Eaton LGSDC3400FAW PV Gard MCCB - UL 489 50 kAIC

PVGard DC/PV protection with 400 A rating and 600 Vac drives reliable overcurrent protection for solar arrays. The business impact is a safeguarded PV circuit that minimizes downtime and equipment damage, enabling uninterrupted power delivery in commercial and utility-scale installations. The LG-frame molded case design fits standard electrical enclosures, streamlining procurement and installation in rooftop and ground-mount PV projects. The complete breaker assembly, described as a complete breaker with no terminals, reduces field assembly steps. By pre-assembling essential protective features in a single unit, engineers gain faster wiring and improved protection coordination across DC segments. Applications include PV inverters, combiner boxes, and PV string protection where space is at a premium. Fixed thermal with adjustable magnetic trip (T185) delivers precise nuisance-trip suppression and selectivity. This feature improves reliability and reduces maintenance costs by preventing unnecessary trips while maintaining fast response to true faults. The 3-pole LG frame supports synchronized protection in three-phase DC PV circuits and simplifies replacement in legacy systems. Interrupt rating of 50 kAIC at 600 Vac provides a broad fault-current withstand margin, increasing system resilience against short circuits. In utility-grade installations, this rating supports compliance with safety standards while enabling safe operation under fault conditions. The panel-friendly design supports straightforward integration with standard lugs and accessories. Durability and compliance are reinforced by UL 489 certification and Eaton's warranty policy. The rugged construction and documented performance translate into lower lifecycle costs and predictable maintenance cycles. For installers and integrators, the product's documented technical data, including UPC and model specifics, streamline procurement and service planning.