Eaton S27N11S03X General purpose encapsulated transformer - UL Listed
Part Number: S27N11S03X
Quick Summary
Eaton S27N11S03X General purpose encapsulated transformer provides reliable low-voltage isolation for indoor and outdoor electrical panels. If you’re an engineer or procurement specialist, you know panel reliability hinges on rugged enclosure protection and versatile mounting. This unit ships UL Listed with a NEMA 3R enclosure, designed for indoor-outdoor service, and it uses an aluminum coil for durability. With a 3 kVA rating, 277 V primary and 120/240 V secondary, it streamlines installation and helps reduce wiring complexity and energy waste.
Product Information
Extended Description
S27N11S03X Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 177, 50-60 Hz, single-phase, 277 V, 120/240 V, NONE, 115 °C rise, 3 KVA, indoor-outdoor, 524A
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S27N11S03X
UPC
786680083136
Product Length/Depth
9.89 in
Product Height
16 in
Product Width
10.38 in
Product Weight
130 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
Catalog Notes
50/60 Hz
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
177
Tap size
None
Type
General-Purpose Encapsulated Transformer
Wiring connection
524A
Frequency rating
50-60 Hz
Phase
Single-phase
Primary voltage
277 V
Secondary Voltage
120/240 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: The 3 kVA general-purpose encapsulated transformer delivers substantial power density in a compact footprint, enabling panel designers to support moderate loads without oversized enclosures. This translates to lower cabinet costs and easier cooling in tight spaces; ideal for control panels in manufacturing lines and packaging equipment. Feature → Business Impact → Application: Aluminum coil construction reduces physical weight and improves heat dissipation, lowering installation labor and enabling safer mounting in overhead or restricted-access environments; particularly beneficial for upgrade projects in retrofit applications. Feature → Business Impact → Application: 50/60 Hz compatibility and a 277 V primary with 120/240 V secondary outputs simplify integration with common building power and control circuits, reducing spare parts variety and sparing procurement cycles in plant expansions. Feature → Business Impact → Application: NEMA 3R indoor-outdoor enclosure and Weathershield rating provide robust protection against dust, moisture, and incidental exposure, lowering maintenance cycles and extending service life in outdoor control panels and sheltered outdoor equipment. Feature → Business Impact → Application: UL Listed certification and Eaton’s standard warranty improve compliance with safety programs and supplier risk management, helping QA teams meet supplier qualification criteria while delivering predictable ROI for reliability improvements. Feature → Business Impact → Application: The unit’s wiring connection 524A and precise frame 177 documentation support straightforward installation and replacement in existing installations, reducing commissioning time and minimizing downtime during panel upgrades.
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FAQs
For outdoor or exposed installations, rely on the NEMA 3R enclosure and indoor-outdoor rating to protect against dust and moisture. Ensure proper clearance for cooling and mount in a location with minimal direct exposure to rain. Use a weatherproof conduit entry and confirm wiring connections stay within the 524A configuration to maintain electrical integrity.
The unit features a 277 V primary and a 120/240 V secondary, rated at 3 kVA, with a 50-60 Hz frequency rating and a 115 °C rise. It’s designed for single-phase operation and fits standard control cabinet architectures, reducing the need for custom voltage conversion equipment.
Yes, the S27N11S03X is UL Listed, signaling compliance with recognized safety standards. The enclosure is rated for indoor-outdoor service (NEMA 3R), and Eaton provides warranty coverage per policy 25-000, adding a layer of risk management for ongoing uptime.
Absolutely. The NEMA 3R enclosure with indoor-outdoor Weathershield makes it appropriate for outdoor or semi-exposed locations. Aluminum winding and robust housing help withstand temperature swings and environmental contaminants, reducing maintenance cycles and extending service life in industrial settings.
By consolidating voltage transformation in a compact, UL-listed package with reliable enclosure protection, this transformer can lower panel footprint, simplify procurement, and cut downtime during commissioning. The 3 kVA rating suits mid-load applications, and the aluminum windings improve reliability and heat management, contributing to lower replacement and maintenance costs over time.