Eaton S39N11S05X General-Purpose Transformer - UL Listed
Part Number: S39N11S05X
Quick Summary
The Eaton S39N11S05X general-purpose transformer provides reliable 50/60 Hz step-down power for industrial control panels. Engineers often struggle with enclosure compatibility and heat buildup in damp plant environments, risking downtime. UL Listed safety certification, an indoor-outdoor NEMA 3R enclosure rating, and a 5 kVA rating address these concerns and expand installation options. Aluminum coil construction supports efficient thermal performance, while the compact 178 frame and 524S wiring simplify mounting and field connections. This combination translates to improved uptime, predictable performance, and lower lifecycle costs in power distribution and control applications.
Product Information
Extended Description
S39N11S05X Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 178, 50-60 Hz, single-phase, 400 V, 120/240 V, NONE, 115 °C rise, 5 KVA, indoor-outdoor, 524S
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S39N11S05X
UPC
786680097485
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
130 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
50/60 Hz
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
178
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
524S
Frequency rating
50-60 Hz
Phase
Single-phase
Primary voltage
400 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
5 kVA
Weathershield
Indoor-Outdoor
Feature 5 kVA single-phase transformer with 400 V primary and 120/240 V secondary provides scalable control-panel power. Benefit Enables handling multiple loads from a compact footprint, reducing cabinet size and inventory while maintaining voltage integrity. Application Ideal for industrial automation and control panels that require reliable step-down power without oversized components. Feature 50-60 Hz operation with a 115 °C rise supports dependable operation in standard plant environments. Benefit Maintains performance in typical ambient temperatures, minimizing derating and maintenance needs. Application Power distribution in busy facilities with steady heat dissipation. Feature NEMA 3R enclosure rated for indoor-outdoor service with UL Listed safety. Benefit Improves reliability in exposure to rain, dust, and humidity, lowering service calls. Application Outdoor-installed or damp-location panels for process automation. Feature Aluminum coil construction reduces weight and enhances heat dissipation compared to copper windings. Benefit Facilitates easier handling, faster installation, and lower lifecycle costs. Application Retrofit and new installations in existing control rooms and distributed power networks. Feature 178 frame with 524S wiring simplifies mounting and field connections. Benefit Supports quick integration with common panel layouts and established wiring practices. Application OEMs and integrators seeking predictable install times. Feature 5 kVA rating and UL Listed certification provide compliance confidence for audits and maintenance. Benefit Reduces risk of non-compliance and streamlines procurement with a certified, dependable power source. Application Industrial power distribution and control systems requiring robust safety certification.
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FAQs
Install the unit in a suitable enclosure with a NEMA 3R rating for indoor-outdoor use. Mount the transformer securely in the chassis, connect the 400 V primary via the 524S wiring, and route the 120/240 V secondary to loads. Allow for adequate ventilation and follow torque specs for terminal connections. The 178 frame size facilitates standard panel layouts and simplifies wiring and commissioning.
The transformer is a single-phase 5 kVA device with a 400 V primary and a 120/240 V secondary, operating at 50-60 Hz. It supports balanced and mixed loads within the 5 kVA rating, providing stable voltage to control circuits, sensors, and auxiliary equipment while enabling safe margins for startup transients.
Yes. The S39N11S05X features an indoor-outdoor NEMA 3R enclosure and a weather-tolerant construction suitable for outdoor or damp locations. UL Listed safety certification further reinforces suitability for installations exposed to weather, dust, and humidity without compromising performance.
The transformer carries UL Listed certification for safety. It uses a NEMA 3R enclosure suitable for indoor-outdoor service and is designed for 50/60 Hz operation, making it compatible with typical industrial power systems and compliance workflows in automation environments.
The S39N11S05X offers reliable 50/60 Hz performance, a durable NEMA 3R enclosure, and aluminum windings that dissipate heat efficiently. These factors reduce downtime, improve voltage stability for sensitive equipment, and lower maintenance costs over the life of the installation, delivering a favorable ROI through higher uptime and predictable operation.