WAGO Jumper bars, also known as jumper wires or simply jumpers, are used to connect consecutive and non-consecutive terminal blocks that are within the same spacing. They consist of metal tubes which make contact with the internal connector bar in the terminal block. They have a variety of purposes:

• Temporary Connections in Prototyping: In breadboarding and prototyping, jumper bars allow engineers and hobbyists to quickly and easily connect different points in a circuit without the need for soldering. This is useful for testing and debugging circuits before finalising the design.
• Bypassing Faulty Components: Jumper bars can be used to bypass faulty components or sections of a circuit. This is a quick way to diagnose problems or keep a circuit operational until a proper repair can be made.
• Configuration Changes: Some devices and circuit boards use jumper bars to enable or disable features or change configurations. By placing a jumper bar on specific pins, users can alter the behaviour of the circuit, such as selecting between different power sources, clock speeds, or operational modes.
• Connecting Multiple Components: In certain setups, jumper bars are used to connect multiple components that need to share common connections, such as grounding multiple components to the same ground point or distributing power.
• Debugging and Testing: Jumper bars provide an easy way to isolate parts of a circuit for testing and measurement. By removing a jumper, a section of the circuit can be deactivated or separated from the rest of the circuit for closer examination.