Wiring Duct Selection Guide

Step 1: Calculate Fill Capacity

Determine total cross-sectional area of all wires. Select duct with 40-60% fill (allows future expansion). For control panels, 40% fill is standard per NFPA 79.

Step 2: Choose Slot Pattern

Narrow finger: dense wiring, clean look. Wide finger: large cables, easy access. Solid wall: maximum protection, no side exit. The finger design determines how easily wires can enter/exit the duct.

Step 3: Select Material

PVC: standard, economical, UL94 V-0. Polyphenylene Oxide (PPO): higher temperature, low smoke. Polycarbonate: transparent, high impact. Halogen-free: LSZH applications.

Step 4: Determine Mounting

Standard base: screw/rivet mount. Adhesive base: no-drill installation. DIN rail mount: quick installation/removal. Snap-together: modular assembly.

Step 5: Check Standards

UL 1565: recognized component. CSA C22.2: Canadian standard. IEC 61084: international standard. EN 50085: European standard. Verify flammability rating matches your panel requirements (V-0, V-2, HB).

Quick Tips

Always leave 25-30% spare capacity for future modifications. Separate power and signal cables in different ducts or with dividers. Use duct covers to maintain IP rating of the enclosure.

FAQ

What if my application does not fit these categories?

Contact our engineering team with your specific requirements. We provide free application consulting.

Need Help Choosing the Right Product?

Our engineers can help you select the optimal cable tie for your application.