Purpose of jumper wires in distribution boxes
In power plants and distribution systems, copper jumpers connect busbars and other components to ensure a steady flow of electricity. [1m:6s] Jumpers are specifically designed for this purpose but are not required in many cases. DIN rail mounted terminal blocks are found in nearly every industrial control panel. This provides a convenient way to expand the number of wires attached to a single node. While its definition is straightforward, its application is the bedrock of modern electronics development and experimentation. A jump wire (also known as jumper, jumper wire, DuPont wire) is an electrical wire, or group of them in a cable, with a connector or pin at each end (or sometimes without them – simply "tinned"), which is normally used to interconnect the components of a breadboard or other prototype or test.
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