It is fixed by 4 internal openings outside the sealing area. With 7 elastic, self-sealing punched membranes for cable entry from side without any tools and 3 in base as well as 7 built-in M 25 threads for installation without nuts. Cable dia. 3 - 17 mm · 6 mm² terminals https://elecena.pl/product/29331840/wiska-10060533-junction-box-l-x-w-x-h-110-x-110-x-66-mm-white-ip66-ip67 2025-09-06 https://elecena.pl/product/29331840/wiska-10060533-junction-box-l-x-w-x-h-110-x-110-x-66-mm-white-ip66-ip67 2026-05-12