What Is an IP68 Waterproof Junction Box — and Why Does It Matter More Than IP65 or IP67?
An IP68 waterproof junction box is an enclosure tested to EN 60670-22:2006 and EN IEC 60670-1:2021/A11:2021 — the European standards specifically written for junction boxes — for continuous submersion at manufacturer-declared depth and duration. Not all IP68 products are equal: test depth and time vary widely. For permanent German outdoor installations, the correct specification is an IP68 waterproof junction box at 4 meters / 120 hours, with TÜV, CE, SAA, and RoHS certification.