The SIPROTEC 7SS85 busbar protection is a selective, safe, and fast protection against busbar short circuits in medium-voltage systems, high-voltage systems, and systems for very high voltage with different busbar configurations. Selection of the device base functionalities (significant features) and the modular hardware structure allow optimum adaptation of the SIPROTEC 7SS85 to a large variety of system configurations and functional requirements up to a complete station protection.