3RH1921-1DA11 SIEMENS Auxiliary Switch

Description

3RH1921-1DA11 SIEMENS Auxiliary Switch

Product Dimensions：

Detailed Product Description

The Siemens 3RH1921-1DA11 is an auxiliary switch designed for use with SIRIUS 3RT1 contactors and SIRIUS 3RH1 contactor relays. It is a versatile component commonly used in industrial automation and control systems.

Key Features and Specifications

• Contact Configuration: 1 Normally Open (NO) and 1 Normally Closed (NC) contacts
• Terminal Connection: Screw-type terminal connection
• Mounting: Side mounting
• Application: Designed for use with 3RT10, 3RT12, 3RT145, 3RT146, and 3RT147 contactors
• Operating Voltage: Up to 500V AC (pollution degree 3)
• Mechanical Life: Typically 10,000,000 cycles
• Electrical Life: Typically 200,000 cycles (AC-15, 230V)
• RoHS Compliant: Yes

Product Advantages

• Reliability: Proven reliability and long service life
• Flexibility: Can be mounted on either side of the contactor
• Compatibility: Designed to seamlessly integrate with Siemens SIRIUS products
• Safety: Meets international safety standards
• Versatility: Suitable for a wide range of applications

Precautions

• Correct Wiring: Ensure correct wiring to avoid damage and potential hazards.
• Torque: Tighten terminal screws to the specified torque.
• Environment: Avoid exposure to excessive heat, moisture, or corrosive environments.
• Maintenance: Periodically inspect for signs of wear or damage.

Applications

The 3RH1921-1DA11 is commonly used in various applications, including:

• Motor Control: Monitoring motor status and providing auxiliary control signals
• Automation Systems: Used in PLC-based automation systems for signaling and interlocks
• Machine Control: Controlling machine functions and safety interlocks
• Process Control: Monitoring process variables and triggering control actions

In summary, the Siemens 3RH1921-1DA11 is a robust and reliable auxiliary switch that offers a simple and effective solution for monitoring and controlling electrical circuits. Its compact design, easy installation, and compatibility with other Siemens components make it a popular choice for a wide range of industrial applications.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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