3RH2921-2HA22-0KT0 SIEMENS

The 3RH2921-2HA22-0KT0 is an auxiliary switch designed for front mounting on Siemens 3RH contactors and 3RT spring-type terminal devices. This auxiliary switch features a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatile signaling options. Its current path arrangement includes 1 NC contact at terminals 31/32, another NC contact at terminals 41/42, 1 NO contact at terminals 53/54, and a final NO contact at terminals 63/64. This specific contact arrangement allows for comprehensive monitoring and control functionalities within electrical circuits. The spring-type terminals ensure secure and vibration-resistant connections, enhancing the reliability of the auxiliary switch in demanding industrial environments. It is suitable for a wide range of applications where auxiliary switching is required, such as motor control, automation systems, and signaling circuits. The front mounting design simplifies installation and maintenance, reducing downtime and improving overall system efficiency. Siemens' commitment to quality ensures that this auxiliary switch delivers consistent and dependable performance. This auxiliary switch extends the functionality of your contactor.