Siemens SIRIUS 3RH29 Auxiliary Switch Block 2NO+2NC Screw Terminals 3RH2911-1FA22-0MA0

The Siemens 3RH2911-1FA22-0MA0 is a high-quality auxiliary switch block from the SIRIUS 3RH29 series, designed for front mounting on 3RT2 contactors and 3RH2 control relays. It provides reliable switching and signaling functions in industrial automation applications.

Advantages

Compact design saves space in control cabinets. High electrical and mechanical endurance ensures long service life. Screw terminals provide secure and easy wiring. Compatible with a wide range of Siemens contactors and relays.

Suitable for

• Industrial control panels
• Motor control centers
• Automation systems
• Signaling and monitoring circuits

Key specifications

• Product Type: Auxiliary Switch Block
• Series: SIRIUS 3RH29
• Mounting Type: Front Mounting
• Contact Configuration: 2 Normally Open (NO) + 2 Normally Closed (NC)
• Number of NO Contacts: 2
• Number of NC Contacts: 2
• Connection Type: Screw Terminals
• Rated Insulation Voltage (Ui): 690 V
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Operating Current (AC-15, 230V): 6 A
• Operating Current (DC-13, 24V): 10 A
• Degree of Protection (IP): IP20 (Terminals), IP40 (Front)
• Ambient Operating Temperature: -25 to +60 °C
• Electrical Endurance (AC-15): 10,000,000 Switching Cycles
• Mechanical Endurance: 30,000,000 Switching Cycles
• Compatibility: For 3RT2 Contactors and 3RH2 Control Relays
• Pollution Degree: 3
• Overvoltage Category: III

Recommendations

For optimal performance, use with Siemens SIRIUS 3RT2 contactors and 3RH2 control relays. Ensure proper mounting and wiring according to the manufacturer's instructions.