Abstract: An electrical junction box for tool-less installation of a plurality of power cables. The junction box comprises a rectangular shaped box, a pair of opposite end walls having an upper side and a lower side and a pair of opposite side walls, a plurality of notches in the upper side of the end wall, a plurality of holes in at least one side wall, a box cover having a distal end and a proximal end, a pair of hook members on the lower side of the end wall to hang the box cover from the rectangular shaped box in an open state, and a clamping member fixed across the upper side of the end wall to secure the box cover to the rectangular shaped box. The power cable is pushed to install in at least one notch having smooth edges which makes the power cable justly fit into the notch.