3RH1921-1HA22 SIEMENS auxiliary switch block

Description

3RH1921-1HA22 SIEMENS auxiliary switch block

Product Dimensions：

Product Description

The Siemens 3RH1921-1HA22 is an auxiliary switch block designed for use with motor contactors. It features 2 normally open (NO) and 2 normally closed (NC) contacts, conforming to the EN 50012 standard. The product is equipped with screw terminals and is suitable for contactors of sizes S0 to S3.

Key Features and Specifications

• Contact Configuration: 2 NO + 2 NC
• Standard: EN 50012
• Terminal Type: Screw
• Suitable for Contactors: Sizes S0 to S3
• Phasing Out: This product has been phased out and is no longer in production.

Advantages

• Reliable: Constructed to meet Siemens’ high quality standards for durability and performance.
• Versatile: Suitable for a wide range of applications due to its standard contact configuration and compatibility with various contactor sizes.
• Easy to Install: Screw terminals make for quick and easy wiring.

Precautions

• Discontinued Product: As this product is no longer in production, it is recommended to explore alternative solutions from the SIRIUS 3RH2 series.
• Compatibility: Always verify compatibility with your specific application and other system components.
• Installation: Follow the manufacturer’s guidelines for proper installation to ensure optimal performance and safety.

Applications

The 3RH1921-1HA22 was commonly used in various industrial applications where auxiliary contacts were required for control and monitoring purposes. These applications could include:

• Motor Control: Providing additional control functions for motors.
• Automation Systems: Used as part of larger automation systems to perform various switching and signaling tasks.
• Machine Control: Implementing safety interlocks and control circuits in machinery.

Important Note

Siemens has discontinued the 3RH1921-1HA22. If you require a replacement or have an ongoing project that utilizes this product, it is crucial to consult with Siemens or a certified distributor to identify a suitable alternative from the SIRIUS 3RH2 series.

For the most accurate and up-to-date information on the 3RH1921-1HA22 and its replacement options, please refer to the official Siemens product documentation or contact Siemens customer support.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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