WAGO Protect signal line arrestors are designed to protect sensitive railroad equipment from damaging overvoltage events. These devices utilize replaceable self-sacrificing modules, ensuring consistent and repeatable protection that can be easily maintained in the field without circuit interruption. The innovative CAGE CLAMP connections provide a secure and reliable termination, accommodating up to 6 AWG wire and meeting the rigorous demands of the railroad industry. They save space and installation time compared to traditional spark/air gap arrestors, contributing to increased efficiency and reduced costs.