Siemens SIRIUS 3RH29 Bloque auxiliar de contactos 1NO+3NC Conexiones por tornillo 3RH2911-1GA13

The Siemens 3RH2911-1GA13 is a high-quality auxiliary contact block from the SIRIUS 3RH29 series, designed for front mounting on SIRIUS 3RT2 contactors. This block provides one normally open (NO) and three normally closed (NC) contacts, offering reliable switching and signaling for industrial automation applications. With screw terminals for secure wiring and robust construction, it ensures long service life and consistent performance under demanding conditions.

Advantages

• Compact design saves space in control cabinets
• High electrical and mechanical durability reduces maintenance
• Easy front mounting simplifies installation
• Screw terminals provide reliable and vibration-resistant connections
• Wide operating temperature range (-25 to +60 °C) suits harsh environments

Suitable for

• Industrial control panels and switchgear
• Motor control centers
• Automation systems requiring auxiliary contacts
• Retrofitting or expanding SIRIUS 3RT2 contactors

Key specifications

• Product series: SIRIUS 3RH29
• Contact configuration: 1 normally open (NO) + 3 normally closed (NC)
• Number of auxiliary contacts: 4
• Mounting type: Front mounting
• Terminal type: Screw terminals
• Compatibility: For SIRIUS 3RT2 contactors
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational current (AC-15, 230 V): 6 A
• Rated operational current (AC-15, 400 V): 3 A
• Rated operational current (DC-13, 24 V): 10 A
• Degree of protection (front): IP40
• Degree of protection (terminals): IP20
• Operating temperature: -25 to +60 °C
• Electrical durability: 10 million switching cycles
• Mechanical durability: 30 million switching cycles
• Standards: IEC 60947-5-1
• Pollution degree: 3

Recommendations

For optimal performance, pair this auxiliary contact block with Siemens SIRIUS 3RT2 contactors. Ensure proper tightening torque for screw terminals as per manufacturer guidelines. Suitable for use in industrial environments with pollution degree 3.