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RJ Solar Rooftop Junction Box, 8x8x3.5, Black, Polycarbonate

  • Designed specifically for solar installations
  • Light weight
  • Non-metallic; will not rust or corrode
  • Easy to drill and modify
  • Captive screws in cover will not fall out
  • Minimal design, small footprint
  • All roof penetrations cover by NEMA 4X enclosure
  • Dark Graphite color blends in with any rooftop
  • Cost effective
  • UV stabilized
  • Impact resistant
  • Flashing dimension are approximately 13x18 (330x457mm)
  • Ground bar included in standard offering
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Catalog #:


RJ Solar Rooftop Junction Box


  • Height: 8 in / 203 mm
  • Width: 8 in / 203 mm
  • Depth: 3.5 in / 89 mm
  • Protection Rating: NEMA Type 3; NEMA Type 3R; NEMA Type 4; NEMA Type 4X
  • Material: Polycarbonate
  • Finish: Smooth Matte
  • Color: Graphite Black
  • Color Code: RAL 9011
  • Thickness: 0.13 in / 3.3 mm
  • Weight: 2.73 lb


The RJ rooftop junction box with flashing provides a safe, secure, and NEMA 4X watertight solution for the Solar installer to penetrate the roof for attic runs and make the proper wire connections. The product is designed to be simple to install, minimize time on the roof, while additionally providing higher levels of protection for the point of penetration in the roof as well as electrical connections inside the junction box.



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