The RL60-300 with PTC Resettable Fuses Through Hole RoHS manufactured by Ruilongyuan is an electronic part that contains an internal actuating mechanism that operates on an open-circuit basis to automatically deactivate power to connected circuits when a fault condition occurs. The polymeric positive temperature coefficient (PPTC) resettable fuse provides overcurrent protection up to 300V, with a current rating of 60A. This part is RoHS compliant, meaning that it is made without the use of any hazardous materials such as lead, cadmium, mercury, hexavalent chromium, and other types of dangerous chemicals. It is a Through Hole device, meaning that it requires a through-hole in the PCB to install the part, and it can be used to protect circuits from voltage spikes, short circuits, and overloads.