Cable tray clamp classification

Common cable tray clamp types include hold-down clamps, Z clamps, C-clamps, and conduit clamps, each designed for specific mounting and support applications.Hold-Down ClampsHold-down clamps are used t...

Cable tray clamp classification

Common cable tray clamp types include hold-down clamps, Z clamps, C-clamps, and conduit clamps, each designed for specific mounting and support applications.

Hold-Down Clamps

Hold-down clamps are used to secure cable trays to structural elements, preventing movement and maintaining cable organization. They are available in aluminum, galvanized steel, or carbon steel, and can be installed on Snap Track trays or other tray systems. These clamps are often used when the tray's pre-drilled hole pattern cannot be utilized, and typically require two clamps per side rail for proper anchoring .

Z Clamps (or Hold-Down Z Clamps)

Also known as Z clamps, these are commonly used with GRP cable trays or ladders. They feature a single clearance slot for easy adjustment to match pre-drilled fixing holes in the supporting structure. Z clamps are quick to install using standard hex bolts, nuts, and washers, and are suitable for all GRP tray profiles .

C-Clamps

C-clamps are designed to support hanger rods on I-beams, wide flange beams, or angles. They are typically made of unfinished iron and can handle loads up to 400 lbs. These clamps allow direct attachment of cable trays to beams without drilling, using set screws to secure the tray .

Conduit Clamps (LCC Series)

Conduit clamps, such as the LCC and LCCF series, are used to attach metal conduit (rigid steel, aluminum, IMC, or EMT) to cable trays, providing mechanical support and grounding continuity. They can be mounted on inside or outside tray flanges, accommodate a wide range of conduit sizes, and allow conduit to exit the tray at any angle without disassembly .

Summary

  • Hold-Down Clamps: Anchor trays to structural elements; aluminum or steel; used when hole patterns are limited.
  • Z Clamps: Quick-adjust GRP tray clamps; single slot for easy installation.
  • C-Clamps: Attach trays to beams; heavy-duty support; no drilling required.
  • Conduit Clamps (LCC/LCCF): Secure conduit to trays; ensure grounding; adjustable angles.

Choosing the right clamp depends on tray material, mounting surface, load requirements, and whether conduit support is needed. Proper selection ensures stability, safety, and compliance with installation standards.

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