A jumper with safety fuse. The jumper includes first and second conducting wires and a fuse assembly interposed therebetween and connected thereto. A connector assembly is connected to each of the first and second conducting wires, which includes a plug section and a receptacle section. The plug section includes a body, a lead connector extending from a top of the body, and a plug extending from a base of the body. The receptacle section includes a socket configured to receive the plug and conduct electricity to its corresponding conducting wire, thereby forming an electrical connection therebetween. The jumper may be provided in a jumper kit with jumpers of different gauges and a set of interchangeable lead connectors.