Image shown may not reflect the final product

Siemens 3RH2911-1FB22

Name: 3RH2911-1FB22
Brand: Siemens
SKU: 3RH2911-1FB22
Price: 56.94 GBP
Availability: InStock

Wrong part? Click here

£56.94 (ex. VAT)

23 ready to ship

Learn more about our conditions.

Image shown may not reflect the final product

Marvo Stock ID MV-7CEV

HS Code 85365080

SKU 3RH2911-1FB22

Condition New unboxed

Warranty 12 months

Weight (kg) 1.00

Length (mm) 300.00

Width (mm) 190.00

Height (mm) 150.00

Express delivery

Lightning fast delivery if ordered within 00:00:00

Need it urgently?

Call: +44 20 4570 3439

Quoting Marvo Stock ID: MV-7CEV

Select condition

Learn more about our conditions.

Returns Hassle-free returns

Thumbs up No hidden fees or duties

Shipping Swift dispatch and delivery

Similar Products

6ES7833-4CC16-0YT8

£194.70 (ex. VAT)

6AV7240- 3BC07-0HA0

£1,519.79 (ex. VAT)

6ES7511-1FK02-0AB0

£459.92 (ex. VAT)

3RH2122-2AP00

£52.23 (ex. VAT)

More about this product

Specification & Description

View now

Commonly Asked Questions

View now

Customer Reviews

View now

Specification & Description

Specification	Description
Part Number	3RH2911-1FB22
Alternative Part Number	3RH29111FB22
Manufacturer	Siemens
Product Type	Auxiliary Switch
Suitable Applications	Contactor Relay and Power Contactor
Protection Class	IP20 on the front
Ambient Operating Temperature	-25 to +60 °C during operation
Storage Temperature	-55 to +80 °C
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)
Insulation Voltage	Rated value of 690 V with degree of pollution 3
Surge Voltage Resistance	Rated value of 6 kV
Auxiliary Circuit Contacts	2 Normally Open (NO) + 2 Normally Closed (NC)
Mounting Type	Snap-on mounting
Dimensions (W x H x D)	36 mm x 37.5 mm x 43.7 mm
Electrical Connection	Screw-type terminals
Connectable Conductor Cross-Sections	For auxiliary contacts: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²) solid or stranded with wire end processing
Approvals	CE, UL, CSA, CCC

The Siemens 3RH2911-1FB22 auxiliary switch is a versatile and reliable component designed for seamless integration with contactor relays and power contactors. Crafted to enhance the functionality of your control systems, this auxiliary switch block features a configuration of 2 normally open (NO) and 2 normally closed (NC) contacts, providing flexibility for various circuit designs.

With a robust construction that ensures a mechanical service life of approximately 10 million switching cycles, the 3RH2911-1FB22 is built to last, even in demanding industrial environments. Its electrical endurance is equally impressive, with an estimated 200,000 switching cycles at AC-15 at 230V, highlighting its durability and reliability for continuous operation.

The switch operates efficiently within a broad ambient temperature range, from as low as -25°C to as high as +60°C, ensuring consistent performance under varying conditions. The unit's insulation voltage is rated at 690V with a degree of pollution 3, and it boasts a surge voltage resistance of 6kV, providing additional protection against electrical disturbances.

Installation is straightforward, thanks to its snap-on mounting design, which allows for quick and easy attachment to the front of compatible devices. The switch's dimensions are compact, with a width of 36mm, height of 37.5mm, and depth of 43.7mm, making it a space-saving solution for your control panels.

The 3RH2911-1FB22 auxiliary switch is a testament to Siemens' commitment to quality and innovation, offering a reliable solution for enhancing control circuit functionality and operational efficiency in a variety of 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.

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.

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.

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.

How do I create an account?

Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

Peace of mind with every purchase

Anna

‘I can recommend quick, efficient, and professional.’

Dan

‘The ordering was fast and efficient, and everything arrived just as they said it would.’

