Marathon/Kulka 600RJS-15 RJ Jumpers are essential accessories for terminal blocks, ensuring secure and reliable electrical connections. Constructed from nickel-plated brass, these jumpers offer excellent conductivity and corrosion resistance. They are designed to be used with 670A RZ and 599 series terminal blocks, and are not necessarily supplied flat. The dimensions vary slightly depending on the specific model, but all are applicable after the bus is torqued down.