The Marathon/Kulka 670A-GP series terminal blocks are designed for robust and reliable electrical connections in industrial environments. These double-row blocks offer a closed-back design for enhanced safety and feature #6-32 binder head screws for secure fastening. The terminals are constructed from plated brass, and the base is made of phenolic material rated for 150°C UL RTI. Available with various hardware options including quick connect and solder terminals, these blocks accommodate a wide range of wire gauges and are suitable for applications requiring high voltage and current handling. They are UL Recognized and CSA Certified, ensuring compliance with industry standards.