HR17B series fuse-type disconnector with load operation, suitable for rated current 40A ~ 1600A, there are 1 group, 2 groups, 3 groups, 4 groups ofpoints. It can be mounted on the busbar , can also be installed in the fixed plate; it provides the upper and lower input and output structure, with a knife-edge introduction and arc-control device; and theswitch cover has iregular closed detection holes, built-in signal switch, detection switch. it can be optional fuse monitor, can also be used as knife switch. The switch with beautiful shape, novel and concision, it meets the IEC60947-3, GB14048.3 standards.