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Siemens 3RH2911-2DA20

Name: 3RH2911-2DA20
Brand: Siemens
SKU: 3RH2911-2DA20
Price: 26.25 GBP
Availability: InStock

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£26.25 (ex. VAT)

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Image shown may not reflect the final product

Marvo Stock ID MV-7CFJ

HS Code 8536

SKU 3RH2911-2DA20

Condition Used

Warranty 12 months

Weight (kg) 0.02

Length (mm) 66.00

Width (mm) 10.00

Height (mm) 64.80

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Specification & Description

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Commonly Asked Questions

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Specification & Description

Specification	Description
Part Number	3RH2911-2DA20
Alternative Part Number	3RH29112DA20
Manufacturer	Siemens
Product Brand Name	SIRIUS
Suitability for Use	Contactor relay and power contactor
Protection Class IP on the Front	IP20
Ambient Temperature (Storage)	-55°C to +80°C
Ambient Temperature (Operation)	-25°C to +60°C
Mechanical Service Life	10,000,000 switching cycles
Electrical Endurance (AC-15 at 230V)	200,000 switching cycles
Contact Reliability	One incorrect switching operation per 100 million (17 V, 1 mA)
Insulation Voltage	690 V
Surge Voltage Resistance	6 kV
Number of NC Contacts	0
Number of NO Contacts	2
Mounting Type	Snap-on mounting
Width	10 mm
Height	64.8 mm
Depth	66 mm
Electrical Connection Type	Spring-loaded terminal
Conductor Cross-Section (with end)	2x (0.5 ... 1.5 mm²)
Conductor Cross-Section (without end)	2x (0.5 ... 2.5 mm²)
AWG Conductor Cross-Section	2x (20 ... 14)
Product Function (Mirror Contact)	Yes, with 3RT2
Product Function (Forced Guidance)	No
Typical Applications	Motor contactors, auxiliary switch block for industrial automation systems

The Siemens 3RH2911-2DA20 is a high-quality lateral auxiliary switch block designed for use with motor contactors, specifically the 3RH and 3RT series. This auxiliary switch block features two normally open (NO) contacts, providing reliable and efficient switching capabilities. It is equipped with spring-loaded terminals for secure and easy installation, ensuring a stable connection.

Engineered under the renowned SIRIUS brand, the 3RH2911-2DA20 is suitable for both contactor relays and power contactors. It boasts a robust protection class of IP20, making it suitable for various industrial environments. The switch block operates effectively within a wide ambient temperature range of -25°C to +60°C, and can be stored in temperatures ranging from -55°C to +80°C.

With a mechanical service life of up to 10 million operating cycles and an electrical endurance of 200,000 cycles at AC-15, 230V, this auxiliary switch block is built for longevity and dependable performance. It also features a high insulation voltage of 690V and a surge voltage resistance of 6kV, ensuring safe and stable operation.

The Siemens 3RH2911-2DA20 auxiliary switch block is an essential component for enhancing the functionality and reliability of your motor contactor systems, providing precise and consistent auxiliary switching operations.

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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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 primary function of this part?

This part is a lateral auxiliary switch block designed for use with motor contactors, providing additional switching capabilities.

What type of terminals does this part use?

The part uses spring-loaded terminals for secure and reliable connections.

What is the protection class of this part?

The protection class on the front of this part is IP20.

What is the typical mechanical service life of this part?

The typical mechanical service life of this part is 10,000,000 switching cycles.

What is the rated insulation voltage for this part?

The rated insulation voltage for this part, with a degree of pollution 3, is 690 V.

What is the ambient operating temperature range for this part?

The ambient operating temperature range for this part is -25°C to +60°C.

How many NO (normally open) contacts does this part have?

This part has two normally open (NO) contacts.

What is the surge voltage resistance of this part?

The surge voltage resistance of this part is rated at 6 kV.

What is the typical electrical endurance of this part at AC-15 at 230 V?

The typical electrical endurance of this part at AC-15 at 230 V is 200,000 switching cycles.

What is the operational current of the auxiliary contacts at 24 V DC?

The operational current of the auxiliary contacts at 24 V DC is 10 A.

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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