Eaton SPD100240S3K Surge Protection Device - UL 1449

High surge capability with a 100 kAIC interrupt rating protects sensitive loads from large transient events, reducing the risk of equipment damage and costly downtime. This means data loggers, drives, and control panels stay online longer, even during severe storms or industrial switching operations. The Eaton SPD100240S3K is designed for 120/240 V distributions, making it a natural fit for commercial and light industrial panels. The 120/240 V split single-phase configuration ensures compatibility with existing site power networks, simplifying procurement and installation. Engineers can rely on a familiar voltage class while meeting protection standards without reconfiguring feeders. The sidemount external mounting option streamlines retrofits and minimizes panel closure work, accelerating project timelines. The NEMA 1 enclosure provides robust indoor protection and a clean, compact footprint that fits standard electrical rooms. The external side mounting improves serviceability, allowing quick replacement or inspection during routine maintenance. A standard feature package and integrated surge counter deliver visibility into surge events for compliance reporting. Operating voltage options include 150 L-N, 150 L-G, 150 N-G, 300 L-L, enabling comprehensive protection for multi-path surges common in modern distributions. This versatility supports motors, drives, and PLC interfaces while maintaining safe operating margins. The 15-year warranty further lowers lifecycle costs by reducing replacement cycles and service calls. UL 1449 certified protection gives users confidence in safety and performance, with Eaton's datasheets backing field selection. The combination of reliability, ease of installation, and documented performance helps engineering teams justify the upgrade to leadership.