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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RH1921-2HA22 |
| Alternative Part Number | 3RH19212HA22 |
| Manufacturer | Siemens |
| Series | 3RH |
| Type | Auxiliary Switch |
| Mounting | Snap On |
| Current Rating | 10 A |
| Dimensions | 44 x 44 x 40 mm |
| Pole Configuration | 4-Pole |
| Contact Configuration | 22 (2NO+2NC) |
| Connection Type | Cage Clamp |
| Approval Standards | General Product Approval, Functional Safety / Safety of Machinery, Declaration of Conformity |
| Special Features | Suitable for switching motor contactors |
The Siemens 3RH1921-2HA22 is a meticulously engineered auxiliary switch block designed to complement motor contactors within a diverse array of industrial applications. This switch block is a snap-on mount unit, ensuring a secure and straightforward installation process. With a current rating of 10 A and dimensions of 44 x 44 x 40 mm, it is both compact and robust, suitable for integration into various control systems.
Crafted for reliability, the 3RH1921-2HA22 features a 4-pole configuration with 2 normally open (NO) and 2 normally closed (NC) contacts, conforming to DIN EN50005 standards. The cage clamp connection offers a solid and maintenance-free electrical connection, enhancing the overall durability and longevity of the component.
This auxiliary switch block is part of the Siemens 3RH series, which is renowned for its high-quality construction and performance. It is an essential component for professionals seeking to enhance the operational efficiency and control accuracy of motor starters and contactor assemblies in industrial environments.
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.
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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 function of this auxiliary switch block?
The auxiliary switch block is designed to snap onto motor contactors, providing additional switching capabilities for control and signalling functions within an electrical circuit.
Can this auxiliary switch block be used with any contactor?
It is specifically designed for use with Siemens contactors for switching motors. Compatibility with other contactors should be verified based on the contactor's design and mounting requirements.
What are the electrical specifications of this auxiliary switch block?
The auxiliary switch block has a rating of 10 A and is suitable for use in control circuits with a 4-pole configuration.
How is the auxiliary switch block mounted?
This auxiliary switch block is designed for snap-on mounting, making it easy to attach to the appropriate contactor without the need for additional tools.
What type of connections does the auxiliary switch block support?
It supports cage clamp connections, which provide a secure and reliable method for connecting wires.
What certifications does the auxiliary switch block hold?
The auxiliary switch block has general product approvals and may have other certifications and declarations of conformity, which can be checked in the product's documentation.
How many poles does this auxiliary switch block have?
The auxiliary switch block is a 4-pole device, providing 2 normally open (NO) and 2 normally closed (NC) contacts.
What are the dimensions of the auxiliary switch block?
The dimensions of the auxiliary switch block are 44 x 44 x 40 mm, making it compact and suitable for integration into various control panel layouts.
Is there any special environmental consideration for using this auxiliary switch block?
Environmental considerations and confirmations for the auxiliary switch block should be referenced from the product's documentation to ensure it meets the specific requirements of the application.
How can I find more detailed information about the auxiliary switch block?
Detailed information about the auxiliary switch block, including technical characteristics and manuals, can be found in the product's documentation provided by the manufacturer.
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.
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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.
