Horizontal elbows provide directional transitions in cable tray systems, with 4"–7" rail heights, 6"–36" widths, and 12"–36" radii. Available in ladder and solid bottom aluminum designs. Devices that are used to supplement the function of straight sections and fittings, and include such items as drop outs, covers, conduit adapters, hold-down devices and dividers. The basic types of connectors are: A device that is. ventilation to heat producing cable such as power communication and other with the same or different width of the cable run. These fitting are including: elbow, horizontal cross, vertical inside. I hereby consent to the processing of my personal data in accordance with EU Regulation no.