3RH2911-1HA13 SIEMENS

The 3RH2911-1HA13 is a front-mounted auxiliary switch block manufactured by Siemens, designed for use with 3RH contactors and 3RT contactor relays. This auxiliary switch block enhances the functionality of the main device by providing additional switching contacts for control and signaling circuits. It features a combination of normally open (NO) and normally closed (NC) contacts, specifically one NO and three NC contacts. The contact configuration is arranged with one NC contact on current path .1/.2, another NC contact on current path .1/.2, a third NC contact on current path .1/.2, and the single NO contact on current path .3/.4. These contacts are wired using screw terminals, ensuring a secure and reliable electrical connection. The auxiliary switch block is easily mounted on the front of the contactor or contactor relay, saving space and simplifying installation. It is suitable for a wide range of applications, including motor control, automation systems, and general switching applications. The 3RH2911-1HA13 auxiliary switch block provides a convenient and cost-effective way to expand the control capabilities of Siemens contactors and contactor relays, improving overall system performance and reliability. Its robust design and high-quality materials ensure long-lasting performance in demanding industrial environments.