Why MC4 Connectors Become a Problem with Roof Penetrations
MC4 connectors are the standard in photovoltaic systems for wiring between modules and inverters. The connectors are designed to establish a reliable electrical connection and not to accidentally detach.
However, this very property becomes an obstacle when routing cables through the roof: conventional roof penetrations often have openings that are too small to allow the MC4 connector to pass through. The MC4 connectors must be disassembled before penetration and reassembled afterwards — which costs time and entails warranty risks.
The Solution: NEXCAPE® Roof Penetration with MC4 Pass-Through
The NEXCAPE® PV Cable Roof Penetration was specifically developed for this problem. The design allows PV cables with assembled MC4 connectors to be routed through the roof level — without disassembling the connectors.
The principle is simple: the penetration is hooked directly into the roof tile and offers sufficient space for PV cables (approx. Ø 7.5 mm) and grounding cables (up to Ø 16 mm) including the MC4 connectors.
Technical Data at a Glance
The NEXCAPE® roof penetration consists of UV-resistant technical plastic and is available in three lengths: 105 mm, 125 mm, and 150 mm. Installation in three steps: grind out roof tile if necessary, route cables, hook in penetration. No special tools required.
Time Savings in Practice
For electrical contractors and solar installers, the time spent on MC4 disassembly adds up considerably. The NEXCAPE® roof penetration eliminates this work step completely — shorter installation times, less risk due to faulty connector assembly, module warranty remains intact.
Packages for Professional Use
The NEXCAPE® PV cable roof penetration is available in practical packages: 20, 50, 100, 500, and 1,000 pieces. All products are manufactured in Germany.
Order now: Visit our PV cable roof penetrations in the shop or contact us at support@dachdurchfuehrung24.com or 07054 927999.
