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Siemens 3RH1921-1CA10

Name: 3RH1921-1CA10
Brand: Siemens
SKU: 3RH1921-1CA10
Price: 18.92 GBP
Availability: InStock

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£18.92 (ex. VAT)

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Marvo Stock ID MV-1MV5

HS Code 85365080

SKU 3RH1921-1CA10

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

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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	3RH1921-1CA10
Alternative Part Number	3RH19211CA10
Manufacturer	Siemens
Voltage Rating	690 V ac, 600 V dc
Contact Configuration	1NO
Mounting Style	Snap-On
Width	10 mm
Height	38 mm
Depth	51 mm
Connection Type	Screw-type terminals
Conductor Cross-Section	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Product Function	Mirror contact to IEC 60947-4-1
Commodity Code	85365080
Country of Origin	Not specified
Short Description	Front-side auxiliary switch, 1 NC contact
Detailed Description	The Siemens 3RH1921-1CA10 is a front-side auxiliary switch with a snap-on mounting style. It has a voltage rating of 690 V ac and 600 V dc and a contact configuration of 1NO. The switch is designed with screw-type terminals for auxiliary and control current circuit, and it can accommodate a conductor cross-section of 2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²). The product function includes a mirror contact to IEC 60947-4-1. The part dimensions are 10 mm in width, 38 mm in height, and 51 mm in depth.

The Siemens 3RH1921-1CA10 is a high-quality auxiliary switch block designed for optimal performance in industrial settings. This front-side auxiliary switch features a single normally open (NO) contact and is designed for snap-on mounting, ensuring easy installation. With a protection class IP20, it offers a degree of protection against touch by fingers and objects not greater than 12mm.

This Siemens auxiliary switch block is suitable for use with contactor relays and power contactors, making it a versatile addition to your automation system. It 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.

The 3RH1921-1CA10 operates efficiently within an ambient temperature range of -25 to +60 degrees Celsius during operation and -55 to +80 degrees Celsius during storage. It also features screw-type terminals for auxiliary and control current circuits, accommodating a wide range of conductor cross-sections.

This Siemens auxiliary switch block is a reliable and durable choice for your industrial automation needs, offering consistent performance and longevity.

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.

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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 main function of this auxiliary switch block?

The Siemens 3RH1921-1CA10 is an auxiliary switch block primarily used for switching motors. It's designed to provide additional control and safety functions when used with contactors.

What are the technical specifications of this part?

This auxiliary switch block operates with an insulation voltage of 690V at AC and a surge voltage resistance of 6kV. It has a mechanical service life of approximately 10 million switching cycles and an electrical endurance of 200,000 switching cycles at AC-15 at 230V.

What type of connection does this part use?

The Siemens 3RH1921-1CA10 uses a screw-type terminal for its auxiliary and control current circuit.

What is the operating temperature range for this part?

This part can operate effectively in temperatures ranging from -25°C to +60°C. It can be stored in temperatures between -55°C and +80°C.

What is the protection class of this part?

The Siemens 3RH1921-1CA10 has a protection class IP20 on the front, providing a certain level of protection against solid objects and no protection against liquids.

What is the contact reliability of this part?

The contact reliability of the Siemens 3RH1921-1CA10 is quite high, with only one faulty switching operation per 100 million operations at 17V, 1mA.

What is the size of this part?

The Siemens 3RH1921-1CA10 has a width of 10mm, a height of 38mm, and a depth of 51mm.

What type of mounting does this part use?

This part uses snap-on mounting, making it easy to install and remove as needed.

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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