weatherproof protection is essential.
The S48M11S25N carries UL Listed certification, a key safety and compliance credential in North America. The NEMA 3R enclosure supports weather-resistant, durable installations in mixed environments. These certifications simplify procurement for regulated facilities, support maintenance planning, and help meet local electrical codes during inspections and audits.
With a rugged encapsulated design and aluminum windings, the transformer offers low routine maintenance, reducing downtime risks. The 25 kVA rating enables consolidation of power distribution and fewer spare units, lowering lifecycle costs. A one-year warranty from installation (or 18 months from shipment) provides budgeting certainty and a baseline for service planning.