3RH2911-1FA22-0MA0 SIEMENS

The 3RH2911-1FA22-0MA0 is a front-mounted auxiliary switch designed for use with Siemens 3RH and 3RT series contactors. This auxiliary switch features a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatile switching options for control circuits. The current path arrangement includes 1 NO contact at terminals .3/.4, another NO contact at terminals .3/.4, 1 NC contact at terminals .1/.2, and a final NC contact at terminals .1/.2. This contact configuration allows for the monitoring of the main contactor's state and the implementation of interlocking or signaling functions. The switch is equipped with screw terminals, ensuring a secure and reliable electrical connection. Its front-mounting design simplifies installation and maintenance, allowing for easy access to the auxiliary contacts. This auxiliary switch is ideal for applications requiring additional control or feedback signals from the main contactor. It enhances the functionality and safety of motor control circuits and other industrial automation systems. Siemens' commitment to quality ensures reliable performance and a long service life.