Eaton S38N11S51N General-Purpose Transformer - UL Listed
Part Number: S38N11S51N
Quick Summary
The Eaton S38N11S51N is a general-purpose encapsulated transformer designed for rugged control panels and industrial power distribution. Operators face space constraints, moisture exposure, and tricky field wiring in busy facilities. This unit is UL Listed and housed in a NEMA 3R enclosure for indoor-outdoor deployment. Its encapsulated design reduces maintenance while enabling reliable, cost-efficient power conversion in modern automation environments. With a 0.5 kVA rating and 380 V primary, it supports a wide range of control circuits. The secondary provides 120/240 V for versatile downstream equipment, improving panel densities and reducing wiring complexity. Designed for indoor-outdoor use with a durable NEMA 3R enclosure, it withstands harsher environments. Warranty terms and UL Listing add regulatory confidence, while the compact footprint saves cabinet space.
Product Information
Extended Description
S38N11S51N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 57, 60 Hz, single-phase, 380 V, 120/240 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 524O
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S38N11S51N
UPC
786680016035
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
524O
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
380 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
0.5 kVA
Weathershield
Indoor-Outdoor
Feature: Epoxy encapsulation with aluminum winding delivers ruggedness and efficient heat management. Impact: The sealed design minimizes moisture ingress and vibration-induced wear, extending transformer life in busy industrial environments. Application: Ideal for control panels and machine racks where reliability and a compact footprint drive uptime and maintenance costs. Feature: NEMA 3R enclosure provides indoor-outdoor protection for harsh environments. Impact: Reduces weather-related downtime and eliminates the need for standalone weatherproof cabinets. Application: Suitable for outdoor panels, loading docks, and machinery in factories with variable conditions. Feature: Electrical ratings of 0.5 kVA, 380 V primary, 120/240 V secondary, 60 Hz, single-phase. Impact: Supports common control circuitry while maintaining compact size, reducing inventory and wiring complexity. Application: Powering PLCs, relays, and control circuits in industrial automation. Feature: 115 °C rise rating plus aluminum coil enhances thermal performance and durability. Impact: Faster heat dissipation reduces temperature-related derating and extends service life. Application: Environments with elevated ambient temperatures or high load profiles. Feature: Wiring connection 524O; no taps; easy field wiring. Impact: Simplifies installation, reduces risk of mis-wiring, speeds commissioning. Application: Ideal for new builds and retrofits in control panels where quick hookup matters. Feature: UL Listed status and a one-year warranty provide regulatory confidence and post-sale support. Impact: Mitigates compliance risk and lowers total cost of ownership through predictable service. Application: Any regulated industrial environment seeking dependable power conversion and vendor support.
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FAQs
The S38N11S51N is designed for flexible panel mounting in standard control cabinets and machine racks. Its compact footprint (approximately 4.87 in wide by 4.91 in deep with an 8.97 in height) and NEMA 3R enclosure support indoor-outdoor installations. When planning mounting, ensure adequate ventilation and clearance for accessible wiring and terminals (524O connection).
It is a 0.5 kVA, single-phase transformer with a 380 V primary and 120/240 V secondary at 60 Hz. This rating supports typical control circuits and PLC power supplies while keeping wiring and protection requirements manageable. For load sizing, size the downstream load to stay within the 0.5 kVA rating to avoid voltage drop and overheating.
Yes. It features a NEMA 3R enclosure and is rated indoor-outdoor, providing weather protection suitable for outdoor panels and exposed installations. Aluminum winding and epoxy encapsulation add durability, while UL Listing confirms compliance with safety standards, reducing maintenance and downtime in demanding facilities.
The unit is UL Listed, a key safety certification for electrical devices used in many regions. The NEMA 3R enclosure further supports environmental protection in indoor-outdoor settings. These attributes simplify regulatory approvals for control panels and distributed power applications in manufacturing and processing plants.
Encapsulated design with aluminum winding reduces moisture ingress and thermal stress, lowering maintenance cycles and downtime. The rugged enclosure and UL Listing support reliable operation across shifts, while a 1-year warranty provides post-sale support. Together, these factors contribute to lower total cost of ownership and improved line throughput.