Eaton S27N12B03CU Transformer - UL Listed, 3 kVA

Paragraph 1: Encapsulated copper-wound design delivers rugged protection in harsh environments by guarding windings against moisture, dust, and vibration. This construction reduces field failures and maintenance costs by limiting exposure to contaminants and thermal cycling. It is ideal for control panels, machine centers, and compact power-distribution banks in busy manufacturing facilities. Paragraph 2: With a 3 kVA rating at 60 Hz and single-phase operation, the S27N12B03CU converts 277 V input to a stable 120 V output for relays, PLCs, and lighting circuits. The copper winding and tight manufacturing tolerances support consistent voltage under load swings, minimizing nuisance trips and equipment wear. This makes it well-suited for automation panels, switchgear, and process-line equipment across factories and warehouses. Paragraph 3: Enclosed in a NEMA 3R indoor-outdoor housing, the transformer tolerates outdoor mounting and exposure to varying temperatures. The indoor-outdoor weathershield reduces enclosure retrofit costs and simplifies site planning for industrial facilities. It supports flexible mounting on walls, frames, or cabinet interiors while maintaining safety and performance standards. Paragraph 4: Copper coils deliver high efficiency and lower heat generation compared with alternative designs, improving overall system reliability. The 80 °C rise specification guides thermal management in crowded panels, helping maintain performance without aggressive cooling. Benefits include reduced energy waste and extended service life in continuous-operation environments. Paragraph 5: Wiring connections use 511DD, enabling straightforward termination with common panel hardware and existing Eaton accessories. UL Listed certification reinforces compliance during commissioning, while the rugged enclosure simplifies audits and maintenance planning. Installers appreciate predictable wiring layouts, fast terminations, and consistent electrical performance across a range of loads. Paragraph 6: Overall, the S27N12B03CU provides a robust, space-efficient power source for 277 V to 120 V circuits in industrial settings. Its 3 kVA capacity supports diverse circuits from PLC power to lighting feeders, while the compact footprint aids ergonomic installations. For reliability-focused facilities, this transformer reduces downtime, lowers maintenance frequency, and helps meet safety and performance standards.