Patent ID: 8110759

Claim:
An electrical interlock assembly for controlling the supply of electrical power from a primary power supply and an alternate power supply, comprising: a mounting arrangement constructed to be fixed relative to a primary power switch and a power switch associated with an alternate power supply; and an interlock arrangement movably connected to the mounting arrangement and constructed to allow operation of one switch, either the primary power switch or the alternate power supply switch, while preventing the operation of the other switch, and wherein the interlock arrangement includes a neutral interlock slidable along a first axis for selectively enabling movement of two neutral switches, one neutral switch interconnected with the alternate power supply and another neutral switch interconnected with the primary power supply and further includes a first interlock slidable along a second axis perpendicular to the first axis and between a first position and a second position, and wherein the first interlock prevents movement of the two neutral switches when in the first position and permits movement of the two neutral switches when in the second position.