Siemens 3RH1921-1CA01 Auxiliary Contact Block 1NC

The Siemens 3RH1921-1CA01 Auxiliary Contact Block features a 1NO (normally open) contact, designed to be mounted on Siemens contactors and other control devices. It provides additional switching functions for signaling and control in electrical systems. Compact and reliable, this auxiliary contact block enhances the functionality of contactors, enabling efficient monitoring and control of machinery in industrial and commercial applications, ensuring operational safety and system reliability.