As a classic manual electrical switch, the Spdt Knife Switch is still widely used in fields such as low-voltage power distribution and industrial control, thanks to its characteristics of simple structure and direct functionality, as well as its reliable isolation, convenient operation, strong adaptability and cost-effectiveness.
How Spdt Knife Switch Work?
A Knife Switch is a manually operated low-voltage electrical switch with a simple structure. Its core operating principle revolves around “achieving circuit connection and disconnection through mechanical operation,” and essentially, it controls the current flow path by means of the contact or separation between a movable “knife-shaped contact” and fixed “stationary contacts.”
Application Scope
lt is applicable to electric power line with AC 50Hz,rated voltage up to 1000V and current at or below 6000A as load-free operation to isolate power supply
