MidNite Solar MNPV4BY3 PV Combiner Box (1000VDC) The MNPV4BY3 is a high-voltage 1000VDC combiner box designed for both off-grid and grid-tie solar applications. Equipped with touch-safe fuse holders, it supports three independent PV outputs, each combining up to four PV strings (12 total strings). Its NEMA 3R, aluminum powder-coated enclosure and plastic deadfront provide durability and safety, while DIN rail-mounted fuseholders, integrated busbars, and multiple knockouts simplify installation. SGS Listed to UL standards, the MNPV4BY3 delivers reliable, high-capacity overcurrent protection for demanding solar setups. This is great for the Midnite Solar "The One" AIO inverter! Key Features Three Independent 4-String Outputs: Each busbar combines up to four strings, ideal for large or segmented PV arrays. 1000VDC Rating: Built to handle high-voltage solar installations for both off-grid and grid-tie systems. Touch-Safe Fuse Holders & Fuses Included: Ensures user safety and straightforward maintenance. Durable Powder-Coated Aluminum Enclosure: NEMA 3R rating stands up to outdoor conditions. 120A Per Busbar: Tin-plated copper busbars handle substantial current loads (max 30A fuse rating). Flexible Wiring & Knockouts: Accommodates cables from #6–#2/0 AWG on outputs, with #14–#6 AWG on inputs. UL-Listed for USA & Canada: Meets stringent safety and quality standards for reliable performance. Manual: Download Brochure: Download