Eaton S27N11P01P Encapsulated Transformer - 1 kVA
Part Number: S27N11P01P
Quick Summary
Introducing the Eaton S27N11P01P encapsulated transformer, a compact, robust solution that converts 277 V primary to 120/240 V secondary for control circuits and auxiliary loads in industrial environments. When space is tight and heat, ventilation, or maintenance access are concerns, engineers face higher lifecycle costs and intermittent downtime. This unit carries CSA certification and UL listing, plus a NEMA 3R enclosure and 115 °C rise, supporting reliable indoor-outdoor service in demanding settings. With a 1 kVA rating, aluminum coil, and 60 Hz single-phase design, it integrates smoothly into legacy panels, improving efficiency, reliability, and total cost of ownership. This gives engineers a predictable, safer upgrade path.
Product Information
Extended Description
S27N11P01P Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 67P, 60 Hz, single-phase, 277 V, 120/240 V, None, 115 °C rise, 1 KVA, indoor-outdoor, 524A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S27N11P01P
UPC
786680103766
Product Length/Depth
6.56 in
Product Height
13.03 in
Product Width
5.53 in
Product Weight
14 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
CSA Certified UL Listed
Catalog Notes
EP and EPT on New Resin (135°C Rise)
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
67P
Tap size
None
Type
General-purpose encapsulated transformer
Wiring connection
524A
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
277 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
1 kVA
Weathershield
Indoor-Outdoor
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S27N11P01P
Selling Policy 25-000 - Distribution and Control Products and Services
The general-purpose encapsulated design with a 1 kVA rating enables compact 277 V to 120/240 V conversion, simplifying panel layout and reducing spare parts. This translates into faster installations and lower field wiring costs, especially in retrofit projects where space is at a premium and downtime matters. Applications include control panels, machine enclosures, and lighting circuits in manufacturing lines. The NEMA 3R enclosure supports indoor-outdoor use, reducing the need for extra weatherproofing and enabling installations in alleyways, yards, or damp plant areas, which lowers total project risk and maintenance cycles. Aluminum coil construction keeps the transformer lighter for easier handling and installation, while the 67P frame ensures sturdy mounting in tight spaces. A 115 °C rise rating provides thermal headroom for hot environments, improving longevity and reliability. No taps on the winding reduce mis-wiring risk, while 524A wiring connections streamline pre-wiring in control cabinets, cutting assembly time. CSA certification and UL listing bolster regulatory compliance, supporting audits and customer requirements without overdesigning the panel.
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FAQs
The S27N11P01P is designed for indoor-outdoor use with a NEMA 3R enclosure, which protects against rain, ice, and dust. When installing, provide adequate clearance for ventilation, secure mounting on a rigid panel, and maintain proper ambient temperature to respect the 115 °C rise rating. No tap changes are needed, simplifying wiring and reducing expansion concerns in retrofit projects.
Yes. The transformer is specified for 277 V primary and 120/240 V secondary in single-phase 60 Hz service, making it ideal for control circuits, auxiliary loads, and panel power isolation in industrial environments. Its 1 kVA rating supports typical control loads, while the aluminum winding and 67P frame enable compact integration within existing cabinets.
The S27N11P01P carries CSA certification and UL listing, which are critical for safety and regulatory compliance in many markets. These marks help meet electrical codes, streamline audits, and reassure customers about reliability in harsh environments. The rugged NEMA 3R enclosure further supports compliant outdoor installations alongside indoor applications.
Key specs include a 1 kVA volt-ampere rating, a 277 V primary, 120/240 V secondary, 60 Hz frequency, and a 115 °C temperature rise. The unit is single-phase with no taps, and employs a 524A wiring configuration, all of which support straightforward integration into standard control panels and compact footprints.
The transformer’s encapsulated design, no-tap winding, low weight (14 lb), and pre-wired 524A connections shorten install time and minimize wiring errors. The NEMA 3R enclosure enables outdoor use, reducing extra enclosures and weatherproofing steps. CSA/UL certifications simplify commissioning and reduce long-term maintenance costs by ensuring reliable, code-compliant operation.