Patent ID: 7238898

Claim:
A switch assembly for an electrical panel to selectively receive electrical power from one of a first power supply and a second power supply, comprising: a transfer switch mounted on the electrical panel and operable to electrically connect the electrical panel to receive electrical power from the second electrical power supply when electrical power is interrupted from first power supply; an indicator light mounted on the electrical panel and operable to illuminate with electrical power from the first electrical power supply while the transfer switch is positioned to receive electrical power from the second electrical power supply; a light switch mounted on the electrical panel and operable to selectively interrupt electrical connection of the indicator light to the first power supply; and an interlock member that interconnects the light switch and the transfer switch, wherein movement of the interlock member so as to electrically connect the electrical panel to receive electrical power from the first power supply simultaneously moves the light switch to a position that interrupts illumination of the indicator light.