steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
3RA1921-1B
Siemens 3RA1921-1B available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
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1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RA1921-1B is a meticulously engineered link module designed to facilitate the seamless integration of circuit breakers and contactors within industrial control systems. This component is part of the esteemed SIRIUS product line, renowned for its reliability and versatility in a multitude of automation applications.
Crafted for compatibility with 3RV1.2 and 3RT1.2 devices, the 3RA1921-1B ensures both electrical and mechanical connections are established with precision. It is specifically tailored for DC operation, making it a suitable choice for systems that operate on direct current.
The link module's compact size corresponds with the S0 size specification for both circuit breakers and contactors, ensuring a perfect fit and streamlined installation process. Its design is focused on providing a straightforward solution for multi-unit packaging, which is particularly beneficial for large-scale operations that require consistency and ease of maintenance.
As a product that has been subject to a phase-out, the 3RA1921-1B's successor, the SIRIUS 3RA2 series, is recommended for new installations. However, for maintenance or direct replacement purposes, the 3RA1921-1B remains a reliable choice that upholds the quality standards associated with the Siemens brand.
This link module is a testament to Siemens' commitment to developing products that enhance the efficiency and operational coherence of industrial control systems. It stands as a testament to the brand's dedication to innovation and its ability to provide solutions that meet the evolving needs of the automation industry.
Crafted for compatibility with 3RV1.2 and 3RT1.2 devices, the 3RA1921-1B ensures both electrical and mechanical connections are established with precision. It is specifically tailored for DC operation, making it a suitable choice for systems that operate on direct current.
The link module's compact size corresponds with the S0 size specification for both circuit breakers and contactors, ensuring a perfect fit and streamlined installation process. Its design is focused on providing a straightforward solution for multi-unit packaging, which is particularly beneficial for large-scale operations that require consistency and ease of maintenance.
As a product that has been subject to a phase-out, the 3RA1921-1B's successor, the SIRIUS 3RA2 series, is recommended for new installations. However, for maintenance or direct replacement purposes, the 3RA1921-1B remains a reliable choice that upholds the quality standards associated with the Siemens brand.
This link module is a testament to Siemens' commitment to developing products that enhance the efficiency and operational coherence of industrial control systems. It stands as a testament to the brand's dedication to innovation and its ability to provide solutions that meet the evolving needs of the automation industry.
| Specification | Description |
|---|---|
| Part Number | 3RA1921-1B |
| Alternative Part Number | 3RA19211B |
| Manufacturer | Siemens |
| Category | General Automation |
| Product Type | Link Module |
| Application | For use with 3RV1.2 and 3RT1.2 contactors and circuit breakers |
| Operation | DC Operation |
| Size | Suitable for Size S0 circuit breakers and contactors |
| Packaging | Sold in multiples of 10 items |
| Product Brand Name | SIRIUS |
| Design | Electrical and mechanical link module designed for DC actuated systems |
| Commodity Code | 85366990 |
| Last Modified | Information available indicates modifications as of 10/16/2018; subject to change without notice |
What is the purpose of a link module?
A link module is designed to electrically and mechanically connect a circuit breaker with a contactor, facilitating the integration of motor protection and control functions.
Can this link module be used with any size of circuit breaker and contactor?
The Siemens 3RA1921-1B is specifically designed for use with size S0 circuit breakers and contactors.
Is this link module suitable for AC or DC operation?
The link module is intended for DC operation, ensuring compatibility with DC actuated circuit breakers and contactors.
How is the link module packaged?
The link module typically comes in multi-unit packaging, which may contain a standard quantity of 10 items per package.
What should I consider when looking for a successor to this link module?
When seeking a successor for the link module, it is recommended to consider the SIRIUS 3RA2 range, with the preferred successor type being >>3RA2921-1B<<.
Are there any certifications or approvals for this link module?
Yes, the link module comes with general product approvals and declarations of conformity, which attest to its compliance with relevant standards and regulations.
What is the significance of the design of the product?
The design of the product ensures that it is compatible with specific models of circuit breakers and contactors, in this case, for 3RV1.2 and 3RT1.2, and is optimised for DC actuation.
What should I do if I need a link module for a different size or type of device?
If you require a link module for a different size or type of device, you should look for a module that is specifically designed for compatibility with those devices to ensure proper operation and safety.
- Integration in motor control systems for compact and efficient circuit control
- Facilitating quick and easy assembly of contactor and circuit-breaker combinations
- Enabling direct mechanical and electrical linking between components in control panels
- Use in automation systems requiring DC operation for consistent performance
- Replacement of existing link modules in older installations to maintain system integrity
- Application in control circuits within manufacturing and processing industries
- Utilisation in modular control systems for streamlined maintenance and upgrades
- Implementation in conveyor systems for coordinated motor control operations
- Serving as a component in control cabinets for industrial machinery automation
- Assisting in the retrofitting of control systems to extend the operational lifespan of equipment
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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All parts new or reconditioned are covered by EU Automation 12 month warranty
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
5 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
6 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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