A junction cover for a photovoltaic (PV) panel module system that includes a PV panel mounting structure, a rail, a PV module with a junction box and wiring extending between the rail and the junction box. The junction cover encloses the wiring and includes a base section, a nose section and a pair of feet. The base section includes a plate with first and second side walls extending downwardly therefrom to first and second edges to define an interior with an interior surface. The nose section extends from the base section to an open end and has a top wall, two sides formed by the side walls of the base section and an open side. The feet are located on either side of the open end of the nose section and extend therefrom. The feet engage the rail to secure the junction cover in place to enclose the junction box and wiring.