Eaton S29N11B26 General-Purpose Transformer - UL Listed
Part Number: S29N11B26
Quick Summary
Eaton S29N11B26 General-Purpose Transformer provides compact power isolation for industrial control panels. Engineers often struggle with tight panel space and harsh environments where moisture and dust threaten reliability. This encapsulated transformer is UL Listed and housed in a NEMA 3R enclosure, offering dependable indoor-outdoor protection for demanding installations. It supports 60 Hz, single-phase operation with a 208 V primary and 120/240 V secondary, making it easy to standardize on common building power. The design reduces heat buildup and simplifies maintenance while delivering predictable, steady performance in power management and distribution applications. With a small footprint and light weight, it also streamlines installation labor and reduces panel footprint in automation projects.
Product Information
Extended Description
S29N11B26 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 56, 60 Hz, single-phase, 208 V, 120/240 V, NONE, 80 °C rise, 0.25 KVA, indoor-outdoor, 26A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S29N11B26
UPC
786680071652
Product Length/Depth
4.06 in
Product Height
8.97 in
Product Width
4.87 in
Product Weight
12 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
56
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
26A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
208 V
Secondary Voltage
120/240 V
Temperature rise
80 °C rise
Volt ampere rating
0.25 kVA
Weathershield
Indoor-Outdoor
The general-purpose encapsulated design with an aluminum coil reduces exposure to contaminants and minimizes heat buildup, improving reliability in compact cabinets. This enables machines in limited-space panels to run cooler and longer, translating to reduced maintenance and downtime. Target applications include industrial automation, OEM equipment, and process control cabinets. The EP enclosure and NEMA 3R rating provide weather resistance, cutting protective conduit runs and maintenance costs for outdoor or semi-exposed installations. UL Listed certification simplifies compliance and procurement, allowing faster project sign-off and safer operation in regulated facilities. With 208 V primary and 120/240 V secondary operation at 60 Hz, it integrates smoothly with standard plant power, reducing wiring complexity and inventory needs. A 0.25 kVA rating, 80 °C rise, 56 frame, and 26 A wiring capability support steady performance under load for control circuits in conveyors and packaging lines. The compact footprint and indoor-outdoor capability minimize installation footprint and labor, enabling flexible mounting in crowded automation spaces and retrofit projects.
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FAQs
The S29N11B26 uses a 208 V primary and 120/240 V secondary, designed for single-phase operation at 60 Hz. It integrates with standard control panel power rails and PLC inputs, and its aluminum winding minimizes thermal buildup, supporting reliable performance in compact cabinets.
Consider the 0.25 kVA rating, 208 V primary, 120/240 V secondary, and 60 Hz single-phase operation. The aluminum winding aids efficiency, while the 80 °C rise indicates acceptable temperature under load. The UL Listed certification and NEMA 3R enclosure support safe, compliant installation in both indoor and outdoor environments.
Yes. It features a NEMA 3R enclosure and indoor-outdoor Weathershield capability, providing moisture and dust protection. This makes it a good fit for outdoor panels, exposed machinery rooms, or facilities with variable climates without sacrificing reliability.
The unit carries Eaton’s standard warranty policy, with coverage starting at installation or shipment, whichever occurs first. Maintenance is typically minimal; ensure clean connections, proper ventilation, and periodic inspections of mounting and wiring to sustain performance and extend service life.
The transformer reduces panel footprint and wiring complexity while improving reliability through a rugged encapsulated design. Its compact size and outdoor suitability minimize installation labor and enclosure requirements, delivering lower downtime, easier maintenance, and standardized power for PLCs and sensors across automation lines.