Overview
The HR5 series fuse type knife switch (hereinafter referred to as the switch) is mainly used in distribution circuits and motor circuits with high short-circuit currents up to 630A, rated AC 400V and 660V (45-62Hz), as a power switch, emergency switch, and circuit protection, but generally not used for directly opening and closing a single motor
The switch complies with IEC60947-3 and GB14048.3 standards

Main technical parameters
Rated insulation voltage: 690V
Rated working voltage: 400V, 660V two types
Rated working current: 380V: 100A, 200A, 400A, 630A, four types 660V: 100A, 200A, 315A, 425A, four types
The on/off capability and rated short-circuit current of the switch (see Table 1)
The mechanical lifespan 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, 630A) respectively. The connection and disconnection conditions are as shown in Table 2
The rated working voltage of the auxiliary switch (LXI9K) is AC 400V, the rated heating current is 6A, and the rated control capacity is 300VA