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Siemens 3RH1921-1FA22

Name: 3RH1921-1FA22
Brand: Siemens
SKU: 3RH1921-1FA22
Price: 23.92 GBP
Availability: InStock

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£23.92 (ex. VAT)

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Marvo Stock ID MV-1MGJ

HS Code 85365080

SKU 3RH1921-1FA22

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 350.00

Width (mm) 250.00

Height (mm) 110.00

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Specification & Description

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Commonly Asked Questions

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Specification & Description

Specification	Description
Part Number	3RH1921-1FA22
Alternative Part Number	3RH19211FA22
Manufacturer	Siemens
Part Description	This is a Siemens Auxiliary Contact Block with a voltage rating of 690V. It is designed to be attachable, providing flexibility and ease of use in various industrial applications.
Country of Origin	Not specified
Commodity Code	85365080

The Siemens 3RH1921-1FA22 is a robust and reliable auxiliary contact block, designed to enhance the functionality of your contactor relays and power contactors. This 4-pole attachable block, compliant with DIN EN 50005, features 2 Normally Open (NO) and 2 Normally Closed (NC) contacts, providing versatility for a range of industrial applications.

With an insulation voltage of 690V and a surge voltage resistance of 6kV, this part ensures safe and efficient operation even in demanding environments. The 3RH1921-1FA22 is designed to withstand ambient temperatures ranging from -25°C to +60°C during operation and -55°C to +80°C during storage, making it suitable for use in a wide range of climates.

The part boasts an impressive mechanical service life of 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V. This ensures longevity and reduces the need for frequent replacements, contributing to cost savings in the long run.

The Siemens 3RH1921-1FA22 auxiliary contact block is part of the renowned SIRIUS product range, known for its high-quality and reliable industrial control components. This part is a testament to Siemens' commitment to innovation and excellence in the field of industrial automation.

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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Advance Lifts

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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 is the purpose of this Siemens Auxiliary Contact Block?

The Siemens Auxiliary Contact Block 3RH1921-1FA22 is designed to be used with contactor relays and power contactors. It helps in the control of electrical circuits by providing additional switching contacts.

What are the technical specifications of this Auxiliary Contact Block?

This Auxiliary Contact Block is 4-pole with 2 Normally Open (NO) and 2 Normally Closed (NC) contacts. It has an insulation voltage of 690V and an impulse voltage resistance of 6kV. It operates within an ambient temperature range of -25 to +60 degrees Celsius.

What is the mechanical and electrical endurance of this part?

The Siemens Auxiliary Contact Block 3RH1921-1FA22 has a mechanical service life of approximately 10 million switching cycles and an electrical endurance of about 200,000 switching cycles at AC-15 at 230V.

What is the protection class of this Auxiliary Contact Block?

The Siemens Auxiliary Contact Block 3RH1921-1FA22 has a protection class IP20 on the front, which means it is protected against solid objects larger than 12.5mm but is not protected against liquids.

What is the operating current of the auxiliary contacts?

The operating current of the auxiliary contacts of the Siemens Auxiliary Contact Block 3RH1921-1FA22 at AC-12 is 10A at voltages of 24V, 230V, 400V, and 690V.

What is the contact reliability of this Auxiliary Contact Block?

The Siemens Auxiliary Contact Block 3RH1921-1FA22 has a contact reliability of one incorrect switching operation of 100 million switching operations at 17V, 5mA.

What is the storage temperature range for this part?

The Siemens Auxiliary Contact Block 3RH1921-1FA22 can be stored safely within a temperature range of -55 to +80 degrees Celsius.

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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