Eaton S52N11S51N Encapsulated Transformer - UL Listed
Part Number: S52N11S51N
Quick Summary
The Eaton general purpose encapsulated transformer provides reliable low-voltage power for control panels and equipment in industrial environments. Engineers frequently grapple with safe indoor-outdoor installation, weather exposure, and mismatched primary/secondary voltages. Key certifications include UL Listed safety compliance, and the unit features a rugged NEMA 3R enclosure for indoor-outdoor service. Designed for OEMs, panel builders, and maintenance teams, it delivers dependable operation with a compact footprint and straightforward integration. The 0.5 kVA rating supports 120/240 V secondary needs while maintaining efficiency and ease of procurement for automation projects. This combination helps reduce installed cost and simplifies compliance across electrical panels.
Product Information
Extended Description
S52N11S51N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 57, 60 Hz, single-phase, 460 V, 120/240 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 524J
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S52N11S51N
UPC
786680016042
Product Length/Depth
4.91 in
Product Height
8.97 in
Product Width
4.87 in
Product Weight
15 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
57
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
524J
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
460 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
0.5 kVA
Weathershield
Indoor-Outdoor
Feature: The 0.5 kVA rating supports control circuits and small automation loads without oversizing the plant power. Business Impact: This reduces upfront cost and improves overall energy efficiency for automation projects. Application: Ideal for control panels, relays, and small machinery across industrial environments. Feature: NEMA 3R enclosure with indoor-outdoor capability. Business Impact: Provides rugged protection against weather and contaminants, lowering maintenance cycles and downtime. Application: Outdoor equipment and exposed installations in factories or remote locations. Feature: Aluminum coil and EP design reduce weight while preserving durability. Business Impact: Easier handling during installation and lower shipping costs, improving site readiness. Application: Space-constrained panel builds and portable automation modules. Feature: Wiring connection 524J and compact frame (57). Business Impact: Simplifies field wiring and accelerates panel assembly, reducing installation time. Application: OEM panel integration and retrofit projects with tight spaces. Feature: 60 Hz, single-phase operation with 460 V primary and 120/240 V secondary. Business Impact: Aligns with common industrial power standards, ensuring compatibility and predictable performance. Application: Control circuits in machinery, conveyors, and automation panels. Feature: Weathershield Indoor-Outdoor capability and UL Listing. Business Impact: Demonstrates regulatory compliance and suitability for mixed environments, minimizing qualification effort for procurement. Application: Industrial environments requiring durable power for control systems.
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FAQs
The S52N11S51N uses a 524J wiring connection and is designed for surface mounting with a compact footprint (approximately 4.87 in by 4.91 in by 8.97 in). It is a single-phase device rated at 0.5 kVA with a 460 V primary and 120/240 V secondary, suitable for standard control panels. When wiring, follow the 524J terminal layout and ensure protection and clearance per electrical codes. This supports straightforward retrofit and OEM panel expansions.
Key specs include a 0.5 kVA rating, 60 Hz frequency, single-phase operation, primary voltage of 460 V, and secondary voltage of 120/240 V. The device uses an aluminum coil and delivers a 115 °C rise. These attributes translate to reliable control power for relays and small motors while fitting typical industrial power architectures.
Yes. The transformer features a NEMA 3R enclosure and Weathershield designation indicating indoor-outdoor compatibility. UL Listed certification further supports safe operation in exposed environments, making it appropriate for control panels mounted in or near outdoor equipment and weather-prone locations.
The primary certification is UL Listed, signaling compliance with recognized safety standards for electrical equipment. The enclosure is rated for indoor-outdoor use (NEMA 3R), which complements the UL listing to support safe operation in mixed environments commonly found in industrial automation and power distribution.
At 0.5 kVA, the unit matches typical control-panel requirements without oversizing, reducing material costs and energy waste. The aluminum winding and robust encapsulation lower moisture-related risks and corrosion, potentially extending service life. Its compact size and straightforward wiring accelerate installation, lowering labor costs and downtime during panel upgrades or retrofits.