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Check similar products or call us on +44 20 4570 3439 for assistance
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Specification & Description
The Siemens 3RV1991-1AA0 is a high-quality auxiliary switch block designed to complement the SIRIUS series of 3RV1 motor starter protectors. This component is essential for industrial applications requiring reliable circuit control and protection. It operates at a voltage of 250 V ac/dc, ensuring compatibility with a wide range of electrical systems.
Crafted for durability and consistent performance, the 3RV1991-1AA0 features a signaling changeover switch and a tripped message indicator, which is crucial for monitoring the status of your motor starter protectors. This auxiliary switch is suitable for frame sizes 3RV1.5, 3RV1.6, 3RV1.7, and 3RV1.8, providing a versatile solution for various motor sizes.
The compact design of the 3RV1991-1AA0 allows for easy integration into existing setups, making it a convenient choice for system upgrades or new installations. Its robust construction ensures it can withstand the rigours of industrial environments, maintaining the integrity of your electrical circuits and machinery.
With the Siemens reputation for engineering excellence, this auxiliary switch block is a reliable component that offers both functionality and peace of mind in safeguarding your motor starter circuits. Whether you're managing complex machinery or simple motor applications, the Siemens 3RV1991-1AA0 is an indispensable part of your control system, providing the assurance that your operations will run smoothly and efficiently.
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 purpose of an auxiliary switch block?
An auxiliary switch block is used to provide additional switching functions for motor starter protectors. It can be used for signaling, interlocking, and control circuits, enhancing the functionality of the motor protection system.
Can this auxiliary switch block be used with any size of 3RV1 motor starter protector?
The Siemens 3RV1991-1AA0 is designed to be compatible with frame sizes 3RV1.5, 3RV1.6, 3RV1.7, and 3RV1.8 motor starter protectors.
How is the auxiliary switch block installed?
The auxiliary switch block is typically mounted directly onto the motor starter protector without the need for tools. It snaps into place, providing a secure and reliable connection.
What type of contacts does the auxiliary switch block have?
This auxiliary switch block features a signaling changeover switch, which can be used to indicate the operational status of the motor starter protector, such as a tripped condition.
Is the auxiliary switch block suitable for AC and DC applications?
Yes, the auxiliary switch block is rated for 250 V for both AC and DC applications, making it versatile for various electrical systems.
What certifications does the auxiliary switch block hold?
The auxiliary switch block comes with general product approvals and a declaration of conformity, ensuring it meets the necessary industry standards and regulations.
Can the auxiliary switch block be used for safety applications?
While the auxiliary switch block can provide status signaling, it should be used as part of a comprehensive safety system and not as the sole safety device.
What maintenance is required for the auxiliary switch block?
The auxiliary switch block is designed to be low maintenance. However, it's recommended to periodically check the connections and operation as part of routine maintenance of the motor starter protector.
How can I identify if the auxiliary switch block is functioning correctly?
Proper function can be identified by testing the continuity of the switch contacts and verifying that it correctly indicates the status of the motor starter protector.
What should I do if the auxiliary switch block is not working as expected?
If the auxiliary switch block is not functioning as expected, it should be inspected for proper installation, correct wiring, and absence of damage. If issues persist, consider consulting the manufacturer's guidelines or seeking technical advice.
Part conditions explained
We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:
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.
