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Siemens 3RH1911-1MA11

Name: 3RH1911-1MA11
Brand: Siemens
SKU: 3RH1911-1MA11
Price: 20.38 GBP
Availability: InStock

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£20.38 (ex. VAT)

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Marvo Stock ID MV-1SBU

HS Code 85365080

SKU 3RH1911-1MA11

Condition Used

Category General Automation

Warranty 12 months

Weight (kg) 0.04

Length (mm) 41.50

Width (mm) 36.50

Height (mm) 37.50

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More about this product

Specification & Description

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Commonly Asked Questions

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Customer Reviews

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Specification & Description

Specification	Description
Part Number	3RH1911-1MA11
Alternative Part Number	3RH19111MA11
Manufacturer	Siemens
Category	General Automation
Product Type	Auxiliary Switch Block
Standard Compliance	DIN EN 50005
Contact Configuration	1 Normally Open (NO) + 1 Normally Closed (NC)
Connection Type	Connection from below with screw connection
Suitable For	Contactor relays and contactors for switching motors
Contactor Size Compatibility	Sizes S00
Protection Class	IP20
Ambient Temperature Range (Operating)	-25°C to +60°C
Ambient Temperature Range (Storage)	-55°C to +80°C
Mechanical Operating Cycles	Typically 10,000,000
Electrical Operating Cycles (AC-15)	Typically 200,000 at 230V
Contact Reliability	One incorrect switching operation of 100 million switching operations (17 V, 5 mA)
Insulation Voltage	Rated at 690V with degree of pollution 3
Impulse Voltage Resistance	Rated at 6kV
Operating Current (AC-12)	10A at 24V, 230V, 400V, and 690V
Mounting Type	Snap-on mounting
Dimensions (Width x Height x Depth)	36.5 mm x 37.5 mm x 41.5 mm
Electrical Connection	Screw-type terminals
Conductor Cross-Section	Solid or finely stranded: 2x (0.5 - 1.5 mm²), 2x (0.75 - 2.5 mm²)
AWG Conductor Size	2x (20 - 16), 2x (18 - 14)
Mirror Contact Compliance	Yes, to IEC 60947-4-1
Positively Driven Operation	Yes, to IEC 60947-5-1
Weight	0.040 kg

The Siemens 3RH1911-1MA11 is a high-quality auxiliary switch block designed to meet the rigorous standards of DIN EN 50005. This switch block features a single normally open (NO) and a single normally closed (NC) contact, offering reliable and versatile switching capabilities for a range of industrial applications. Its connection is established from below using a screw connection, ensuring a secure and durable fit.

Crafted for use with contactor relays and contactors for motor switching, the 3RH1911-1MA11 is compatible with size S00 devices, making it a compact yet powerful component for your automation needs. The switch block operates within an ambient temperature range of -25°C to +60°C during operation and can withstand storage temperatures from -55°C to +80°C, ensuring resilience in various working environments.

With an impressive mechanical operating cycle of typically 10,000,000 and an electrical operating cycle at AC-15 at 230V of typically 200,000, this auxiliary switch block is built for endurance. It boasts an insulation voltage rated at 690V with a degree of pollution 3 and an impulse voltage resistance rated at 6kV, highlighting its robustness against electrical disturbances.

The 3RH1911-1MA11 is designed for snap-on mounting, which facilitates easy installation and maintenance. Its dimensions are 36.5mm in width, 37.5mm in height, and 41.5mm in depth, making it a compact solution for your control systems. The switch block's screw-type terminals accommodate a range of conductor cross-sections, ensuring compatibility with various wiring setups.

This auxiliary switch block is not only a reliable performer but also adheres to safety standards, featuring mirror contact functionality according to IEC 60947-4-1 and positively driven operation according to IEC 60947-5-1. It is a testament to Siemens' commitment to quality and safety in automation components.

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 is the function of this auxiliary switch block?

The auxiliary switch block is designed for use with contactor relays and power contactors, providing an additional 1NO (normally open) and 1NC (normally closed) contact for various control and signalling functions in motor switching applications.

Can this auxiliary switch block be mounted easily?

Yes, it features a snap-on mounting design for quick and easy installation onto compatible devices.

What is the protection class of this auxiliary switch block?

The protection class for the front of the auxiliary switch block is IP20, indicating a basic level of protection against solid objects.

What are the ambient temperature limits for operating this auxiliary switch block?

The auxiliary switch block can operate within an ambient temperature range of -25°C to +60°C and can be stored in temperatures ranging from -55°C to +80°C.

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

It is designed to withstand typically 10,000,000 mechanical operating cycles, indicating a high level of durability for repetitive use.

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

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

Does this auxiliary switch block have a mirror contact function?

Yes, it includes a mirror contact function according to IEC 60947-4-1 standards, enhancing its safety features.

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

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

What type of electrical connections does this auxiliary switch block support?

It supports screw-type terminals for both auxiliary and control current circuits, accommodating various conductor cross-sections.

Is the auxiliary switch block compliant with positively driven operation standards?

Yes, it complies with positively driven operation to IEC 60947-5-1, ensuring reliable performance in safety circuits.

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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