AHDM04-18-20SN is a DuraMate™ AHDM series environmentally-sealed, multi-pin circular connector manufactured by Amphenol Sine Systems for demanding industrial and off-road applications. The connector features a Shell Size 18 metal construction with integrated wide thread coupling system and accommodates 20 contact positions with support for multiple contact sizes (4, 8, 12, 16, and 20) rated at various amperage levels (100A, 60A, 25A, 13A, and 7.5A respectively). Operating at 250V, this connector is designed to withstand harsh environmental conditions and provides reliable performance in agricultural, industrial automation, and heavy equipment applications where robust, sealed connections are essential.