A vertical interlock system, comprising: a power supply generating a bypass signal; a first breaker connected to the power supply and controlled by a first switch; a second breaker connected to the power supply and controlled by a second switch, the second breaker being located above the first breaker; a control lever having a first orientation and a second orientation; and a fixer for locking the control lever in either the first or second orientation, wherein when the control lever is in the first orientation the first switch is locked closed, when the control lever is in the second orientation the second switch is locked closed position, when the first switch is open, the control lever cannot be placed in the first orientation, and when the second switch is open, the control lever cannot be placed in the second orientation.