Eaton S48N29S03CU General-Purpose Transformer - UL Listed
Part Number: S48N29S03CU
Quick Summary
Eaton S48N29S03CU General-Purpose Transformer is designed to reliably convert 480 V down to 208 V for control panels and industrial equipment, supporting steady operation in demanding applications. Engineers often struggle with inconsistent secondary voltage, heat buildup, and installation complexity when sourcing encapsulated transformers for rugged environments. This unit features UL Listing and a NEMA 3R enclosure for durable, code-compliant performance in both indoor and outdoor installations, along with copper windings and a 115 °C rise for efficient, long-term reliability. With a 3 kVA rating and 60 Hz operation, it delivers scalable power to systems ranging from automation panels to motor drives, reducing panel space, installation time, and total cost of ownership.
Product Information
Extended Description
S48N29S03CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 176, 60 Hz, single-phase, 480 V, 208 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 536B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48N29S03CU
UPC
786685267210
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
75 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
Coil material
Copper
Design
EP
Enclosure
NEMA 3R
Frame
176
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
536B
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
208 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: General-Purpose encapsulated EP design provides robust protection against dust, moisture, and mechanical damage, extending service life in harsh environments used in control panels and machine rooms. This translates to fewer field failures and lower maintenance costs, enabling reliable power for automation and distribution blocks. Feature → Business Impact → Application: Copper windings reduce resistance, improving voltage regulation and thermal performance under load, which enhances PLC inputs, sensors, and drive circuits, boosting system accuracy and efficiency in automated lines. Feature → Business Impact → Application: NEMA 3R enclosure and indoor-outdoor capability offer weather-resistant installation options for outdoor electrical rooms and exterior equipment pads, ensuring compliance and uptime in mixed environments. Feature → Business Impact → Application: 3 kVA rating paired with 480 V to 208 V secondary supports scalable power for multiple control devices without oversizing, lowering upfront capital and ongoing energy waste in panels. Feature → Business Impact → Application: 536B wiring and absence of tap changer simplify wiring schemes, speeding installation and reducing the risk of mis-wiring in high-mix panel builds. Feature → Business Impact → Application: UL Listed protection and compact footprint help with regulatory compliance and space-constrained installations, improving overall project timelines and return on investment.
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FAQs
When installing the S48N29S03CU, plan for its 14.25 in height, 7.69 in width, and 8 in depth to fit the enclosure space and mounting provisions. Its 536B wiring and lack of tap changer simplify wiring diagrams, reducing installation time. Mount in a location that complies with NEMA 3R ratings and ensure adequate clearance for heat dissipation and service access.
This unit delivers 3 kVA at 60 Hz, single-phase, with a primary voltage of 480 V and a secondary of 208 V. Copper windings improve thermal performance and regulation under load, making it suitable for control panels, PLCs, and small motor drives that require stable 208 V secondary power from a 480 V source.
Yes. The transformer is designed with a NEMA 3R enclosure suitable for indoor-outdoor installations and is rated for indoor-outdoor service. Its UL Listed certification adds compliance confidence for codes and standards in mixed environments, while the EP encapsulated design provides robust protection against contaminants.
Rely on UL Listed certification for safety compliance and the NEMA 3R enclosure rating for environmental protection. The copper windings and 115 °C rise support reliability under load, while 60 Hz single-phase operation aligns with standard industrial power systems.
The S48N29S03CU offers low maintenance due to its encapsulated EP construction and simple wiring (536B) without taps, reducing field service complexity. Its durable enclosure, copper windings, and 3 kVA rating provide reliable service with fewer failures and streamlined installation, contributing to lower total cost of ownership in control panels and automation assemblies.