Siemens Auxiliary Switch Block 3RH2911-1HA11

Siemens Auxiliary Switch Block 3RH2911-1HA11

The Siemens 3RH2911-1HA11 is a front-mounted auxiliary switch block designed to enhance the functionality of Siemens contactors and relays. It provides additional control and signaling capabilities, making it an essential component in industrial automation systems.

Key Features

• Contact Configuration: Equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) contact, facilitating versatile control applications.
• Mounting: Easily snaps onto the front of compatible Siemens contactors and relays without the need for tools, ensuring quick and straightforward installation.
• Terminals: Features screw terminals for secure and reliable electrical connections.
• Compatibility: Designed for use with Siemens 3RT2 series contactors and 3RH2 series contactor relays, ensuring seamless integration into existing systems.

Technical Specifications

• Rated Operational Voltage: Up to 690 V AC.
• Rated Operational Current:
  • AC-12: 10 A at 24 V and 230 V.
  • AC-15: 6 A at 24 V and 230 V; 3 A at 400 V.
  • DC-12/DC-13: 10 A at 24 V; 0.26 A at 600 V.
• Mechanical Service Life: Approximately 10 million operating cycles.
• Electrical Endurance: Around 200,000 operating cycles at AC-15, 230 V.
• Protection Class: IP20, providing protection against solid objects larger than 12.5 mm.
• Operating Temperature Range: -25°C to +60°C.
• Dimensions:
  • Height: 37.5 mm
  • Width: 36 mm
  • Depth: 43.7 mm
• Weight: Approximately 0.047 kg.

Applications

The 3RH2911-1HA11 auxiliary switch block is ideal for expanding the control capabilities of Siemens contactors and relays in various industrial applications. It allows for additional signaling and control functions, enhancing the flexibility and efficiency of automation systems.

Installation

Designed for user-friendly installation, this auxiliary switch block can be mounted on the front of compatible Siemens contactors and relays without the need for additional tools. The screw terminals ensure a secure and reliable connection, facilitating straightforward integration into existing systems.

In summary, the Siemens 3RH2911-1HA11 auxiliary switch block is a versatile and reliable component that enhances the functionality of Siemens contactors and relays, making it a valuable addition to any industrial automation setup.