Julien

‘Perfect quick delivery, good service.’

Blažej Knežo

‘Quick response and fast delivery of the product.’

Kayden

‘Services is great.’

Advance Lifts

‘Great customer service , we needed some assistance quickly and received it.’

Anna

‘I can recommend quick, efficient, and professional.’

Julien

‘Perfect quick delivery, good service.’

Kayden

‘Services is great.’

Muswalin

‘Good packing, quickly delivery and responsible.’

Blažej Knežo

‘Quick response and fast delivery of the product.’

Andreas Boehm

‘Excellent service. The right gear and the right price,well packed and delivered on time.’

Ms. Mia

‘Quick response, good item, delivery on schedule.’

Learn more about Marvo

Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

What is the function of this auxiliary switch?

The auxiliary switch is designed to be snapped onto the front of contactor relays and power contactors, providing additional switching functions. It is commonly used to indicate the status of the main contactor or to switch a separate circuit in a control system.

Can you describe the protection class of this auxiliary switch?

This auxiliary switch has a protection class of IP20, which means it is protected against solid objects larger than 12.5mm but is not protected against water.

What are the ambient temperature limits for operating this auxiliary switch?

The auxiliary switch can operate within an ambient temperature range of -25 to +60 degrees Celsius during operation, and it can be stored in temperatures ranging from -55 to +80 degrees Celsius.

How many mechanical operating cycles can this auxiliary switch withstand?

The auxiliary switch is rated for typically 10 million mechanical operating cycles, indicating its durability and longevity in repetitive use.

What is the electrical endurance of this auxiliary switch at AC-15 at 230 V?

At AC-15 at 230 V, the auxiliary switch has an electrical endurance of typically 200,000 switching cycles.

What is the contact reliability of the auxiliary contacts?

The auxiliary contacts have a contact reliability of one faulty switching operation per 100 million operations at 17 V, 1 mA, which demonstrates a high level of reliability in low voltage applications.

What is the insulation voltage rating for this auxiliary switch?

The insulation voltage rating for the auxiliary switch is 690 V, with a degree of pollution 3, ensuring it can safely isolate in higher voltage environments.

What is the impulse voltage resistance of this auxiliary switch?

The auxiliary switch has an impulse voltage resistance rated value of 6 kV, which indicates its ability to withstand transient voltage spikes.

What are the dimensions required for mounting this auxiliary switch?

The auxiliary switch requires a width of 36 mm, a height of 37.5 mm, and a depth of 43.7 mm for mounting.

What type of electrical connection does this auxiliary switch use?

This auxiliary switch uses screw-type terminals for its electrical connections, which are suitable for a range of conductor cross-sections and provide a secure connection.

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.

The Smart Part

Factories implementing AI-driven systems, highlighting the benefits of investing in artificial intelligence.## Should You Be Investing in Artificial Intelligence?

Should you be investing in artificial intelligence?

Marvo

Just a few years back, investing in AI only existed in the realm of science fiction. It was a futuristic technology that could be found solely in books or in Hollywood films. Fast forward to todays world and AI is rapidly becoming an integral part of our daily lives. It is reshaping how we work, communicate and solve complex problems.

4 min read

December 13, 2024

The top 10 ways to improve your supply chain strategy

10 advanced techniques to improve your supply chain strategy

Marvo

A robust supply chain strategy is crucial in today’s interconnected and rapidly evolving global economy. Problems that businesses face include shifting consumer preferences, interruptions in supply, and an increasing focus on sustainability. This article delves into ten cutting-edge methods, in order to keep supply chain tactics robust, efficient, and competitive.

7 min read

November 22, 2024

What is supply chain optimisation?

Marvo

Supply chain optimisation is the key to navigating today's rapidly evolving manufacturing landscape. By improving their operations and logistics, businesses can reach greater levels of efficiency. This refinement also leads to strategic agility. As a result, companies position themselves to adapt to new challenges and seize opportunities.

6 min read

November 1, 2024

See all articles