Siemens Industrial Controls 3RH2911-1FA22 Auxiliary Contact Block 2NO/2NC Screw Terminal

The Siemens 3RH2911-1FA22 is an auxiliary contact block designed for use with Siemens 3RT and 3TF series contactors and overload relays. This add-on contact module expands the control capabilities of your existing Siemens motor control equipment by providing additional switching contacts for signaling, interlocking, and control circuit functions.

Key Features:

• Contact configuration: 2 normally open (NO) + 2 normally closed (NC) contacts
• Screw terminal connections for secure, vibration-resistant wiring
• Front-mount auxiliary contact block for easy installation
• Compatible with Siemens 3RT and 3TF contactor series
• Rated for control circuit voltages up to 690V AC
• Mechanically linked to main contactor operation
• Complies with IEC/EN 60947 standards

This auxiliary contact block mounts directly to compatible Siemens contactors, providing reliable switching for pilot lights, alarm circuits, interlocking sequences, and PLC inputs. The screw terminals accommodate a wide range of wire sizes and ensure dependable connections in industrial environments. Ideal for machine control panels, motor control centers, and automated manufacturing systems requiring additional control contacts.