a series sliding , single pole contact switch including a generally slotted captivating input contact pin , at least one generally slotted captivating output contact pin , a sliding contact mechanism including a sliding knife blade contact and a switching assembly . the axially moveable sliding knife blade contact is always in captivated contact with the slotted captivating input contact pin , and the switching assembly is biased to place one end of the sliding knife blade contact in engagement with one of the slotted captivating output contact pins or to brace the sliding knife contact in the opposite direction . the switch may be gang connected to other switches , and may be switched by a single switching assembly . the switch is sealed to insure the water tight integrity of the unit .