Abstract: A cable tray junction assembly for attaching together a plurality of cable supporting rails including a central body having a peripherally extending vertical surface having a plurality of apertures. The central body forming a horizontal plane and having a vertical axis extending there through. The junction assembly further including a coupler for joining a cable supporting rail to the central body. The coupler including a rail connecting portion adapted to be secured to the rail and a central body connecting portion adapted to be secured to the vertical surface of the central body. The central body connecting portion including a lateral extent that engages the vertical surface such that the engagement between the lateral extent and the vertical surface resists rotation about the vertical axis.

Abstract: A cable tray assembly for supporting cables, wires and the like. The assembly includes an elongate rail including an open channel extending along the length thereof. The assembly further includes at least one support member. Finally, the assembly includes a locking connector cooperating with the support member. The connector is sized and configured for insertion into the channel whereby insertion of the connector into the channel simultaneously locates the member at a position along the rail and fixedly secures the arm to the rail in the absence of fastening hardware.