A wire harness is a collection of electrical cables, wires, and subassemblies encapsulated by exterior sheaths that are utilized to connect devices to their power source. The sheaths protect the internal components from physical damage and moisture and keep them organized. Some of the key components of wire harnesses include connectors, terminals, locks, wires, cables, and outer coverings. When selecting a wire harness for your applications, you must take into consideration the capacities of each component to ensure your devices are powered safely. As such, there are several types of wire harness components, all of which we will outline below.