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Siemens 3RH2911-1HA12

Name: 3RH2911-1HA12
Brand: Siemens
SKU: 3RH2911-1HA12
Price: 17.81 GBP
Availability: InStock

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Marvo Stock ID MV-7CF2

HS Code 85365080

SKU 3RH2911-1HA12

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 300.00

Width (mm) 190.00

Height (mm) 150.00

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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	3RH2911-1HA12
Alternative Part Number	3RH29111HA12
Manufacturer	Siemens
Series	3RH
Type	Auxiliary Switch
Mounting	Snap On Mount
Current Rating	10 A
Dimensions	36 x 48.1 x 37.5 mm
Electrical Connection	Screw-type terminals
Number of Contacts	1 Normally Open (NO) + 2 Normally Closed (NC)
Suitable For	Contactor relay and power contactor
Protection Class	IP20 on the front
Ambient Operating Temperature	-25 ... +60 °C during operation
Mechanical Service Life	10,000,000 switching cycles typical
Electrical Endurance	200,000 switching cycles at AC-15, 230 V typical
Insulation Voltage	Rated value 690 V with degree of pollution 3
Surge Voltage Resistance	Rated value 6 kV
Compliance	Mirror contact acc. to IEC 60947-4-1, positively driven operation acc. to IEC 60947-5-1

The Siemens 3RH2911-1HA12 is a meticulously engineered auxiliary switch designed to complement contactor relays and power contactors within industrial control systems. This switch is part of the esteemed SIRIUS product family, renowned for its reliability and versatility in various applications.

Crafted for snap-on mounting, the 3RH2911-1HA12 boasts a compact form factor with dimensions of 36 x 48.1 x 37.5 mm, ensuring it integrates seamlessly into existing setups without demanding additional space. The switch features a robust construction that can withstand the rigours of industrial environments, with an IP20 protection class on the front, safeguarding against solid objects larger than 12.5 mm.

This auxiliary switch is equipped with one normally open (NO) and two normally closed (NC) contacts, providing flexibility in circuit design and control logic. It is capable of handling a 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 3RH2911-1HA12 operates reliably within a broad ambient temperature range, from -25 to +60 °C during operation and -55 to +80 °C during storage, ensuring consistent performance even in extreme conditions. Its insulation voltage is rated at 690 V with a degree of pollution 3, and it has a surge voltage resistance rated value of 6 kV, providing excellent electrical resilience.

This auxiliary switch is an essential component for those seeking a high-quality, reliable solution for enhancing the control and safety of their electrical systems. Its design and specifications ensure it meets the rigorous demands of industrial applications, making it a valuable addition to any control system configuration.

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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Thomas Roland Geaughan

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Irene

‘Fast delivery and prompt action.’

Advance Lifts

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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?

The auxiliary switch is designed to be used with contactor relays and power contactors, providing additional switching capabilities. It can be used to indicate the status of the main contactor or for interlocking purposes in control circuits.

Can this auxiliary switch be mounted directly onto a contactor?

Yes, it is designed for snap-on mounting directly onto compatible Siemens 3RH and 3RT contactor relays and power contactors.

What are the contact configurations available in this auxiliary switch?

This auxiliary switch comes with 1 Normally Open (NO) and 2 Normally Closed (NC) contacts, providing flexibility for various control circuit configurations.

What is the rated insulation voltage for this auxiliary switch?

The rated insulation voltage for this auxiliary switch is 690 V, with a degree of pollution 3, ensuring it can safely isolate the control circuit from higher voltages.

What is the mechanical service life of this auxiliary switch?

The mechanical service life of this auxiliary switch is typically 10 million switching cycles, indicating its durability and reliability over time.

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

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

What is the protection class of the front face of this auxiliary switch?

The front face of this auxiliary switch has a protection class of IP20, which protects against solid objects larger than 12.5 mm but not against liquids.

What are the ambient temperature ranges for storage and operation of this auxiliary switch?

The ambient temperature range for storage is -55 to +80 °C, and for operation, it is -25 to +60 °C, accommodating a wide range of environmental conditions.

What are the dimensions of this auxiliary switch?

The dimensions of this auxiliary switch are 36 mm in width, 37.5 mm in height, and 43.7 mm in depth, making it compact and suitable for various installations.

Does this auxiliary switch have any specific certifications or approvals?

Yes, this auxiliary switch complies with relevant international standards and holds certifications that confirm its suitability for industrial use.

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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