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Siemens 3RH1911-1FB11

Name: 3RH1911-1FB11
Brand: Siemens
SKU: 3RH1911-1FB11
Price: 39.08 GBP
Availability: InStock

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£39.08 (ex. VAT)

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Marvo Stock ID MV-7C6V

HS Code 85365080

SKU 3RH1911-1FB11

Condition New unboxed

Warranty 12 months

Weight (kg) 0.03

Length (mm) 41.50

Width (mm) 36.50

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	3RH1911-1FB11
Alternative Part Number	3RH19111FB11
Manufacturer	Siemens
Product Type	Auxiliary Switch Block
Suitable Applications	Contactor relay and power contactor for switching motors
Size	S00
Number of Contacts	1 Normally Open (NO) + 1 Normally Closed (NC)
Connection Type	Screw Connection
Mounting Type	Snap-on mounting
Operating Voltage for AC-12	24 V, 230 V, 400 V, 690 V - 10 A
Operating Voltage for AC-15	24 V, 230 V, 400 V - 6 A; 690 V - 1 A
Operating Voltage for DC-13	24 V - 6 A; 60 V - 2 A; 110 V - 1 A; 220 V - 0.3 A
Insulation Voltage	Rated value 690 V with degree of pollution 3
Impulse Voltage Resistance	Rated value 6 kV
Ambient Operating Temperature	-25 to +60 °C
Storage Temperature	-55 to +80 °C
Mechanical Operating Cycles	Typical 10,000,000
Electrical Operating Cycles	At AC-15, at 230 V typical 200,000
Contact Reliability	1 faulty switching per 100 million (17 V, 1 mA)
Protection Class	IP20
Dimensions (W x H x D)	36.5 mm x 37.5 mm x 41.5 mm
Connection Cross-Section	For auxiliary contacts: 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²); For AWG: 2x (20 ... 16), 2x (18 ... 14)

The Siemens 3RH1911-1FB11 is a meticulously engineered auxiliary switch block designed to complement contactor relays and power contactors, particularly for motor switching applications. This component, belonging to the SIRIUS product family, is renowned for its reliability and durability in industrial settings. It features a configuration of one normally open (NO) and one normally closed (NC) contact, making it versatile for various control and signalling circuits.

Crafted with a focus on user-friendly installation, the 3RH1911-1FB11 boasts a snap-on mounting design, allowing for quick and secure attachment to compatible devices. The switch block operates within an ambient temperature range of -25 to +60 degrees Celsius, ensuring consistent performance even in demanding environments.

With an IP20 protection class rating on the front, the unit is safeguarded against solid objects larger than 12.5mm, although it should be housed within a suitable enclosure for optimal protection. The electrical durability of the switch block is impressive, with typical operating cycles at AC-15, 230V rated at 200,000, and a mechanical operating life of approximately 10 million cycles, highlighting its capacity for long-term use.

The 3RH1911-1FB11 is equipped with screw-type terminals for secure and reliable electrical connections, accommodating a range of conductor cross-sections for auxiliary contacts. It also meets stringent standards for contact reliability, with a very low chance of incorrect switching operations, ensuring the integrity of the control system it is part of.

Overall, the Siemens 3RH1911-1FB11 auxiliary switch block is a testament to Siemens' commitment to quality, reliability, and innovation in automation and control components. It is an essential part of a robust and efficient electrical system, providing the dependability required for 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.

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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 device is this auxiliary switch block suitable for?

This auxiliary switch block is suitable for use with contactor relays and power contactors for switching motors, specifically of size S00.

What is the protection class for the front of this auxiliary switch block?

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

Can you specify the ambient temperature range for operating this auxiliary switch block?

The ambient temperature range for operating this auxiliary switch block is between -25°C and +60°C.

What is the mechanical service life of this auxiliary switch block?

The mechanical service life of this auxiliary switch block is typically around 10 million operating cycles.

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

This auxiliary switch block can typically withstand 200,000 electrical operating cycles at AC-15 at 230V.

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

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

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

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

How many normally closed (NC) and normally open (NO) contacts does this auxiliary switch block have?

This auxiliary switch block has 1 normally closed (NC) lagging contact and 1 normally open (NO) leading contact.

What are the operating current ratings for the auxiliary contacts of this switch block?

The operating current ratings for the auxiliary contacts of this switch block are 10A at 24V and 230V for AC-12, and vary for other voltages and DC applications as specified in the datasheet.

What type of mounting does this auxiliary switch block support?

This auxiliary switch block supports snap-on mounting for easy installation.

What are the dimensions of this auxiliary switch block?

The dimensions of this auxiliary switch block are 36.5mm in width, 37.5mm in height, and 41.5mm in depth.

What type of electrical connection does this auxiliary switch block use?

This auxiliary switch block uses screw-type terminals for its electrical connections.

What is the product function related to safety for this auxiliary switch block?

This auxiliary switch block has a product function of positively driven operation to IEC 60947-5-1, ensuring reliable performance in safety circuits.

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.

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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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