Question: What is the "response speed" of the self-recovery fuse? How long will the "recovery speed" take?
Answer: The response speed of self-recovery fuse is related to temperature, fault current and heat dissipation of equipment. The higher the ambient temperature, the greater the fault current of the equipment, and the faster the response speed of the self-recovery fuse, generally within a few seconds; The better the heat dissipation, the slower the reaction speed, generally about 1 minute. The same device can work for several milliseconds to several seconds under different conditions.
For example, at room temperature, under the standard measurement specification, the action time of the fuse under the current force of 6 amps is 1 millisecond, and that under the current force of 1 amp is 200 milliseconds.
Therefore, the electronic response speed is not constant, but determined according to the cooperative equipment and the actual situation. For devices with millisecond failure, it is necessary to know whether it is current or voltage failure, what the failure parameters are, and other performance requirements for protection devices. In this way, we can know what kind of fuse is most suitable.
