These are NEMA 3R enclosures that give a flashed roof penetration for the array cables. They are all made from 18 gauge galvanized steel with a powder coated finish providing a professional look. All have a dual ground lug, a 6" (150 mm) universal DIN rail to mount fuse holders or terminal blocks. There are three roof deck knockouts (½", ¾" and 1"), and dimples to center a punch or drill for entry conduit or fittings, as well as a built-in roof flashing.
To make pass-through connections inside a SolaDeck, use one or more 2-String Pass-Thru Kits. This kit has 4 DIN mount terminals that can be used with #6 to #16 AWG wire, and hardware to hold them in place. Each terminal is 10 mm wide.
The SD-0786-41 is listed as a DC combiner and can be used with terminals or fuse holders for array DC wiring. For combining circuits, use up to 4 DIN mount fuse holders, each 18 mm wide, a positive and negative busbar, and a 2-string pass thru kit to combine up to 4 module strings. Or use the 2-position positive and negative busbars for combining 2 strings, with or without fuses. Fuses are not included, so order the appropriate fuses. These are Listed to UL 1741 for Photovoltaic Combiner Enclosures.
The SD-0786-3R is listed as a j-box and can be used for pass through wiring of both DC and AC circuits, but without combining circuits. Both SD-0786 are only 2.5" deep and can fit under the array.
The SD-0760-41 AD is listed as a combiner for both AC and DC circuits and has a bump in the lid to accommodate DIN mount DC or AC breakers. The SD-0766-41 AD is 6" deep for use on tile roofs. It comes with a 30" square soft aluminum flashing and can be used as both AC and DC combiner or pass through. These are Listed to UL 1741 for Photovoltaic Combiner Enclosures.