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Siemens 3RH2911-2GA31

Name: 3RH2911-2GA31
Brand: Siemens
SKU: 3RH2911-2GA31
Price: 25.52 GBP
Availability: InStock

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Marvo Stock ID MV-7CFT

HS Code 853650

SKU 3RH2911-2GA31

Condition New unboxed

Warranty 12 months

Weight (kg) 0.03

Length (mm) 47.70

Width (mm) 36.00

Height (mm) 41.50

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Specification & Description

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Specification & Description

Specification	Description
Part Number	3RH2911-2GA31
Alternative Part Number	3RH29112GA31
Manufacturer	Siemens
Product Type	Auxiliary switch block
Suitable For Use With	Contactor relays
Size	S00
Number of Contacts	3 Normally Open (NO) + 1 Normally Closed (NC)
Current Path Configuration	1 NO, 1 NC, 1 NO, 1 NO
Terminal Type	Spring-type terminals
Terminal Configuration	53/54, 63/64, 73/74, 83/84
Ambient Operating Temperature Range	-25 ... +60 °C during operation, -55 ... +80 °C during storage
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 690 V with degree of pollution 3
Surge Voltage Resistance	Rated value 6 kV
Mounting Type	Snap-on mounting
Dimensions (W x H x D)	36 mm x 41.5 mm x 47.7 mm
Protection Class	IP20 on the front
Compliance	Positively driven operation acc. to IEC 60947-5-1, suitable for use with 3RH2 contactor relays
Commodity Code	853650

The Siemens 3RH2911-2GA31 is a meticulously engineered auxiliary switch block designed to enhance the functionality of contactor relays. This component is part of the esteemed SIRIUS product family, known for its reliability and versatility in various industrial applications. The switch block features a front-mounted design with three normally open (NO) and one normally closed (NC) contact arrangements, providing a current path configuration of 1 NO, 1 NC, followed by two additional NO contacts.

Crafted for seamless integration, the 3RH2911-2GA31 is compatible with contactor relays of size S00 and is equipped with spring-type terminals for secure and straightforward connections. The terminals are designated as 53/54, 63/64, 73/74, and 83/84, ensuring a clear and organised wiring setup. This auxiliary switch block is physically coded to prevent incorrect combinations, and it is specifically designed to be combined with Siemens 3RH2140* and 3RH2440* contactor relays, adhering to the EN 50011 standard.

The unit boasts an impressive mechanical service life of typically 10 million switching cycles and an electrical endurance of 200,000 cycles at AC-15 at 230 V, highlighting its durability and long-term performance. The switch block operates reliably within an ambient temperature range of -25 to +60 °C, making it suitable for a wide range of operating environments.

Safety and quality are paramount, as evidenced by the 3RH2911-2GA31's insulation voltage rated at 690 V with a degree of pollution 3 and a surge voltage resistance of 6 kV. These specifications ensure that the switch block can handle the rigours of industrial electrical systems while maintaining the integrity of the auxiliary contacts.

The Siemens 3RH2911-2GA31 is a testament to the brand's commitment to innovation and excellence in industrial control components. It is an essential part for professionals seeking to optimise their control systems with a reliable and high-quality auxiliary switch block.

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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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 type of auxiliary switch is this?

This is an auxiliary switch designed to be mounted on the front of a device, featuring 3 normally open (NO) and 1 normally closed (NC) contacts.

Can this auxiliary switch be used with any contactor relay?

No, it is physically coded and can only be combined with specific contactor relays, namely the 3RH2140* and 3RH2440* series, according to EN 50011.

What is the protection class of this auxiliary switch?

The protection class for the front of this auxiliary switch is IP20.

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 °C and can be stored in temperatures ranging from -55 to +80 °C.

What is the mechanical service life of this auxiliary switch?

The mechanical service life of the auxiliary switch is typically 10 million switching cycles.

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

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

What is the insulation voltage rating for this auxiliary switch?

The insulation voltage with a degree of pollution 3 is rated at 690 V.

What is the surge voltage resistance of this auxiliary switch?

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

What type of terminals does this auxiliary switch have?

This auxiliary switch is equipped with spring-type terminals.

Is there any specific product function related to safety for this auxiliary switch?

Yes, the auxiliary switch has a positively driven operation according to IEC 60947-5-1, which is a safety feature.

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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