Cable tray clip specifications

Cable tray clips are designed to secure, suspend, or hold cable trays in place, with specifications varying by type, material, load capacity, and installation method.Types of Cable Tray Clips1. Hanging Clips: Hanging clips attach to the sides of cable trays to suspend them from threaded rods, typically 1/4", 3/8", or 1/2" in diameter. Each clip requires two nuts and two washers for installation, which are usually sold separately. These clips support wire mesh trays and allow for configurations such as curves, slopes, and tees. They are lightweight, provide good ventilation, and prevent sagging, supporting up to 280 lbs. per foot when spaced every 8 feet . 2. Hold-Down Clamps (Z-Clamps): Hold-down clamps, also called Z-clamps, secure cable trays or ladders to supporting structures. They feature a single clearance slot for easy adjustment to match pre-drilled holes. These clamps are suitable for GRP and metal trays and are available for various tray profiles. They are quick to install and provide a secure hold . 3. Utility Clips / Light Duty Brackets: Utility clips, such as Walraven Britclips®, are designed for light-duty applications. They provide a simple and reliable method to attach cable trays to support structures, suitable for smaller or less heavily loaded installations . 4. Trapeze Hanging Clips: Trapeze clips are used for multi-tier installations, allowing threaded rods to extend past the clip. They are compatible with wire mesh trays and meet RoHS material restrictions. Installation involves locking tabs with pliers, and threaded rods, nuts, and washers are sold separately . 5. Heavy-Duty Hold-Down Clips / Expansion Guides: These clips secure flange-in or ladder-style trays to lower support channels or brackets. They can also function as expansion guides to accommodate thermal movement. Typically, 1/2" hardware is used, and some designs allow two trays to be fastened side by side with a single clip. They are made from aluminum or galvanized steel and are suitable for high-load applications, including bridge or industrial installations .Material and FinishZinc-plated steel: Offers good corrosion resistance for general applications .Aluminum: Lightweight and corrosion-resistant, often used in heavy-duty or outdoor applications .GRP (Glass Reinforced Plastic): Used for non-metallic trays, providing chemical resistance and electrical insulation .Installation ConsiderationsEnsure compatibility with tray width and type.Use appropriate threaded rods, nuts, and washers as specified by the clip manufacturer.Maintain proper spacing to support the tray load and prevent sagging.For multi-tier or expansion applications, select clips that allow rod extension or thermal movement.Follow relevant standards such as NEMA VE-2 for expansion guides .Load CapacityLight-duty clips: Suitable for smaller trays and lower cable loads.Standard hanging clips: Support up to 280 lbs. per foot with proper spacing .Heavy-duty hold-down clips: Designed for high-load applications, often exceeding 1,100 lbs. in combination with standard suspension fittings . Cable tray clips are essential for safe, organized, and flexible cable management, and selecting the correct type ensures structural integrity, compliance with standards, and ease of installation.