Drop-out Fuse Cutout

Drop-out fuse cutout and load switching fuse cutout are outdoor high voltage protecting device, they are connected with the incoming feeder of the distribution transformer or distribution lines. These are primarly used to protect transformers or lines from short circuits and overloads and switching currents.The drop-out fuse unit is composed of insulator supports and a fuse tube,static contacts is fixed on two sides of insulator support and moving contact is installed on two ends of fuse tube,the interior of the fuse tube is the extinguishing tube, the exterior is made of phenolic compound paper tube or epoxy glass, load switching cutout is relaxed once the fuse elements melt. the cutout is now in the open position, the operator need to switch the current off, then with an issulated operating b ar, the moving contact can be pulled off.the main contact and auxiliary contact is connected.