The HR17B series fuse type isolation switch can be operated with load and is suitable for rated currents of 40A-630A. It can be divided into 2 or 3 groups. It can be enclosed and hung on the busbar without punching, or fixed and installed on the busbar with punching, and provides an input and output structure at the upper and lower ends, with a knife edge introduction and arc extinguishing device; The switch cover is equipped with a closed detection hole, with built-in signal switch and detection switch. It can be equipped with a fuse monitor or used as a knife switch. The product complies with IEC60947-3 and GB/T14048.3 standards.

Fuse type isolation switch (fixed type), also known as knife fuse switch, refers to a knife switch with a fuse, and a low-voltage knife fuse switch has dual functions of knife switch and fuse. Due to the fact that the fuse equipped with the knife fuse switch is a closed tube fuse with filler, it has a high breaking capacity. If the current is too high and the fuse is blown, it is necessary to replace the fuse in a timely manner to fuse the load and prevent electric shock.

The HR17B series fuse type isolation switch is suitable for AC 50Hz with a rated voltage of 660V. The high short-circuit current circuit with an agreed heating current of 630A has an upper and lower input and output structure, with a knife edge introduction and arc extinguishing device. It can be operated under load and used as a power switch, isolation switch, and emergency switch for current protection!