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Load switch

Dec 07, 2016

Load switch:load switch has a simple arc extinguishing device, arc extinguishing media generally use air, can be switched on and off a certain current and over current, but cannot break the short-circuit current, cannot be used to cut short circuit fault. Load switches are not allowed to replace circuit breakers, if the load switch is used, it must be used in conjunction with the high voltage fuse(In fact, the fuse and load switch are used in series, which is used as a simple overload protection to reduce the cost of the project.).  Load switch and the isolation switch are similar: there is a clear gap between the open, it is very easy to determine the circuit is in a state of connection or disconnection.