The 1709-3 is a female to 2 male Tee Adapter, SHV series, with gold-plated contact, tee orientation. Working voltage is 3500Vrms. Insulator is made of teflon; gasket is silicone rubber; spring washer is berrylium copper; all other metal parts are brass. Center contact is in hard gold plating finish; spring washer is silver plated; and all other metal parts are in Kings tarnish resistant finish. This product has quick connect & disconnect bayonet coupling design. Outer contact ground connection is maintained through the center contact mating cycle. Recessed center contacts prevent shock hazards while unmated.