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Siemens 3RH1911-2FA31

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3RH1911-2FA31

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Marvo Stock ID MV-6MD5
HS Code 85365080
SKU 3RH1911-2FA31
Condition Used
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

Specification Description
Part Number 3RH1911-2FA31
Alternative Part Number 3RH19112FA31
Manufacturer Siemens
Product Brand Name SIRIUS
Type Auxiliary Switch Block
Configuration 3 Normally Open (NO) + 1 Normally Closed (NC) contacts
Connection Type Cage Clamp Connection
Mounting Type Snap-on Mounting
Suitable For Contactor Relays and Contactors for Switching Motors
Size S00
Operating Voltage Up to 690 V Insulation Voltage
Impulse Voltage Resistance Rated at 6 kV
Operating Current for AC-12 10 A at 24 V / 230 V
Operating Current for AC-15 6 A at 24 V / 230 V, 3 A at 400 V, 1 A at 690 V
Operating Current for DC-12 10 A at 24 V / 60 V, 4 A at 110 V, 2 A at 220 V
Operating Current for DC-13 6 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V
Mechanical Operating Cycles Typically 10,000,000
Electrical Operating Cycles Typically 200,000 at AC-15 / 230 V
Ambient Operating Temperature -25 to +60 °C during operation
Storage Temperature -55 to +80 °C
Protection Class IP20 on the front
Width 36.5 mm
Height 37.5 mm
Depth 46 mm
Safety Features Mirror contact according to IEC 60947-4-1, Positively driven operation according to IEC 60947-5-1
Approvals General Product Approval, Functional Safety/Safety of Machinery, Type Examination

The Siemens 3RH1911-2FA31 is a high-quality auxiliary switch block designed for seamless integration with contactor relays and motor switches. This component is engineered to facilitate reliable switching operations within industrial control systems. It features a configuration of 3 normally open (NO) and 1 normally closed (NC) contacts, adhering to the DIN EN50005 standard, and offers a cage clamp connection for secure and straightforward installation.

Crafted for durability and performance, the switch block operates efficiently across a wide range of ambient temperatures, from as low as -25°C to as high as +60°C, ensuring consistent functionality in diverse working environments. The unit boasts an impressive mechanical operating cycle of typically 10 million operations, and an electrical operating cycle of 200,000 at AC-15 at 230V, highlighting its robustness and longevity.

The 3RH1911-2FA31 auxiliary switch block is compact with dimensions of 36.5mm in width, 37.5mm in height, and 46mm in depth, making it a space-efficient choice for panel builders and system integrators. Its spring-loaded terminals accommodate various conductor cross-sections, ensuring compatibility with a range of wiring configurations.

With an insulation voltage rated at 690V and impulse voltage resistance of 6kV, the switch block is designed to maintain electrical integrity and safety. It also features mirror contacts to IEC 60947-4-1 and positively driven operation to IEC 60947-5-1, further enhancing its operational reliability.

The Siemens 3RH1911-2FA31 is a testament to Siemens' commitment to quality and innovation, providing a dependable solution for industrial control applications that require precise auxiliary switching.

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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Frequently Asked Questions

What is the function of an auxiliary switch block?

An auxiliary switch block is used to provide additional contact combinations for control and signalling functions within a control system. It is typically used in conjunction with contactor relays and power contactors for switching motors.

Can this auxiliary switch block be used in safety applications?

Yes, the 3RH1911-2FA31 auxiliary switch block is designed with features such as mirror contacts and positively driven operation, making it suitable for use in safety-related applications.

What type of connections does this auxiliary switch block support?

The auxiliary switch block supports cage clamp connections, which provide a secure and reliable connection for the auxiliary and control current circuits.

What are the environmental operating conditions for this auxiliary switch block?

The auxiliary switch block can operate within an ambient temperature range of -25°C to +60°C for operating conditions, and -55°C to +80°C for storage conditions.

How many mechanical operating cycles can this auxiliary switch block withstand?

The auxiliary switch block is designed for typically 10 million mechanical operating cycles, indicating its durability and reliability for long-term use.

What is the insulation voltage rating for this auxiliary switch block?

The insulation voltage rating for the auxiliary switch block is 690V with a degree of pollution 3, ensuring it can handle high-voltage environments safely.

What is the impulse voltage resistance of this auxiliary switch block?

The impulse voltage resistance of the auxiliary switch block is rated at 6kV, which helps to protect the circuit from voltage spikes.

What are the dimensions of this auxiliary switch block?

The dimensions of the auxiliary switch block are 36.5mm in width, 37.5mm in height, and 46mm in depth, making it compact and suitable for various installation environments.

What is the protection class of this auxiliary switch block?

The protection class for the front of the auxiliary switch block is IP20, which provides protection against solid objects larger than 12.5mm but not against liquids.

How many auxiliary contacts does this switch block have?

The auxiliary switch block has 3 normally open (NO) contacts and 1 normally closed (NC) contact, providing flexibility in control circuit design.

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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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