| 摘要 |
A fuse switch includes a fuse element having a plurality of radiating arms, each arm being positioned, in its turn, above circuit contacts in the switch. The fuse is mounted for rotation, and is controlled by a rachet wheel drive mechanism to change its position. An indication lamp is provided to show when the circuit is broken and to light the switch to indicate the need to repair the fuse when the fuse is burned down due to overload of the circuits. To change the fuse, one merely pushes a drive link so that a pawl of the link drives the rachet wheel, and thus the radiating fuse to rotate another pair of fuse radiating arms into position thereby continuing the power supply. At the same time, the indication lamp is shut off.
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