Eaton SPC050277N3P Surge Protection Device - UL 1449

50 kA surge capacity at 277 V single-phase operation provides robust frontline protection for critical loads, including PLCs, drives, and control panels. The Eaton SPC series is designed to clamp transients quickly, limiting voltage spikes to prevent insulation stress and component wear. In practical terms, this means fewer equipment failures during lightning events or utility switching, translating into measurable uptime gains and lower maintenance costs for automation lines. UL 1449 listing confirms compliance with industry surge protection standards, while the rugged NEMA 4X enclosure channels moisture, dust, and corrosion resistance to suit harsh environments. This combination supports both indoor and outdoor deployments, including cabinet-mounted panels and outdoor equipment enclosures where reliability matters most. Audible alarm provides immediate feedback when a surge event or protection device fault occurs, enabling connected monitoring systems to trigger alarms or maintenance workflows, reducing downtime and speeding support responses. With dimensions of 5.5 in depth, 6 in height, and 3.19 in width, and an external side mounting method, it’s straightforward to retrofit into existing installations with minimal wiring changes. The 2.5 lb weight keeps installation handling easy, while the compact footprint leaves room for adjacent devices in crowded panels. A 10-year warranty underlines Eaton’s confidence in long-term performance, and compatibility with the SPC series ensures straightforward scalability across facilities. The 277 V rating aligns with many industrial power distributions, and the external mounting supports quick service or replacement without rewiring.