Eaton S12N27S51 General purpose encapsulated transformer - UL Listed
Part Number: S12N27S51
Quick Summary
Eaton general purpose encapsulated transformer provides reliable, isolated low-voltage power for control panels and indoor-outdoor automation systems. Engineers often grapple with weather exposure, space constraints, and compliance, but this unit's NEMA 3R enclosure, indoor-outdoor rating, and UL listing help mitigate those challenges. Key certifications include UL Listed safety approval, a NEMA 3R enclosure for indoor-outdoor use, and a weather-rated design that supports operation in diverse environments. With a compact 17 lb footprint and a 0.5 kVA rating, it delivers efficient control-panel power distribution while simplifying installation and maintenance for OEMs and industrial end-users.
Product Information
Extended Description
S12N27S51 Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 57, 60 Hz, single-phase, 120 V, 277 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 519G
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S12N27S51
UPC
786680067136
Product Length/Depth
4.91 in
Product Height
8.97 in
Product Width
4.87 in
Product Weight
17 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
57
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
519G
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
120 V
Secondary Voltage
277 V
Temperature rise
115 °C rise
Volt ampere rating
0.5 kVA
Weathershield
Indoor-Outdoor
Feature: Aluminum coil reduces weight while maintaining efficient power transfer. Business impact: lighter units simplify field installation and lower handling costs, while aluminum construction reduces copper price exposure. Application: panel builders and compact machine enclosures benefit from easier mounting and faster assembly. Feature: NEMA 3R enclosure with indoor-outdoor rating. Business impact: protects critical windings and connections from moisture and dust, enabling reliable operation in outdoor or harsh spaces without extra housings. Application: outdoor equipment, control cabinets near loading docks. Feature: 0.5 kVA, 120 V primary to 277 V secondary, 60 Hz single-phase with 519G wiring. Business impact: supports common automation loads in control panels, ensuring compatibility with standard field devices while keeping a compact footprint. Application: automation panels, lighting feeders, and small equipment. Feature: 115 °C rise and UL Listed safety. Business impact: maintains safe operation under peak loads, reduces risk of insulation damage, and supports regulatory compliance. Application: industrial automation, building controls. Feature: 1-year warranty from installation or 18 months from shipment. Business impact: lowers risk and simplifies procurement decisions for maintenance teams. Application: maintenance planning, OEM procurement. Feature: simple wiring with standard 519G connections and no tap changer. Business impact: reduces commissioning time and potential mis-wiring, supports quick replacements in legacy equipment. Application: retrofit projects and new machine builds.
Get a Quick Quote for a Eaton S12N27S51
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton S12N27S51?
Enquire Now
FAQs
The S12N27S51 is a compact, single-phase transformer with a 4.91 in length, 8.97 in height, and 4.87 in width, designed for straightforward mounting. It uses a 519G wiring connection and has no taps, simplifying wiring schemes and reducing commissioning time. Its NEMA 3R enclosure supports indoor-outdoor installations, reducing the need for additional housings.
This transformer is 60 Hz, single-phase, with a 120 V primary and 277 V secondary, rated at 0.5 kVA. It is UL Listed and designed for indoor-outdoor service with a 115 °C rise, providing reliable power for control circuits while fitting within compact panel spaces.
Yes. The unit features a NEMA 3R enclosure and an indoor-outdoor Weathershield rating, enabling safe operation in varied environments without additional protective housings. This makes it ideal for outdoor control panels, equipment trailers, or locations with exposure to moisture and dust.
The transformer is UL Listed, carries a NEMA 3R enclosure rating for weather resistance, and is designed for reliable 60 Hz operation. These certifications ensure electrical safety, environmental resilience, and regulatory compliance for industrial and building automation applications.
With a 0.5 kVA rating and aluminum coil, the unit offers efficient power transfer with a lightweight footprint, reducing installation and handling costs. The UL listing and 3R enclosure minimize downtime and service needs, while a 1-year (or 18-month from shipment) warranty lowers long-term risk and supports total cost of ownership optimization.