The Pilz 751108 PNOZ s8 C is an expansion module intended for use with the PNOZ s8 Safety Relay system. It has one input and three outputs, with an IP40 rating. It is designed to be used with a wide variety of different safety systems, ranging from safety doors/gates and emergency stop controls, as well as protection from indirect contact and monitoring of devices. The 751108 is designed to be used in hazardous areas, such as those containing combustible gases, where a high level of protection is paramount. In these areas, the module monitors the status of, and sends commands to, connected components, allowing for safe operation.