3RH1921-1CA10 SIEMENS

The 3RH1921-1CA10 auxiliary switch block from Siemens is designed to enhance the functionality of motor contactors. This 1-pole auxiliary switch block features one normally open (1 NO) contact, providing an additional switching capability for control circuits. It is engineered in accordance with EN 50005 standards, ensuring compliance with international safety and performance requirements. The screw terminal connection type facilitates easy and secure wiring, contributing to efficient installation and maintenance. This auxiliary switch block is specifically designed for use with motor contactors, expanding their control capabilities. It allows for the integration of additional control functions, such as signaling, interlocking, or monitoring. The robust design and reliable performance of the 3RH1921-1CA10 make it suitable for a wide range of industrial applications. Its compact size allows for easy integration into existing control systems without requiring significant space. By adding auxiliary contacts to a motor contactor, this switch block enables more complex and sophisticated control schemes.