Reducers: Used to connect trays of different widths, often when moving from a main run (wide) to a branch run (narrow). Splice Plates: Connect straight sections of tray together securely. Connecting cable trays correctly is essential for system safety, load stability, and long-term performance. The last two items can also be accomplished with a solid fixed barrier. Unlike a simple wire trough, which is typically a covered channel for shorter runs, cable trays provide a comprehensive support system for complex wiring paths over long. Is your cable tray system optimized for safety, dependability, space and cost savings? Cable tray (or cable ladder) systems are a popular alternative to electrical conduit systems, as they have an outstanding record for dependable service, design flexibility and cost savings in commercial and. OBO BETTERMANN has offered prod-ucts and solutions for electrical instal-lation for over 100 years. With our many years of experience, we are one of the leading manufacturers in this field. Establishing partnerships. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray.