Eaton S54N11S03 Transformer - UL Listed
Part Number: S54N11S03
Quick Summary
Eaton S54N11S03 Transformer provides general-purpose encapsulated power conversion for industrial control panels. Operators often struggle with unreliable voltage and harsh environments that threaten uptime. UL Listed certification ensures safety and regulatory compliance, and the unit uses a NEMA 3R enclosure for indoor-outdoor protection. Its rugged aluminum coil, 3 kVA rating, and 60 Hz operation fit mainstream automation projects while enabling easy integration with 120/240 V systems. For procurement teams, this transformer supports standard distribution practices and simplifies stocking with a compact footprint and straightforward hookup to PLCs and sensors.
Product Information
Extended Description
S54N11S03 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 176, 60 Hz, single-phase, 120 V, 208 V, 240 V, 277 V, 120/240 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 566B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S54N11S03
UPC
786680031571
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
66 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
176
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
566B
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
120 V, 208 V, 240 V, 277 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature: 3 kVA power rating at 60 Hz and single-phase operation. Business Impact: Supports typical control circuits and machine logic without overloading, reducing the need for transformers in parallel configurations. Application: Control panels and machine controls in manufacturing lines benefit from reliable voltage conversion. Feature: Primary voltages 120 V, 208 V, 240 V, 277 V with a 120/240 V secondary. Business Impact: Flexible sourcing from common mains reduces retrofit time and compatibility risk across legacy equipment. Application: Retrofit projects and new installations in mixed-voltage environments. Feature: Aluminum coil and encapsulated EP design with NEMA 3R enclosure. Business Impact: Superior durability and corrosion resistance enable indoor-outdoor use with minimal maintenance. Application: Outdoor panels and harsh factory floors where weather protection is critical. Feature: Weathershield Indoor-Outdoor capability and UL Listed certification. Business Impact: Compliance and environmental protection lower total cost of ownership and improve safety margins. Application: Industrial automation deployments requiring regulated protection and easy servicing. Feature: Dimensions and weight 8 in length, 14.25 in height, 7.69 in width, 66 lb. Business Impact: Compact footprint and manageable weight simplify installation and mounting on standard racking. Application: Space-constrained control rooms and compact electrical cabinets. Feature: Wiring connection 566B and 115 °C rise. Business Impact: Straightforward wiring and predictable thermal performance enable reliable operation under peak loads. Application: Panel wiring and heat management in continuous-operation environments.
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FAQs
When installing the S54N11S03, verify enclosure mounting compatibility with NEMA 3R requirements and ensure adequate clearance for heat dissipation. Use the 566B wiring connection and route conductors to align with the primary voltages (120/208/240/277 V) and 120/240 V secondary. Tighten terminations to manufacturer torque specs and document the setup for future maintenance.
The unit is a single-phase, 3 kVA transformer operating at 60 Hz. Primary voltages supported are 120 V, 208 V, 240 V, and 277 V, with a 120/240 V secondary. It features aluminum windings, a 115 °C rise, and a NEMA 3R enclosure, making it suitable for indoor-outdoor environments while delivering consistent voltage to PLCs and sensors.
Yes. The S54N11S03 uses a NEMA 3R enclosure and is rated Indoor-Outdoor, supported by UL Listed safety certification. This combination provides weather resistance and protection against dust, rain, and indirect exposure, making it appropriate for outdoor-mounted control panels and exposed industrial spaces.
This transformer is UL Listed, ensuring compliance with safety standards. The NEMA 3R enclosure supports environmental protection for indoor-outdoor use. While not all regions require CE marking, verify local electrical codes for transformer installations and ensure compatibility with your equipment, especially in regulated sectors like food, pharma, or energy automation.
The encapsulated aluminum-windings design reduces moisture ingress and insulation degradation, lowering maintenance needs. The rugged enclosure and standard 3 kVA rating support predictable performance across peak loads, contributing to higher uptime and a faster return on investment in machinery and control panels.