Combination switch

A combination switch is provided for a high-speed oven, the oven having a door. The combination switch has a rotatable cam that is rotated when the door of the oven is moved between a closed position and an open position. The cam has at least one lobe for engaging at least one safety-switch for actuation by the at least one lobe of the cam as the cam rotates. The at least one safety switch controls operation of at least a portion of the oven. A locking latch is selectively moveable between an engaged position, in which the latch engages the cam to limit rotation of the cam and thereby prevent opening of the door, and a disengaged position, in which the latch does not engage the cam and thereby allows opening of the door.