This power combination box is for connecting Force-H3 series strings in parallel. Features: Input strings of up to 6 to output string of 1 Nominal Voltage (V): 1000VDC Nominal input current per terminal: 50A Output terminal: Cable connection (O-ring) M25*1.5 Design life: 15+ Years (25°C / 77°F) Reference standard: UL1741 Comes with: Black power cable, 4AWG, SC25-8, 2m Red power cable, 4AWG, SC25-8, 2m Grounding cable 6AWG, 1m, yellow-green Expansion bolts Fixing screws Lock key Manual Please follow the instructions carefully during the installation process.