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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RA2921-1B |
| Alternative Part Number | 3RA29211B |
| Manufacturer | Siemens |
| Product Type | Link Module |
| Design | For screw terminal electrical and mechanical connections |
| Suitable For | 3RV2.1/3RV2.2 and 3RT2.2 DC operation, 3RW3 soft starters, or 3RF34 solid-state contactors |
| Product Brand Name | SIRIUS |
| Size of Circuit-Breaker | S00, S0 |
| Size of Contactor | S0 |
| Mounting Type | Screw fixing |
| Width | 45 mm |
| Height | 43 mm |
| Depth | 82.9 mm |
| Commodity Code | 853690 |
| General Product Approval | Declaration of Conformity available |
| Special Features | Multi-unit packaging |
| Installation | Easy installation with screw fixing for secure and reliable connection |
| Usage | Facilitates the connection between contactors and circuit breakers for streamlined integration |
The Siemens 3RA2921-1B is a versatile link module designed for seamless integration with a range of Siemens circuit breakers and contactors. This module is particularly suited for applications requiring reliable screw terminal electrical connections. It is compatible with the S00 and S0 sizes of circuit breakers and S0 size contactors, ensuring a broad spectrum of use cases within industrial settings.
Crafted for DC operation, the 3RA2921-1B link module facilitates the mechanical and electrical linking of components such as the 3RV2.1/3RV2.2 and 3RT2.2, as well as the 3RW3 soft starters and 3RF34 solid-state contactors. Its design prioritises ease of installation with a screw fixing mounting type, making it a practical choice for various control panel configurations.
With dimensions of 45mm in width, 43mm in height, and 83mm in depth, the module maintains a compact footprint, allowing for efficient use of space within electrical enclosures. The product is part of the esteemed SIRIUS range, which is synonymous with high-quality industrial control gear, offering robust performance in demanding environments.
The 3RA2921-1B is engineered to meet the rigorous standards expected of industrial components, ensuring reliability and durability for your electrical control systems. Whether you're upgrading existing equipment or designing new installations, this link module is an essential component for achieving streamlined and secure electrical connections.
Commonly Asked Questions
Is my order covered by a warranty?
Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Read more...Is Marvo a credible parts supplier?
Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.
Read more...Have steps been taken to ensure quality control?
Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.
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Frequently Asked Questions
What is the purpose of this link module?
The link module is designed to facilitate the electrical and mechanical connection between Siemens SIRIUS contactors and circuit breakers, specifically for the 3RV2.1/3RV2.2 and 3RT2.2, as well as for DC operation with soft starters 3RW3 or solid-state contactors 3RF34.
Can this link module be used with AC contactors?
No, this link module is specifically designed for actuating voltage contactors with DC operation.
What are the dimensions of the link module?
The link module has a width of 45 mm, a height of 43 mm, and a depth of 83 mm.
How is the link module mounted?
The link module is mounted using screw fixing, which allows for a secure and stable installation.
What sizes of circuit breakers and contactors is the link module compatible with?
The link module is compatible with size S00 and S0 circuit breakers and size S0 contactors.
Are there any certifications or approvals for this link module?
Yes, the link module has general product approvals and declarations of conformity, which can be found in the product's documentation.
What is the design of the product?
The design of the product is focused on actuating voltage contactors for DC operation, ensuring compatibility with specific Siemens components.
Is this link module part of a multi-unit packaging?
Yes, the 3RA2921-1B is available as part of a multi-unit packaging, which may be beneficial for projects requiring multiple units.
What is the product brand name associated with this link module?
The link module is part of the SIRIUS product range from Siemens.
How can I find further technical information about the link module?
Further technical information can be obtained from the product's documentation, which includes detailed specifications and installation instructions.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.
New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
