Eaton S48N11S81 Encapsulated Transformer - UL Listed
Part Number: S48N11S81
Quick Summary
Eaton general purpose encapsulated transformer delivers compact, reliable power isolation for control panels and industrial equipment across manufacturing lines and automation installations. Engineers often wrestle with space constraints, harsh environments, and the ongoing need to maintain regulatory compliance as systems scale. UL Listed certification and a NEMA 3R enclosure provide proven safety and weather resistance, while the aluminum windings and 60 Hz operation support long service life in challenging settings. With a 0.05 kVA rating and a 480 V primary to 120/240 V secondary, this unit enables flexible, cost-effective power distribution for new builds and retrofits in modern industrial automation.
Product Information
Extended Description
S48N11S81 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 52, 60 Hz, single-phase, 480 V, 120/240 V, NONE, 115 °C rise, 0.05 KVA, indoor-outdoor, 524H
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S48N11S81
UPC
786680050756
Product Length/Depth
4 in
Product Height
8.91 in
Product Width
4.11 in
Product Weight
7.2 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
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
52
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
524H
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
480 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
0.05 kVA
Weathershield
Indoor-Outdoor
The encapsulated design, aluminum coil, and EP construction deliver rugged reliability and moisture resistance, reducing field fault risk and maintenance costs in harsh production environments. The business impact is longer transformer life and fewer service calls across conveyors, presses, and automation panels, enabling faster project timelines and more predictable commissioning. This compact form factor supports installation in crowded control panels and tight enclosures, streamlining cabinet design and reducing overall footprint for new equipment builds. UL Listed certification coupled with a NEMA 3R enclosure enables safe indoor-outdoor operation, simplifying compliance and expanding placement options in factories, warehouses, and outdoor-ready installations. The 60 Hz, single-phase operation with a 480 V primary and 120/240 V secondary provides reliable power conditioning for PLCs, relays, and sensor networks, improving control stability and reducing nuisance trips. Weighing about 7.2 lb with dimensions around 4 in by 4 in by 8.91 in, wiring is straightforward using the 524H connection, accelerating retrofits and modular panel upgrades. The 0.05 kVA rating offers just enough headroom for low-power control circuits, while the 115 °C rise rating supports robust performance during peak loads typical in automated cycles. In practice, this transformer delivers a balance of durability, ease of installation, and predictable performance for industrial automation projects.
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FAQs
The S48N11S81 combines a compact encapsulated design with a 0.05 kVA rating, 480 V primary, and 120/240 V secondary, making it ideal for tight panel spaces while delivering clean, isolated power to PLCs, relays, and sensors. Its UL Listed status and NEMA 3R enclosure reduce compliance risk and enable reliable operation in varied environments.
Key specs include 480 V primary, 120/240 V secondary, single-phase operation, 60 Hz frequency, aluminum coil, and a 0.05 kVA rating. It is designed for indoor-outdoor use with a NEMA 3R enclosure, and wiring is coded as 524H for straightforward installation.
Yes. The unit features a NEMA 3R enclosure and UL Listed safety certification, providing protection against weather and dust while ensuring electrical safety in both indoor and outdoor settings such as factory exteriors, loading docks, and covered outdoor panels.
Ideal for control panels, machine cabinets, automation racks, and low-power distribution in conveyor lines and process equipment, where reliable isolation and compact form factor are critical for efficient electrical distribution and easy retrofit projects.
The rugged encapsulated design with aluminum windings minimizes maintenance needs and reduces field faults, translating to lower downtime and longer service life. Its compact footprint simplifies installation, potentially lowering labor costs and speeding up deployment in automation upgrades.