Cable tray insert connector

Cable tray connection inserts are components used to join, secure, or protect cables within a tray system, ensuring stability, safety, and smooth cable routing.

Types of Cable Tray Connection Inserts

1. Mechanical Connectors and Splice Plates Cable trays are commonly connected using straight connectors, angle connectors, and joint plates. Straight connectors join trays lengthwise, while angle connectors allow horizontal or vertical changes in direction. Joint plates are often clamped or bolted between tray sections to prevent bending and maintain load stability, especially for wider trays over 400 mm. Fastening typically uses truss-head bolts and combination nuts, with screws inserted from the inner side to avoid cable damage . 2. Quick Connect Systems Some manufacturers offer snap, slide, or twist connectors that require minimal tools. These systems allow faster installation and are often brand-specific, ideal for large projects where speed is critical . 3. Plastic Inserts for Sensitive Cables Plastic inserts, usually made of polypropylene, create a smooth bottom for delicate cables, reducing abrasion and mechanical stress. They are available in rolls with or without side walls and can be cut to fit any tray length. These inserts are particularly useful in Cablofil wire mesh trays and other open-bottom systems .

Installation Considerations

• Alignment and Support: Ensure trays are level and properly supported, typically 1.5 to 3 meters apart depending on load and tray type .
• Fastening: Always pass screws through the inner side of the tray and secure with nuts on the outer side to prevent cable damage .
• Load Management: Use joint plates for trays wider than 400 mm to avoid transverse bending. For trays up to 300 mm, joint plates are optional .
• Safety: Wear protective gloves to avoid cuts from tray edges and ensure only trained personnel perform electrical work .

Benefits of Using Connection Inserts

• Safety: Prevents cables from dropping or rubbing, reducing fire and shock risks.
• System Stability: Maintains structural integrity under full cable load.
• Durability: Ensures long-term performance and reduces maintenance costs.
• Ease of Maintenance: Facilitates adding or moving cables without compromising the tray system . By selecting the appropriate mechanical or plastic insert and following proper installation practices, cable tray systems can achieve optimal safety, stability, and longevity.