Eaton DCU1105FRM Heavy Duty DC Disconnect - UL Listed

The 400 A amperage rating and single 1-circuit configuration enable a compact, centralized DC isolation point for larger PV strings, reducing wiring complexity and lifecycle costs while simplifying commissioning. This directly translates to improved maintenance planning and faster fault isolation in utility-scale and commercial PV projects. The NEMA 3R outdoor enclosure protects sensitive components from rain, dust, and temperature swings, delivering predictable performance and lower replacement costs in rooftop installations. Fusible protection limits fault energy and minimizes arc propagation, enhancing safety and reducing the likelihood of collateral damage during a fault. The painted galvanized steel enclosure adds corrosion resistance and structural durability, supporting long service life in harsh environments and reducing total cost of ownership. UL Listed certification supports procurement standards and helps satisfy regulatory and safety documentation across sites. The unit’s documented dimensions and weight signal a robust, install-ready package that integrates with standard electrical protection schemes and 1000 VDC systems, ensuring compatibility with common solar inverters and combiners. A one-year warranty provides post-sale support and risk mitigation for project teams, while its 400 A/1000 VDC capability aligns with typical mid-to-large PV deployments, enabling scalable protection as array inventories grow.