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3RH2911-1FA22

£33.88 (ex. VAT)

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3RH2911-1FA22

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Marvo Stock ID MV-7CET
HS Code 85365080
SKU 3RH2911-1FA22
Condition New unboxed
Warranty 12 months
Weight (kg) 1.00
Length (mm) 210.00
Width (mm) 170.00
Height (mm) 60.00

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Specification & Description

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Commonly Asked Questions

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Specification & Description

Specification Description
Part Number 3RH2911-1FA22
Alternative Part Number 3RH29111FA22
Manufacturer Siemens
Rated Insulation Voltage 690 V ac
Rated Operational Voltage 600 V dc
Number of Contacts 4 (2NO/2NC)
Contact Configuration Snap-On
Mechanical Service Life Typical 10,000,000 switching cycles
Electrical Endurance Typical 200,000 switching cycles at AC-15, 230 V
Contact Reliability 1 faulty switching per 100 million (17 V, 1 mA)
Surge Voltage Resistance Rated value 6 kV
Protection Class IP20 on the front
Ambient Operating Temperature Range -25 ... +60 °C during operation, -55 ... +80 °C during storage
Suitability for Use Contactor relay and power contactor
Terminal Type Screw terminal
Commodity Code 85365080

The Siemens 3RH2911-1FA22 is a meticulously engineered auxiliary switch designed to enhance the functionality of contactor relays and power contactors. This switch is a vital component for industrial control systems, offering a reliable solution for various switching operations. With a configuration of 2NO/2NC (2 Normally Open and 2 Normally Closed) contacts, it provides flexibility for a wide range of circuit designs.

Crafted for durability, the 3RH2911-1FA22 boasts an impressive mechanical service life, capable of up to 10 million switching cycles, ensuring longevity and consistent performance in demanding industrial environments. Its electrical endurance is equally robust, with a typical rating of 200,000 switching cycles at AC-15 at 230V.

The switch operates efficiently within a broad ambient temperature range, from -25°C to +60°C during operation, and can withstand storage temperatures from -55°C to +80°C, making it suitable for various climatic conditions. The unit is designed with a protection class of IP20 on the front, safeguarding the internal components from solid objects larger than 12.5mm.

With an insulation voltage rated at 690V and a surge voltage resistance of 6kV, the 3RH2911-1FA22 ensures safe and reliable isolation between the power and auxiliary circuits. The switch's contact reliability is exceptional, with a low probability of faulty switching, thus providing peace of mind for critical applications.

The compact and intuitive design allows for snap-on mounting, facilitating easy installation and maintenance. The screw-type terminals provide a secure and straightforward connection for auxiliary and control current circuits.

In summary, the Siemens 3RH2911-1FA22 auxiliary switch is a versatile and dependable choice for enhancing control systems, offering both reliability and ease of use for industrial applications.

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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What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

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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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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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Peace of mind with every purchase

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Frequently Asked Questions

What type of device is the Siemens Auxiliary Switch?

The Siemens Auxiliary Switch is an electrical component used for switching and signalling functions in various control and automation systems. It is designed to be mounted on the front of contactor relays and power contactors.

What are the voltage ratings for this auxiliary switch?

This auxiliary switch is rated for 690 V ac and 600 V dc, making it suitable for a wide range of industrial applications.

How many contacts does the auxiliary switch have?

The auxiliary switch comes with 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, providing flexibility for different circuit configurations.

Can this auxiliary switch be used with both AC and DC circuits?

Yes, the auxiliary switch is designed to work with both AC and DC circuits, with the appropriate voltage ratings for each.

What is the mechanical service life of the auxiliary switch?

The mechanical service life of the auxiliary switch is typically around 10 million switching cycles, indicating its durability and longevity in operation.

What is the electrical endurance of the auxiliary switch?

The electrical endurance of the auxiliary switch is typically 200,000 switching cycles at AC-15 at 230 V, which demonstrates its reliability over time.

What is the insulation voltage of the auxiliary switch?

The insulation voltage of the auxiliary switch, with a degree of pollution 3, is rated at 690 V.

What is the surge voltage resistance of this switch?

The surge voltage resistance of the auxiliary switch is rated at 6 kV.

What type of terminals does the auxiliary switch have for connection?

The auxiliary switch features screw-type terminals for secure and reliable electrical connections.

Is the auxiliary switch suitable for use in contactor relays and power contactors?

Yes, the auxiliary switch is specifically designed for use with contactor relays and power contactors, enhancing their functionality and control capabilities.

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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.

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