The R1.100.4001.0 is a magnet switch interface (SMI 1001) designed as an interface device for dual-channel connection of 4 safety sensors with 2 normally open (NO) contacts. This component is manufactured by Wieland Electric and features green contacts as part of their standard design. The device is approved for use under c(UL)US standards, ensuring compliance with North American safety requirements. It is commonly used in industrial safety applications where reliable sensor integration and signal switching are required, providing a robust solution for connecting multiple safety sensors to control systems.