Requirements for Wall-Mounted Cable Tray Installation Brackets

Wall-mounted cable tray brackets are installed using cantilever brackets, appropriate fasteners, and threaded rod suspensions in compliance with standard support construction guidelines.

Bracket Selection and Types

For wall mounting, cantilever brackets such as TKS, KTAG, or KTA with KAWG 12 bracket adapters are commonly used. Certain models like KTAF 200 and KTAF 300 allow wall mounting without additional threaded rods, simplifying installation . Brackets must be compatible with the cable tray width (typically 100–300 mm) and rail height (commonly 60 mm) to ensure proper support and load distribution .

Fastening and Support

Cable trays are secured to cantilever brackets using two mushroom head bolts (FLM 6X12 or FLM 6X16 F). For additional stability, an M10 threaded rod suspension can be anchored directly to the wall at a 45° angle using a WAWG 12 bracket adapter, or to the ceiling using a DBG 12 ceiling bracket . The back of the TKS profile should be stiffened with a spacer (TKSD 20) to maintain structural integrity.

Spacing and Load Considerations

Bracket spacing and fastener selection must comply with the maximum permissible cable dead weight and the fastening spacing defined in standards such as DIN 4102 Part 12. Proper spacing ensures that the cable tray can safely support the weight of installed cables and maintain circuit integrity . Cantilever brackets should be installed at intervals recommended by the manufacturer, typically every 1–1.5 meters depending on tray width and load.

Installation Guidelines

1. Mark the wall at the desired height and bracket locations, ensuring level alignment.
2. Attach brackets using approved fasteners suitable for the wall material (concrete, masonry, or steel).
3. Install spacers or stiffeners if required to reinforce the bracket profile.
4. Mount the cable tray onto the brackets and secure with mushroom head bolts.
5. Connect multiple trays using couplers (e.g., RVV 60 and RSLB base couplers) to maintain alignment and structural continuity .
6. Verify load and clearance to ensure compliance with building codes and fire protection requirements.

Safety and Compliance

• Only use fasteners verified for fire protection when required.
• Ensure installation is performed by qualified personnel familiar with electrical and structural standards .
• Avoid using cable trays as walkways or lifting apparatus to prevent personal injury and system damage . By following these guidelines, wall-mounted cable tray brackets can be installed safely, maintaining structural integrity, proper cable support, and compliance with relevant standards.