Siemens 3RH1921-2KA02 – Auxiliary Contact Module (1 NO)

The Siemens 3RH1921-2KA02 is a SIRIUS auxiliary contact module designed for mounting on contactors or control blocks. It is typically configured as a single normally open contact (1 NO) used to open/close control circuits or provide signaling. Its compact construction allows front or direct mounting to a contactor housing. Suitable for industrial control applications where an additional reliable switching contact is required for integration into control logic.