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Siemens 3RH2911-1NF11

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Marvo Stock ID MV-7CFB

HS Code 85365080

SKU 3RH2911-1NF11

Warranty 12 months

Weight (kg) 0.02

Length (mm) 43.70

Width (mm) 36.00

Height (mm) 37.50

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Specification & Description

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Commonly Asked Questions

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Specification & Description

Specification	Description
Part Number	3RH2911-1NF11
Alternative Part Number	3RH29111NF11
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, -55 to +80 °C during storage
Mechanical Operating Cycles	Typical 10,000,000
Electrical Operating Cycles	Typical 200,000 at AC-15, at 230 V
Contact Reliability	One incorrect switching operation of 100 million switching operations (5 V, 1 mA)
Insulation Voltage	Rated value of 690 V with degree of pollution 3
Impulse Voltage Resistance	Rated value of 6 kV
Auxiliary Circuit	1 Normally Closed (NC) contact, instantaneous
Mounting Type	Snap-on mounting
Connection Type	Screw terminal
Dimensions (W x H x D)	36 mm x 37.5 mm x 43.7 mm
Conductor Cross-section Range	Fine-stranded with wire-end ferrule: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
AWG Conductor Range	For auxiliary contacts: 2x (20 ... 16), 2x (18 ... 14)
Product Approvals	General Product Approval, EMC Declaration of Conformity, various international certifications
Special Features	Mirror contact according to IEC 60947-4-1 with 3RT2.2
Commodity Code	853650

The Siemens 3RH2911-1NF11 is a high-quality auxiliary switch designed to complement contactor relays and power contactors within industrial control systems. This solid-state component features a configuration of one normally open (NO) and one normally closed (NC) contact, providing versatility for various circuit control applications. With a compact design, it is suitable for size S00 and S0 contactors, ensuring a seamless fit into existing setups.

Crafted for durability, the 3RH2911-1NF11 boasts an impressive mechanical service life, capable of withstanding millions of switching cycles, making it a reliable choice for long-term use. The auxiliary switch operates within a wide ambient temperature range, ensuring consistent performance even in demanding environments.

Safety and compliance are at the forefront of its design, with an insulation voltage rated at 690V and a surge voltage resistance of 6kV, adhering to stringent industry standards. The switch's screw terminal connection type ensures a secure and stable electrical connection, which is essential for maintaining the integrity of the control system it serves.

The 3RH2911-1NF11 is part of the SIRIUS product family, known for its integration capabilities and engineered to facilitate straightforward installation. Its IP20 protection class rating on the front indicates a design that protects against solid objects, adding an extra layer of durability.

This auxiliary switch is an ideal solution for those seeking a robust and reliable component to enhance the functionality and efficiency of their industrial control systems.

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.

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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 type of auxiliary switch is this?

This is a solid-state component auxiliary switch designed for use with contactor relays and power contactors, specifically for the Siemens SIRIUS size S00 and S0 range.

Can this auxiliary switch be used in any specific temperature range?

Yes, the auxiliary switch is suitable for operation within an ambient temperature range of -25°C to +60°C and can be stored in temperatures ranging from -55°C to +80°C.

What is the mechanical service life of this auxiliary switch?

The mechanical service life of the auxiliary switch is typically around 5 million switching cycles, indicating its durability and longevity in applications.

What is the insulation voltage rating for this auxiliary switch?

The insulation voltage rating with a degree of pollution 3 for this auxiliary switch is 690V.

What are the contact reliability specifications for this auxiliary switch?

The contact reliability for this auxiliary switch is such that there is only one incorrect switching operation out of 100 million switching operations at 5V, 1mA.

How many NO and NC contacts does this auxiliary switch have?

This auxiliary switch has 1 Normally Open (NO) contact and 1 Normally Closed (NC) contact.

What type of mounting does this auxiliary switch support?

The auxiliary switch supports snap-on mounting, which allows for easy and secure installation.

What are the dimensions of this auxiliary switch?

The dimensions of the auxiliary switch are 36mm in width, 37.5mm in height, and 43.7mm in depth.

What type of electrical connections does this auxiliary switch use?

This auxiliary switch utilises screw-type terminals for its electrical connections, accommodating various conductor cross-sections.

Does this auxiliary switch have any specific certifications or approvals?

Yes, the auxiliary switch complies with general product approvals and declarations of conformity, ensuring its reliability and safety in industrial applications.

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.

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