The W series screw clamp terminals are suitable for Top Hat DIN Rail and manufactured from nylon 6.6 which has a continuous temperature rating of 120°C (180°C short term). They are self-extinguishing to UL94V-0 and free from cadmium and halogen. Current bars are constructed from 10 mm electrolytic copper to ensure a current loading more than nominal rating. Terminals are suitable for mounting on symmetric Top Hat rail only (BS5584:1978, EN 50022) and are touch proof in accordance with BS 3042.