Siemens safety travel switch with closing device, auxiliary release before spring locking, magnetic voltage 24VDC monitoring actuator 2NC/1NO monitoring magnet 2NC/1NO, no actuator when supplied. Need to be ordered separately; 3SE53220SD21Siemens safety travel switch with closing device, auxiliary release before spring locking, magnetic voltage 24VDC monitoring actuator 2NC 1NO monitoring magnet 2NC 1NO, no actuator when supplied. Need to be ordered separately; 3SE53220SD21 About koeedmro At koeedmro. com, we are professionals in the field of industrial electronics. We specialize in the sales of industrial electronic PLCs, HMIs, Motors, Drives, Converters, and more. We proudly carry