Source: https://raytronics.ch/phocadownloadpap/manchons_a_braser/Manchons%20tanche%20et%20RoHS%20et%20ELV%20conforme%20sans%20et%20avec%20conducteur%20mis%20%20la%20terre%20B-155-3801%20%20B-155-3813%20-55C%20%20125C.pdf