Eaton S27N11P51P Transformer 0.5 kVA - UL Listed
Part Number: S27N11P51P
Quick Summary
The Eaton S27N11P51P transformer is a general-purpose encapsulated transformer designed for reliable indoor-outdoor power distribution in control panels and industrial equipment. Engineers often struggle with space limitations, weather exposure, and mounting compatibility when expanding power distribution. UL Listed certification ensures safety and regulatory compliance, while the NEMA 3R enclosure supports dependable performance in harsh environments. With a compact 0.5 kVA rating and a streamlined footprint, this unit reduces wiring complexity and installation time, lowering total cost of ownership across automation systems. The design is well suited for commercial and industrial applications, from machine tools to control panels, delivering dependable power with predictable maintenance needs.
Product Information
Extended Description
S27N11P51P Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 57P, 60 Hz, single-phase, 277 V, 120/240 V, NONE, 115 °C rise, 0.5 KVA, indoor-outdoor, 524A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S27N11P51P
UPC
786680097638
Product Length/Depth
5.18 in
Product Height
9.34 in
Product Width
4.45 in
Product Weight
15 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
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
0.5 kVA
Weathershield
Indoor-Outdoor
Feature: Encapsulated general-purpose transformer design with aluminum coil and NEMA 3R enclosure. Business Impact: Provides rugged protection against dust, moisture, and incidental weather exposure, extending service life while reducing field maintenance. Application: Ideal for control panels and outdoor-rated power distribution in harsh environments. Feature: 60 Hz, single-phase operation with 277 V primary and 120/240 V secondary. Business Impact: Simplifies integration with facility power distribution and downstream equipment, enabling plug-and-play compatibility with common industrial loads. Application: Suitable for panel boards, machine controls, and process equipment. Feature: 0.5 kVA VA rating in a 57P frame with a 524A wiring connection. Business Impact: Supports mid-range control and automation loads with a compact footprint, reducing enclosure requirements and installation time. Application: Streamlines project procurement and reduces space costs in narrow panels. Feature: Indoor-Outdoor usability with 115 °C rise and UL Listed certification. Business Impact: Delivers reliable performance across environments while meeting stringent safety standards, speeding commissioning and compliance testing. Application: Widely used in facilities needing durable, code-compliant transformers for critical control systems. Feature: Compact weight (approximately 15 lb) and mounting flexibility. Business Impact: Eases handling, shipping, and retrofit projects, lowering labor costs and downtime during installation. Application: fits tight spaces in industrial equipment racks and smart factories with limited footprint.
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FAQs
The S27N11P51P is designed for indoor-outdoor use in NEMA 3R environments and supports control panels, machine tools, and distributed power applications. Its 57P frame and 15 lb weight enable flexible mounting, while the 524A wiring connection supports standard control wiring. Plan for a single-phase, 60 Hz system with 277 V primary and 120/240 V secondary.
This transformer provides 0.5 kVA, 277 V primary, 120/240 V secondary, and operates at 60 Hz in a single-phase configuration. It features an aluminum coil and is rated for a 115 °C rise, with a UL Listed certification to support safety and compliance in industrial environments.
Yes. Its encapsulated EP design, compact 57P frame, and 0.5 kVA rating are well-suited for space-constrained control panels and machine tooling. The aluminum winding and NEMA 3R enclosure provide rugged reliability, while the 277/120/240 V voltage options align with common automation and distribution schemes.
The transformer is UL Listed, which confirms safety and conformance to recognized standards, simplifying procurement and regulatory clearance. The NEMA 3R enclosure adds environmental protection for indoor-outdoor use, enabling installation in a wider range of industrial locations with reduced risk.
With a rugged enclosure and simple wiring, maintenance is minimal. Expect standard inspection of connections and insulation integrity during routine plant checks. Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first, helping safeguard long-term performance and ROI in critical power distribution.