D24 PV-Kabel-Dachdurchführung – mechanischer Kabelschutz fürs Ziegeldach

Roof penetration for PV cables: Abrasion protection for solar installers

The Real Risk: Cable Chafing Through the Tile

If the solar cable is routed through the roof between the tiles, it rests on the sharp edge of the tile. With every temperature movement and every gust of wind, the cable rubs minimally – over the years, the insulation chafes through. Consequence: core breakage, short circuit, in the worst case, fire risk. For you as a business, this means a warranty claim years after installation.

What the Gland Is Made For – and What It Isn't

Our PV roof gland is pure abrasion protection: It sits between the cable and the tile, so the cable no longer rests on the sharp edge. The insulation remains permanently protected. It is not a roof seal – the tile covering provides the sealing as always. The gland provides exactly the protection this one spot needs.

Installation in Practice

  1. Lift the tile and select the gland position.
  2. Slightly grind down the tile at the bearing edge so that the gland sits cleanly.
  3. Insert the cable – without disassembling the MC4 connector – and hook in the gland.
  4. Replace the tile. The cable is protected – done.

Why TPU

TPU is flexible, impact and tear resistant, and remains elastic even in the cold. This is exactly what a component needs that absorbs the movement between the cable and the tile edge for years without becoming brittle. Made in Germany.

Common Mistakes

Routing the cable unprotected through the tile. Saves five minutes – later costs a warranty call-out.

Choosing the wrong size. 105 mm covers most tiles, 125/150 mm for higher profiles.

FAQ

Does the gland seal the roof? No – it's abrasion protection for the cable. The sealing comes from the tile covering.

Do I have to remove the MC4 connector? No, the cable is inserted with the connector.

Are there samples? Yes, we will gladly send you a free sample for testing.

Conclusion

The gland protects the cable exactly where it would otherwise chafe through – that's the difference between a clean installation and a warranty claim in three years. View bulk conditions or request a sample.


Are you a specialist company? As a solar installer, roofer, or electrical company, you can order our PV roof glands (abrasion protection made of TPU, Made in Germany) at B2B tiered prices. → Register as a B2B partner & request bulk order now