Eaton S27G12S03CU Transformer - UL Listed
Part Number: S27G12S03CU
Quick Summary
The Eaton S27G12S03CU Transformer is a general‑purpose encapsulated transformer designed for reliable power distribution in industrial environments. Engineers often contend with moisture ingress, space constraints, and complex field wiring; this unit’s epoxy encapsulation and rugged NEMA 3R enclosure help mitigate those challenges. It carries UL Listed certification and a NEMA 3R rating, enabling safe indoor‑outdoor service, while its 60 Hz single‑phase design suits 277 V to 120 V control circuits. The model also supports copper windings and a compact 176 frame for efficient installation, with long‑term operating cost advantages and scalable control power for growing facilities.
Product Information
Extended Description
S27G12S03CU Eaton: Eaton General purpose encapsulated transformer, EP, copper, NEMA 3R, 176, 60 Hz, single-phase, 277 V, 120 V, 2 at -5% FCBN, 115 °C rise, 3 KVA, indoor-outdoor, 2AB
Product Name
Eaton General purpose encapsulated transformer
Catalog Number
S27G12S03CU
UPC
786680083129
Product Length/Depth
8 in
Product Height
14.25 in
Product Width
7.69 in
Product Weight
65 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
Copper
Design
EP
Enclosure
NEMA 3R
Frame
176
Tap size
2 at -5% FCBN
Type
General-Purpose Encapsulated Transformer
Wiring connection
2AB
Frequency rating
60 Hz
Phase
Single-phase
Primary voltage
277 V
Secondary Voltage
120 V
Temperature rise
115 °C rise
Volt ampere rating
3 kVA
Weathershield
Indoor-Outdoor
Feature → Business Impact → Application: Copper windings maximize efficiency and heat dissipation, reducing energy loss and extending service life in continuous operation; ideal for high‑duty control circuits in manufacturing plants. Feature → Epoxy encapsulation and NEMA 3R enclosure provide moisture resistance and weather protection, improving uptime in environments where moisture, dust, or incidental moisture exposure is possible; applicable to outdoor equipment rooms and demanding industrial spaces. Feature → 3 kVA, single‑phase, 277 V to 120 V output with 60 Hz rating supports common building automation and lighting control circuits; enables standardized, low‑voltage distribution across multiple panels. Feature → Tap size 2 at -5% FCBN and 2AB wiring connection simplify site adjustments and wiring layouts, reducing installation time and risk of miswiring. Feature → 176 frame with dimensions 8 in × 7.69 in × 14.25 in and 65 lb weight balances power capability with space constraints, easing mounting in compact electrical rooms and switchgear.
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FAQs
Plan for a secure mounting compatible with a 176 frame footprint and 65 lb weight. Use the 2AB wiring connection layout and account for the 8 inch depth, 7.69 inch width, and 14.25 inch height. The unit’s NEMA 3R enclosure supports indoor-outdoor locations, and UL Listed status ensures compliance. Ensure accessible clearance for taps and routine inspection.
This is a single‑phase, 3 kVA transformer with a primary of 277 V and a secondary of 120 V, operating at 60 Hz. It features copper coil windings, a voltage tap of 2 at -5% FCBN, and 2AB wiring. The enclosure is designed for indoor-outdoor use (Weathershield: Indoor-Outdoor) with a 176 frame.
Yes. The NEMA 3R enclosure and indoor-outdoor rating make it appropriate for equipment rooms and outdoor installations exposed to the elements. UL Listed certification adds an additional layer of regulatory compliance for control power circuits, while the copper windings and encapsulation provide robust protection against moisture and dust in demanding environments.
The transformer is UL Listed, indicating adherence to recognized safety standards. It uses a NEMA 3R enclosure, suitable for indoor-outdoor service, which is important for installations in spaces subject to weather exposure or humidity. These certifications support regulatory compliance, OEM integration, and safety documentation required for industrial projects.
Epoxy encapsulation minimizes moisture ingress and dust intrusion, reducing maintenance frequency and extending service life in harsh environments. The rugged construction lowers downtime and supports longer replacement intervals. A 1‑year warranty from installation (or 18 months from shipment) provides initial protection while the compact 176 frame and copper windings contribute to energy efficiency and lower operating costs.