HR17B Fuse Type Isolationg Switch
It's applicable in the circuit of rated
voltage AC 660V and below, rated current AC160A-630A, rated frequency of 50Hz.
1) Suitable for use in distribution circuits with rated working voltage up to AC690V, rated working current up to 630A, and rated frequency of 50Hz
2) Mainly used in distribution circuits and motor circuits where short-circuit currentis high, as power supply switches, isolating switches, emergency switches and circuit protectors
3) Not generally used to turn on or off a single motor directly