The disconnecting combiner boxes are a way of combining up to 16 PV strings AND a Rapid Shutdown compliant disconnect at the PV array.
MidNite Solar has 4, 6, 8 and 16 string Disconnecting PV Combiners. The 8 and 16 string boxes have two switched output circuits, supporting two charge controllers or grid tied string inverters.
The necessary MSPSB Power Supply Board comes factory installed, making it a plug and play Rapid Disconnect Solution. All boxes are powder coated aluminum with stainless hardware. One MidNite SPD Surge Protection Device is included with these boxes (a 2nd SPD is recommended for dual output configurations). 600v fuse holders, fuses, strain reliefs and hole plugs are also included.
3R models are a NEMA 3R weatherproof enclosure. 4X models are a NEMA 4X waterproof enclosure.