The Siemens 3RH1921-1HA22 is an auxiliary switch block designed for use with Siemens motor contactors. It provides additional electrical contacts that can be used for signaling, interlocking, or other control functions. This particular model features 2 normally open (NO) and 2 normally closed (NC) contacts.
Product Specifications
Type: Auxiliary switch block
Contacts:2 NO + 2 NC
Standards:DIN EN 50012
Poles: 4
Terminal type:Screw terminal
For motor contactors:Sizes S0 to S3
Note: Discontinued product. The successor is SIRIUS 3RH2.
Product Advantages
Reliability: Constructed to Siemens' high quality standards for long-lasting performance.
Flexibility: Can be easily added to existing motor contactor installations.
Versatility: The additional contacts provide numerous control possibilities.
Compatibility: Specifically designed for use with Siemens motor contactors.
Precautions
Discontinued product: This product is no longer in production. It is recommended to use the successor, SIRIUS 3RH2, for new installations.
Correct installation: Ensure the switch block is correctly installed and wired according to the manufacturer's instructions.
Safety: Always follow safety guidelines and procedures when working with electrical equipment.
Applications
Signaling: Indicate the status of a motor or other equipment.
Interlocking: Prevent unintended operation of equipment.
Control: Implement various control functions, such as starting, stopping, and reversing motors.
Note: This product is typically used in industrial automation applications where reliable and flexible control is required.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
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