The HD30 Series have a current capability of 100 AMPs and are rated at -67°F to 257°F. They come with a silicone seal to create connections that are environmentally sealed. The terminals are nickel plated copper alloy (gold plated are optional). They offer arrangements of 3 to 9 cavities. The HD30 Series connectors accept contact sizes of 4, 8, 12, 16, and 20. In-line or flange mount, Cavity arrangements: 2,6,7,8,9,14,16,18,19,20,21,23,29,31,33,35,47.