The SRLB Limit Switch is a type of switch typically used in industrial automation systems. It is a mechanical switch that is used to detect the presence or absence of an object. The switch is connected to a sensor and when an object passes through the set range of the sensor, the switch is triggered and activates the output. The switch is typically used to detect the presence of an object for safety purposes or to activate a process. The SRLB Limit Switch is a reliable and cost-effective option for industrial automation applications.