WAGO’s TOPJOB® S Installation Rail-Mount Terminal Blocks offer an end-to-end rail-mount terminal block system that covers all your bases, from power supply to distribution. With their wide range of features, they are the ideal interface for safe, secure, With their wide range of features, they are the ideal interface for safe, secure, state-of-the-art buildings.state-of-the-art buildings. A perfect example: the headquarters of the Joachim Herz Foundation in Hamburg.