Eaton S29N29E25N Transformer - UL Listed, 25 kVA
Part Number: S29N29E25N
Quick Summary
The Eaton S29N29E25N general-purpose encapsulated transformer is designed to provide reliable power isolation and 208/208 V step-down/up in single-phase, 60 Hz distribution networks for indoor and outdoor installations. Installers often grapple with harsh environments, space constraints, and long lead times that slow commissioning. This model features a rugged NEMA 3R enclosure, aluminum coil, and an electrostatically shielded design, delivering durable performance in demanding settings. UL Listed certification further reinforces safety and compliance in industrial applications, while the 25 kVA rating supports scalable power distribution from utility feeds to local loads. With indoor-outdoor versatility and Eaton's warranty, operators gain predictable reliability, reduced downtime, and a clear path to lifecycle cost optimization.
Product Information
Extended Description
S29N29E25N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 182, 60 Hz, single-phase, 208 V, 208 V, NONE, 115 °C rise, 25 KVA, indoor-outdoor, 77B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S29N29E25N
UPC
786680108358
Product Length/Depth
14.12 in
Product Height
23.31 in
Product Width
16.35 in
Product Weight
159 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
182
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
77B
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
208 V
Temperature rise
115 °C rise
Volt ampere rating
25 kVA
Special features
Electrostatically shielded
Weathershield
Indoor-Outdoor
Encapsulated construction with epoxy encapsulation and electrostatic shielding protects windings from moisture, dust, and contaminants, reducing maintenance needs and extending service intervals. This translates to higher equipment availability and lower total cost of ownership in busy production environments. The rugged NEMA 3R enclosure enables indoor-outdoor installation, safeguarding the transformer in varying climates and factory conditions while simplifying outdoor mounting in turf or coated steel enclosures. Aluminum coil material enhances corrosion resistance and contributes to durable performance in challenging environments, supporting longer service life and stable voltage regulation under load transients. With a 25 kVA rating and 208 V primary and secondary, the unit delivers dependable power distribution for control panels, automation equipment, and machine tools without aggressive overdesign. The 182 frame and compact footprint (14.12 in L, 16.35 in W, 23.31 in H) fit tighter spaces and streamline panel layouts, reducing installation time and enclosure costs. Wiring uses the 77B connection and features no taps, simplifying initial setup and minimizing maintenance complexity. The combination of UL Listed safety, 60 Hz operation, and Weathershield indoor-outdoor capability supports compliant deployments across diverse facilities, while the 115 °C rise rating provides robust thermal tolerance for short-term overloads and hot environments. A one-year limited Eaton warranty further reinforces confidence in performance, helping maintenance planners and procurement teams validate lifecycle planning and budget risk mitigation.
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FAQs
This general-purpose encapsulated transformer is ideal for industrial control panels, machine tools, and distributed power in manufacturing facilities. With a 25 kVA rating and 208 V primary/secondary, it supports mid-range loads, while the rugged NEMA 3R enclosure and epoxy encapsulation enable reliable operation in both indoor and outdoor environments, simplifying panel design and installation.
Key ratings include a 25 kVA volt-ampere rating, 208 V primary and 208 V secondary, single-phase operation at 60 Hz, and an 115 °C rise. It uses a 77B wiring connection, has no tap settings, and is UL Listed, making it suitable for standard industrial power distribution and control applications.
Yes. The S29N29E25N is designed for indoor-outdoor use thanks to its NEMA 3R enclosure and Weathershield capability. This enables installation in exterior equipment rooms, shaded outdoor locations, or exposed factory areas, provided proper mounting and ventilation are observed.
The transformer is UL Listed for safety compliance. It features epoxy encapsulated windings with electrostatic shielding for enhanced insulation and moisture resistance, a rugged NEMA 3R enclosure for weather protection, and a 60 Hz single-phase design suitable for industrial environments. These features collectively support safer operation and easier regulatory adherence.
Plan for routine inspection of connections and enclosure integrity, given the indoor-outdoor design. The unit carries Eaton’s warranty of one year from installation or 18 months from shipment, whichever occurs first, so schedule preventive maintenance accordingly. With no taps to adjust, on-site service is simplified, supporting lower lifecycle costs and predictable uptime.