Eaton S34N12P26P General-Purpose Transformer - UL Listed
Part Number: S34N12P26P
Quick Summary
S34N12P26P General-Purpose Encapsulated Transformer provides reliable 0.25 kVA power for indoor-outdoor control panels. Engineers often face space constraints, weather exposure, and wiring compatibility challenges; this unit addresses those issues with a rugged encapsulated design and a compact footprint. UL Listed certification paired with a NEMA 3R enclosure delivers rugged environmental protection, supporting safe operation in harsh environments. The 60 Hz single-phase design aligns with common industrial loads, converting 240/277 V to 120 V with predictable performance. This combination enables faster installation, consistent voltage delivery, and long-term cost savings for automation and control applications.
Product Information
Extended Description
S34N12P26P Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 57P, 60 Hz, single-phase, 240/277 V, 120 V, NONE, 115 °C rise, 0.25 KVA, indoor-outdoor, 451B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S34N12P26P
UPC
786680092459
Product Length/Depth
5.18 in
Product Height
9.34 in
Product Width
4.45 in
Product Weight
13 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
57P
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
451B
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
240/277 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
0.25 kVA
Weathershield
Indoor-Outdoor
0.25 kVA single-phase transformer with 240/277 V primary and 120 V secondary at 60 Hz delivers isolated, stable power for control circuits, reducing nuisance outages and equipment wear. The compact footprint and lightweight 13 lb design simplify mounting in crowded panels and retrofit projects, accelerating deployment and trimming installation costs. EP encapsulation with an aluminum coil improves heat dissipation and vibration resistance, providing reliable operation in both indoor and outdoor environments such as outdoor control cabinets and process panels. A NEMA 3R enclosure enhances weather resistance, while the 57P frame supports standard mounting interfaces used in industrial control gear, enabling quick integration with existing vendor components. The 451B wiring connection and absence of tap-changing provisions simplify wiring schemes and minimize field adjustment errors, delivering predictable performance with minimal maintenance. The unit’s indoor-outdoor weathershield capability helps protect critical loads from humidity, dust, and temperature variations, supporting durable operation in demanding facilities. Overall, this transformer supports cost-effective scalability for automation installations by combining rugged construction with straightforward installation and reliable electrical characteristics.
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FAQs
Install the unit in a suitable enclosure with a NEMA 3R rating for indoor-outdoor use. Mount using the 57P frame and connect primary to 240/277 V, secondary to 120 V with the 451B wiring connection. Ensure proper clearances, secure mounting, and sizing for a 0.25 kVA load, then verify 60 Hz supply compatibility and insulation needs. The UL Listed rating supports safe, code-compliant installation.
The transformer features a primary voltage of 240/277 V and a secondary voltage of 120 V, operating at 60 Hz in a single-phase configuration, with a 0.25 kVA rating suitable for low-power control circuits.
Yes. It uses a NEMA 3R enclosure and EP encapsulation with an aluminum coil, providing protection for indoor-outdoor operation. This makes it suitable for outdoor cabinets and harsh industrial environments where moisture, dust, and temperature variations are present.
The transformer is UL Listed, ensuring adherence to recognized safety standards for electrical equipment. This certification is critical for meeting industry compliance, reducing risk in installed control systems, and facilitating procurement in regulated environments.
Benefit from its compact 4.45 in width, 9.34 in height, and 5.18 in depth, plus a 13 lb weight for easy handling and panel integration. The absence of taps simplifies wiring, while the aluminum coil and 60 Hz single-phase design minimize heat buildup and maintenance, delivering reliable performance in automation and control applications.