MaxGuard electronic load monitoring (ELM) devices combined with distribution terminal blocks can be customized to provide selective load protection in 24-Vdc power distributed systems for industrial automation applications. The modular system is designed to meet specific requirements for automation control panels. It contains three main cross-connection channels—positive, negative and internal signaling. This design increases the number of possible contacts from the ELM device outputs (positive and negative) into the terminal blocks, providing efficient connections for the distribution board loads, as well as reduced wiring.