Siemens Auxiliary Switch Block 3RH1911-1FA22

Siemens Auxiliary Switch Block 3RH1911-1FA22

The Siemens 3RH1911-1FA22 is a SIRIUS series auxiliary switch block designed to enhance the functionality of Siemens contactors by providing additional control contacts. This component is essential for applications requiring expanded control capabilities in industrial motor control and automation systems.

Key Features

• Contact Configuration: Equipped with 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, offering versatile control options.
• Mounting Type: Front-mountable design allows for easy attachment to Siemens SIRIUS contactors, facilitating straightforward installation.
• Electrical Ratings: Supports a maximum operating current of 10 Amperes and an insulation voltage of up to 690 VAC, ensuring reliable performance in demanding environments.
• Terminal Type: Features screw terminals for secure and stable electrical connections.
• Size: Compatible with S00 size contactors, making it suitable for compact installations.
• Durability: Designed for long-lasting operation with a high number of operating cycles, ensuring consistent performance over time.

Applications

The 3RH1911-1FA22 auxiliary switch block is ideal for various industrial applications, including:

• Motor Control Systems: Provides additional signaling and interlocking functions to enhance motor control operations.
• Industrial Automation: Used in control panels for machine and process control, offering expanded control capabilities.
• Power Distribution Panels: Enhances the functionality of contactors within power distribution systems.
• Factory and Process Automation: Ensures reliable auxiliary switching functions in automated processes.

Technical Specifications

• Model: 3RH1911-1FA22
• Series: SIRIUS 3RH19
• Contact Configuration: 2 NO + 2 NC
• Mounting Type: Front mounting on contactors
• Electrical Ratings: Maximum operating current of 10 A; insulation voltage up to 690 VAC
• Terminal Type: Screw terminals
• Size: S00
• Certifications: Compliant with IEC and UL standards

Incorporating the Siemens 3RH1911-1FA22 auxiliary switch block into your control systems enhances operational flexibility and reliability, making it a valuable component in industrial automation and motor control applications.