Eaton S48M11S25CULS45 Transformer - UL Listed
Part Number: S48M11S25CULS45
Quick Summary
Eaton General purpose encapsulated transformer provides reliable power isolation and step-down for control panels in industrial settings. This solution helps panel builders overcome space constraints while maintaining performance and safety. UL Listed certification and NEMA 3R enclosure guidance ensure compliance and outdoor capability, while 60 Hz operation supports efficient distribution. With a 25 kVA rating and 480 V primary to 120/240 V secondary, it enables efficient load distribution and streamlined procurement. For manufacturers, this translates to reduced maintenance, predictable performance, and simpler spare-part planning across plants.
Product Information
Extended Description
S48M11S25CULS45 Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 300A, 60 Hz, low sound 45 dB, single-phase, 480 V, 120/240 V, 2 at +2.5% FCAN, 4 at -2.5% FCBN, 115 °C rise, 25 KVA, indoor-outdoor, 40A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48M11S25CULS45
UPC
786680046766
Product Length/Depth
14.06 in
Product Height
28.24 in
Product Width
22.42 in
Product Weight
873 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
Low sound equal to 45 dB
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
300A
Tap size
2 at +2.5% FCAN, 4 at -2.5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
40A
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
Modification 1
Low sound 45 dB
Weathershield
Indoor-Outdoor
This transformer delivers 25 kVA with a 480 V primary and 120/240 V secondary, enabling compact, safer power distribution in control cabinets. Business impact includes reduced panel density, improved heat management, and easier component standardization across multiple machines. It is ideal for control panels and machine tools where space is at a premium and reliability is non-negotiable. The unit uses copper windings in an encapsulated epoxy design, which enhances durability and thermal performance, reducing winding resistance and extending service life in demanding environments. The NEMA 3R enclosure supports indoor-outdoor installation, delivering weather resistance and lower maintenance costs, while maintaining a quiet operation at 45 dB to minimize acoustic disruption in busy plant floors. A voltage-tap system of 2 at +2.5% FCAN and 4 at -2.5% FCBN provides precise regulation under fluctuating loads, stabilizing downstream equipment. The 115 °C insulation rise indicates robust thermal margins, enabling steady performance during peak demand periods. Weighing 873 lb, the unit is designed for permanent installation with proper mounting provisions and recommended rigging considerations, aligning with standard industrial practices for panel-mounted transformers. This Eaton solution integrates with common electrical profiles, supporting 60 Hz single-phase distribution and enabling straightforward procurement by engineers and procurement teams, while meeting UL Listed and NEMA 3R requirements for safer, compliant installations.
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FAQs
Yes. This model is a single-phase transformer with a 480 V primary and 120/240 V secondary, rated at 25 kVA, operating at 60 Hz. It uses copper windings and provides adjustable taps (2 at +2.5% FCAN and 4 at -2.5% FCBN) to help maintain voltage under load.
The S48M11S25CULS45 uses a NEMA 3R enclosure suitable for indoor-outdoor service and is UL Listed, meeting common safety and reliability standards for industrial environments. It also features a low sound level of 45 dB, which helps minimize noise in populated plant areas.
With a weight of 873 lb and dimensions around 14.06 in (L), 28.24 in (H), and 22.42 in (W), installation requires appropriate rigging, mounting hardware, and space planning. Ensure the site accommodates its footprint and weight, and provide suitable ventilation and clearance for service access and cooling.
This unit is UL Listed and features a NEMA 3R enclosure for robust protection in indoor-outdoor settings. It carries Eaton’s warranty policy of one year from installation or eighteen months from shipment, whichever occurs first, aligning with typical industry expectations for critical power components.
The product is supported by Eaton catalogs and datasheets, including the Specification Sheet for S48M11S25CULS45 and the Commercial Distribution Transformer catalog. These documents provide complete electrical ratings, installation instructions, and compliance notes to assist with design, procurement, and field commissioning.