Eaton S44N25S15 General Purpose Transformer - UL Listed
Part Number: S44N25S15
Quick Summary
Eaton S44N25S15 transformer delivers reliable low-voltage power conversion for industrial control and distribution applications. Many engineers face space constraints, weather exposure, and the challenge of maintaining consistent voltage in busy facilities. This unit is UL Listed and housed in a NEMA 3R enclosure for indoor-outdoor service, with a rugged aluminum winding design built to survive harsh environments. Its 60 Hz single-phase operation at 15 kVA supports dependable service for machine controls, control panels, and distribution subsystems. The design also favors straightforward installation and Eaton-compatible wiring, helping minimize commissioning time while ensuring compliance with safety standards. By combining compact footprint with proven reliability, it delivers tangible business value through uptime, safety, and energy-conscious operation.
Product Information
Extended Description
S44N25S15 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 180, 60 Hz, single-phase, 440 V, 220 V, NONE, 115 °C rise, 15 KVA, indoor-outdoor, 511U
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S44N25S15
UPC
786680097522
Product Length/Depth
10.52 in
Product Height
19 in
Product Width
13.38 in
Product Weight
0.001 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
180
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
511U
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
440 V
Secondary Voltage
220 V
Temperature rise
115 °C rise
Volt ampere rating
15 kVA
Weathershield
Indoor-Outdoor
Feature: General purpose encapsulated transformer design with aluminum windings provides durability and a compact footprint. Business Impact: Reduces panel depth while increasing reliability, lowering installation time and long-term maintenance costs. Application: Ideal for machine control panels and distribution subsystems in harsh environments. Feature: NEMA 3R enclosure and indoor-outdoor suitability enable safe outdoor mounting and weather resistance. Business Impact: Frees space by eliminating the need for additional weatherproof housings, improving site flexibility. Application: Outdoor control enclosures and exposed indoor spaces. Feature: 60 Hz single-phase operation with 440 V primary and 220 V secondary at 15 kVA. Business Impact: Delivers predictable voltage transformation for standard plant loads, minimizing voltage drop and downtime. Application: Control circuits and auxiliary power in manufacturing lines. Feature: Aluminum coil material reduces weight and enhances corrosion resistance. Business Impact: Eases handling during installation and extends component life in humid or corrosive environments. Application: Field wiring in production facilities and process lines. Feature: 511U wiring connection and defined dimensions (10.52 in L, 13.38 in W, 19 in H) support straightforward integration. Business Impact: Streamlined panel approvals and faster commissioning due to consistent fit and wiring layouts. Application: Existing Eaton ecosystems and standard electrical rooms. Feature: UL Listed certification and rugged construction provide safety and compliance assurance. Business Impact: Simplifies procurement and regulatory validation, reducing risk and audit findings. Application: Safety-critical controls in industrial facilities and distributed power networks.
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FAQs
Plan for the transformer’s footprint: 13.38 in wide, 19 in high, and 10.52 in deep, with a 511U wiring connection. Ensure adequate clearance for heat dissipation in a 60 Hz, single-phase system. The enclosure is NEMA 3R, enabling safe mounting in both indoor and outdoor panel spaces. Verify compatible panel cutouts and mounting hardware per Eaton installation guidelines.
The unit delivers 15 kVA at 60 Hz in a single-phase configuration, with a 440 V primary and 220 V secondary. It features aluminum windings, a 115 °C rise rating, and a NEMA 3R indoor-outdoor enclosure. This combination supports reliable voltage transformation for typical control circuits and distribution loads in industrial facilities.
Yes. The transformer uses a NEMA 3R enclosure designed for indoor-outdoor service, and its Weathershield specification supports operation in varied environmental conditions. This makes it well-suited for outdoor control panels, substations, and exposed electrical rooms without requiring additional weatherproof housings.
This model is UL Listed, providing essential safety certification for electrical components in industrial installations. The UL listing, combined with the NEMA 3R enclosure, helps ensure compliance with safety standards and reduces regulatory risk during audits and integrations with other UL-certified equipment.
Expect minimal maintenance due to robust encapsulated design and aluminum windings, which resist corrosion and reduce thermal wear. The 15 kVA rating supports scalable power for multiple loads, improving uptime and reducing voltage-related outages. A one-year Eaton warranty further mitigates initial lifecycle risk and supports rapid replacement if needed.