Eaton SPM320240D1S Surge Protection Device - UL/CSA 1449

Two-module Max series design enables higher-energy handling and straightforward field replacement, reducing downtime during surge events. The modular construction supports quick service, minimal panel intrusions, and scalable protection as facilities expand. This approach translates to lower maintenance costs while keeping critical controls—such as drives, PLCs, and sensors—protected in harsh industrial environments. The 240 Delta (3W+G) configuration aligns with common plant power layouts, simplifying engineering design. Its two-module arrangement reduces heat buildup and allows individual module replacement, and it is compatible with standard enclosure styles used in industrial control panels.The 320 kA per phase rating delivers robust defense against high-energy transients, minimizing damage to downstream gear and the costly repairs that follow. In practice, this means fewer nuisance trips, extended equipment life, and improved process uptime for motor drives and data acquisition systems. Engineers can specify SPM320240D1S with confidence in demanding production environments. It also supports easy coordination with downstream protection devices and allows for phased maintenance without sacrificing protection.NEMA 4 enclosure with an internal circuit breaker supports installation in challenging plant areas and provides integrated fault isolation. The built-in surge counter adds visibility for maintenance planning, enabling trend analysis and regulatory reporting without extra hardware. Mounted protection becomes part of standard electrical room practices, and the enclosure offers weather resistance and electrical isolation for reliable performance on wet, dusty factory floors.RoHS compliance, UL 1449, CSA Electrical Notice No. 516 Edition 1, and UL 1283 certifications help satisfy safety policies and regulatory requirements across regions. The 15-year warranty, extendable to 20 years with registration, strengthens long-term protection budgeting and reduces lifecycle costs for critical assets. These features support audit readiness, vendor consolidation, and a faster compliance path for new installations.Compatibility with Eaton's SPD MAX family ensures easy stocking, seamless spare-part substitution, and streamlined procurement for engineers, maintenance teams, and procurement professionals tasked with maintaining plant protection. The model scales with system growth, and its cataloged dimensions—9.3 in depth, 14.91 in width, 17.5 in height—and a 50 lb weight help accurate enclosure planning and mounting.