Eaton S45N11S03 General-Purpose Transformer - UL Listed
Part Number: S45N11S03
Quick Summary
Eaton General purpose encapsulated transformer enables 450 V to 120/240 V conversion for control panels and equipment. Many installations struggle with heat buildup and weather exposure that threaten uptime and safety. UL Listed for safety and performance, a NEMA 3R enclosure resists moisture, and its indoor-outdoor rating supports rugged installations. Designed for 60 Hz operation in single-phase circuits, it supports efficient power distribution in industrial settings, reducing downtime and maintenance costs. With a 3 kVA rating and compact footprint, it fits standard enclosures and simplifies installation across mixed-use facilities. This transformer uses aluminum windings for cost-effective operation and reliable thermal performance in both indoor and outdoor environments.
Product Information
Extended Description
S45N11S03 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 176, 60 Hz, single-phase, 450 V, 120/240 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 524N
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S45N11S03
UPC
786680065057
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
524N
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
450 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature: General purpose encapsulated transformer with EP design and aluminum coil. Business Impact: rugged construction delivers reliable performance in harsh environments, reducing maintenance cycles and spare-part costs. Application: ideal for robust control panels, machine-tool boards, and distributed power in industrial facilities where space is at a premium. Feature: 3 kVA rating, single-phase, 60 Hz operation with primary 450 V and secondary 120/240 V, housed in a NEMA 3R enclosure. Business Impact: provides safe, compliant voltage conversion with adequate headroom for startup surges, improving uptime and protecting sensitive electronics. Application: suitable for indoor-outdoor installations in manufacturing floors, process lines, and utility rooms that demand consistent voltage without weather-related risk. Feature: Weathershield design, UL Listed certification, and aluminum coil provide corrosion resistance and safety assurance. Business Impact: simplifies regulatory compliance and audit readiness, reduces warranty exposures, and speeds approvals for rugged facilities. Application: outdoor equipment enclosures, damp basements, or outdoor substations where UL certification and NEMA 3R protection matter. Feature: Wiring connection 524N, no tap changes, straightforward integration with standard feeds and distribution panels. Business Impact: reduces installation time and risk of mis-wiring, lowering commissioning costs. Application: panel builders and electrical contractors can deploy this transformer quickly in new builds or retrofit projects. Feature: Compact footprint and moderate weight (8 in depth, 14.25 in height, 7.69 in width, 66 lb) plus Eaton warranty. Business Impact: easier logistics, safer handling, and reliable service with support aligned to 25-000 policy. Application: accessible asset in restricted spaces and lean facilities. Feature: Availability of Eaton documentation including specification sheets and catalogs. Business Impact: ensures engineers can verify electrical ratings, install requirements, and dimensioning against project specs, accelerating design reviews and procurement. Application: engineering offices and procurement teams rely on these official resources for compliance, quoting, and field installation planning.
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FAQs
To install the S45N11S03, mount the unit in a suitable enclosure, connect the primary to 450 V and the secondary to 120/240 V using the 524N wiring arrangement, and ensure the enclosure remains NEMA 3R rated for indoor-outdoor use. Verify 60 Hz compatibility and secure all terminations per Eaton installation guidelines to minimize loose connections and thermal concerns.
The S45N11S03 is a 3 kVA, single-phase transformer with a 450 V primary and 120/240 V secondary, designed for 60 Hz operation. It uses aluminum windings, is UL Listed, and is housed in a NEMA 3R enclosure for indoor-outdoor installation, with a 115 °C rise and a 3KVA rating suitable for startup surges.
Yes. The S45N11S03 features a NEMA 3R enclosure and indoor-outdoor weathershield design, making it appropriate for outdoor or damp environments. It provides weather resistance while maintaining UL safety standards, allowing reliable operation in facilities that require outdoor or semi-exposed power distribution.
The S45N11S03 is UL Listed, ensuring compliance with safety and performance standards. Its NEMA 3R enclosure supports reliable operation in indoor-outdoor conditions, meeting regulatory expectations for rugged industrial applications and simplifying audit processes for facilities with outdoor equipment.
Eaton provides a one-year warranty from the date of installation or eighteen months from shipment, whichever occurs first (Eaton policy 25-000). This coverage supports repair or replacement needs during normal use and is designed to reduce maintenance risk for critical loads in control panels and industrial equipment.