Eaton DCU3061FPM DC Disconnect - NEMA 4, 600 VDC

The 30A, 3-circuit design provides targeted protection for multiple PV strings within a single enclosure. This consolidation reduces hardware footprint and simplifies wire management, translating to lower material and labor costs on site. It’s well-suited for small to mid-sized solar arrays in rooftop, carport, or ground-mount installations. The NEMA 4 enclosure, constructed from painted galvanized steel, delivers rugged outdoor durability and reliable seal against dust and moisture. This robustness supports uptime in harsh environments, including roof edges, rain-exposed sites, and coverage by weather enclosures. Quick-access doors and straightforward mounting features streamline field service. Fusible protection provides clean, predictable disconnection, aiding safe maintenance and code-compliant NEC 690 protection. The design supports selectivity with integrated fusing, reducing fault impact on other system sections. For installers, standardized fuse configurations mean fewer customization steps on site. A 600 VDC maximum per pole accommodates modern high-voltage PV strings, enabling fewer parallel runs and simpler conductor routing. The rating also supports photovoltaic backfeed protection strategies and aligns with typical solar array design practices. It remains responsive to system transients when paired with appropriate PPE and wiring methods. Main lug capacity accommodates #14-#2 AWG lugs and #14-1/0 AWG solid returns, offering wiring flexibility across copper and aluminum conductors. This reduces adapter use and accelerates panel-in, string-in, and combiner-box wiring. The unit’s configurable inlet and outlet punchdowns support common field termination schemes. Certifications including NEC 690 compliance, UL 1741, and UL 98B enclosure safety standards provide a clear path to regulatory acceptance and safe operation. Industry alignment simplifies project approvals, reduces risk during audits, and enhances installer confidence on site. For manufacturers, this translates to faster procurement cycles and a longer lifecycle.