Eaton S27G11S03N General-Purpose Encapsulated Transformer - UL Listed
Part Number: S27G11S03N
Quick Summary
Eaton S27G11S03N general-purpose encapsulated transformer provides dependable low-voltage isolation for commercial and industrial panels. This device addresses mounting, enclosure, and environmental challenges that can complicate power distribution in compact or harsh environments. The unit carries UL Listed safety certification and uses a rugged NEMA 3R enclosure, making it suitable for indoor-outdoor service while preserving reliability. By delivering a 3 kVA, single-phase output from 277 V to 120/240 V, it supports a wide range of control circuits and auxiliary loads. For engineers and procurement teams, the combination of a compact footprint, aluminum winding advantages, and adjustable taps delivers sustained performance with lower installation costs and faster commissioning.
Product Information
Extended Description
S27G11S03N Eaton: Eaton General purpose encapsulated transformer, EP, aluminum, NEMA 3R, 176, 60 Hz, single-phase, 277 V, 120/240 V, 2 at -5% FCBN, 115 °C rise, 3 KVA, indoor-outdoor, 2B
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S27G11S03N
UPC
786680019616
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
66 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
Model N
Coil material
Aluminum
Design
EP
Enclosure
NEMA 3R
Frame
176
Tap size
2 at -5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
2B
Frequency rating
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
Commercial Distribution, Transformers, Volume 2, Tab 2
Eaton Specification Sheet - S27G11S03N
Selling Policy 25-000 - Distribution and Control Products and Services
Encapsulated EP design with aluminum coil reduces weight and improves heat management, enabling easier handling and installation in tight panel spaces. This translates to lower on-site labor costs and greater reliability in harsh environments, making it ideal for control panels and machine enclosures in manufacturing settings. The rugged NEMA 3R enclosure supports indoor-outdoor operation, reducing weather-related maintenance and extending service life in exposed applications while maintaining safety compliance. A 3 kVA, single-phase rating with 277 V primary and 120/240 V secondary provides flexible power distribution for a range of auxiliary loads, helping designers consolidate transformers and simplify wiring in multi-volt systems. The 60 Hz frequency and 115 °C rise rating address thermal performance expectations in moderate to demanding environments. Voltage taps at 2 with -5% FCBN offer precise voltage tuning to match system supply conditions, supporting tighter control loops and improved efficiency. The 2B wiring connection and 8.0 in depth, 14.25 in height, and 7.69 in width footprint align with common panel layouts, reducing enclosure remodeling costs. UL Listed certification reinforces safety and compliance for regulated installations, while the included warranty (one year from installation or 18 months from shipment) minimizes total cost of ownership. This transformer also benefits from proven Eaton engineering, ensuring compatibility with standard distribution practices and facilitating quick integration into existing control architectures.
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FAQs
The S27G11S03N is designed for panel mounting with a compact footprint (8 in L, 7.69 in W, 14.25 in H) and a 66 lb weight. Its NEMA 3R indoor-outdoor enclosure and 2B wiring support straightforward integration into standard control panels, with space for wiring terminations and easy routing of 277 V to 120/240 V loads. Consider allowable ambient conditions and panel cooling when planning the install.
This transformer provides a 277 V primary and a 120/240 V secondary, 60 Hz, single-phase with a 3 kVA VA rating. The voltage tap option is 2 at -5% FCBN, allowing minor voltage adjustments to compensate for supply variations and maintain stable downstream control voltages in demanding applications.
The S27G11S03N carries UL Listed safety certification and uses a NEMA 3R enclosure rated for indoor-outdoor service. This combination supports reliable operation in exposed environments and aligns with common industry compliance requirements for commercial and industrial power distribution equipment.
Yes. The transformer features a voltage tap specified as 2 at -5% FCBN, enabling a modest voltage adjustment to better match system supply conditions. This is beneficial in installations with long feeder runs or fluctuating incoming voltages, helping minimize voltage drop and improve equipment performance.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. This coverage helps mitigate maintenance costs and provides assurance for uptime in critical control and distribution applications, complemented by Eaton’s technical support and documentation such as datasheets and catalog notes.