Eaton SPD100400Y4A Surge Protection Device - UL 1449

Featuring a 100 kA per phase surge current rating, the SPD100400Y4A delivers high-energy transient suppression for demanding industrial loads. This performance translates to fewer nuisance trips, reduced motor stress, and longer service life for drives, motors, PLCs, and sensors in mission-critical lines. In 230/400 V Wye configurations, the robust rating provides a protective margin during severe switching events, ensuring process continuity even in challenging electrical environments. The device is configured for 230/400 V Wye with a 4W+G connection, aligning with typical industrial power architectures. This compatibility minimizes wiring errors, accelerates commissioning, and supports straightforward retrofits into existing panels without extensive rewiring. With the power path engineered for reliable transient clamping, maintenance intervals become predictable and downtime-driven costs decrease. The compact form factor also helps maintain clean, organized enclosures. Direct bus mounted panel board compatibility with PRL1a, PRL2a, PRL3a, and PRL3e simplifies installation and reduces cabinet depth requirements. Direct bus mounting aligns the SPD with feeder buses, improving coordination with upstream protection and speeding field commissioning. This integration supports scalable protection across multi-frame panels, making upgrades to higher protection levels more cost-effective. Power Xpert SPD accessories extend monitoring, status reporting, and coordination with Eaton's protection ecosystem for faster fault diagnosis. The device plays well with standard wiring practices, enabling consistent protection schemes and easier replacement planning. For maintenance programs, this translates into reduced spare parts inventory and shorter downtime during protective device swaps. UL 1449 certification underpins repeatable, standards-based protection suitable for regulated environments. Robust enclosure construction, clear labeling, and rugged ingress protection contribute to a long service life in harsh plants. Contractors benefit from a known, standards-driven solution that reduces commissioning risk and supports a faster return on investment for capital projects.