3RH1911-1FA20 SIEMENS

The 3RH1911-1FA20 is an auxiliary switch block manufactured by Siemens, designed to enhance the functionality of contactor relays and motor contactors. This switch block features a 20 terminal configuration and incorporates 2 normally open (NO) contacts, conforming to EN 50005 standards. It is specifically designed for size S00 contactor relays and motor contactors, ensuring seamless integration and reliable performance. The screw terminal connections facilitate easy and secure wiring, minimizing installation time and ensuring stable electrical connections. This auxiliary switch block expands the control capabilities of the main contactor by providing additional switching contacts for signaling, interlocking, or other control functions. Its robust design ensures durability and reliable operation in demanding industrial environments. The 3RH1911-1FA20 auxiliary switch block is an essential component for comprehensive motor control and automation systems. It provides a simple and effective way to add auxiliary contacts to Siemens contactors. This device enhances control circuit flexibility and improves overall system performance.