The CB-10H15-3R and CB-10H8-3R are low cost solutions to combine and fuse multiple high voltage PV arrays in industrial applications. The CB-12H20-3R and CB-12H20-4 are 12-circuit combiner boxes for use in residential and industrial applications. The CB-12H20-3R comes in a standard 3R enclosure, while the CB-12H20-4 comes in a watertight, NEMA 4 enclosure, allowing for different orientations.