Rail‑mounted PV junction box that connects to PV racking or MLPE mounts, sized to organize up to four DC/AC strings. Features a hinged lid, DIN rail, grounding lug, multiple screw bosses, and pre‑drilled guides on three sides for fast installation; supports up to two attic pass‑throughs. Integrated NEMA 3R‑compliant weep holes and a low‑profile form factor make it suitable for rail‑based or rail‑less systems across a wide range of roof types.