Fuse type Disconnector knife switch HR6-400/310 HR6-250/310 HR6-630/310 Item NO.: 1948839

Hr5 series fuse disconnector (hereinafter referred to as switch). It is mainly used for rated voltage AC 660V (45-62hz). Agreed heating current to 630A

In the distribution circuit and motor circuit with high short-circuit current, it is used as power switch, disconnector and emergency switch, and as circuit protection, but

Generally, it is not used to directly open and close a single motor. The performance of this product complies with iec947-3 and gb14048.3 standards.

Model meaning

Main technical parameters

Rated insulation voltage: 690V;

Rated working voltage: 380V and 660V;

Rated working current: 380V: 100A, 200A, 400A, 630A; 660V: 100A, 200A, 315A, 425a;

Making and breaking capacity and rated limiting short-circuit current of the switch (see Table 1);

The mechanical life of the switch is 3000 times (100a, 200a) and 1000 times (400A, 630A) respectively;

The electrical life of the switch is 600 times (100a, 200a) and 200 times (400A, 630) respectively. The on and off conditions are shown in Table 2;

The rated working voltage of auxiliary switch (lx19k) is AC 380V, the rated heating current is 5a, and the rated control capacity is 300VA.

Matching relationship between switch and fuse link

Note: when the switch is used in engine electrical appliances, the allowable melt rated current is greater than the agreed heating current of the switch