Abstract: A fused disconnect switch assembly includes a pull out fuse assembly and a switch housing assembly. The fuse assembly includes a line side conducting portion, a load side conducting portion, and a fuse element therebetween. The switch housing assembly includes a fuse receptacle for receiving the fuse, a first contact assembly coupled to the line side conducting portion of the fuse and a second contact assembly coupled to the load side conducting portion of the fuse when the fuse is inserted into the receptacle. An open fuse indication device is in communication with conducting portions of the fuse, and an alarm terminal output extends from the switch assembly housing and is in communication with the open fuse indication device. The open fuse indication device provides local fuse state indication and the alarm terminal output facilitates remote fuse state indication when coupled to external circuitry.

Abstract: A power supply disconnect device includes a main housing that fits within a power supply distribution panel; a receptacle in the main housing; a detachable fuse holder that fits within the main housing receptacle; first electrical contacts within the main housing that are engagable with a fuse in the fuse holder when the fuse holder is inserted in the main housing receptacle; the fuse holder includes two parts that are moveable relative to each other, and which can be moved into an open position for receiving the fuse and into a closed position for securing the fuse in the fuse holder; and an alarm fuse connected to the first electrical contacts so as to provide an alarm in the event that a fuse in the fuse holder is blown, the alarm fuse being located in the receptacle in the main housing.