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Siemens 3RH1921-1XA22-0MA0

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3RH1921-1XA22-0MA0

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Marvo Stock ID MV-7C85
HS Code 85365080
SKU 3RH1921-1XA22-0MA0
Warranty 12 months
Weight (kg) 0.04
Length (mm) 51.00
Width (mm) 44.00
Height (mm) 38.00

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Specification & Description

Specification Description
Part Number 3RH1921-1XA22-0MA0
Alternative Part Number 3RH19211XA220MA0
Manufacturer Siemens
Product Type Auxiliary Switch Block
Suitable Applications Contactor relay and power contactor
Number of Contacts 2 Normally Open (NO), 2 Normally Closed (NC)
Connection Type Screw-type terminals
Mounting Type Snap-on mounting
Protection Class IP IP20
Ambient Operating Temperature Range -25 ... +60 °C during operation, -55 ... +80 °C during storage
Mechanical Service Life Typically 10,000,000 switching cycles
Electrical Endurance Typically 200,000 switching cycles at AC-15, 230 V
Contact Reliability 1 faulty switching per 100 million (17 V, 1 mA) for auxiliary contacts
Insulation Voltage Rated at 690 V with degree of pollution 3
Surge Voltage Resistance Rated value 6 kV
Auxiliary Circuit Current Rating At 24 V: 10 A, At 60 V: 3.5 A, At 110 V: 1.3 A, At 220 V: 0.9 A, At 440 V: 0.2 A, At 600 V: 0.1 A
Dimensions (Width x Height x Depth) 44 mm x 38 mm x 51 mm
Product Function Mirror contact according to IEC 60947-4-1 (with 3RT1)
Certificates/Approvals General Product Approval, Functional Safety/Safety of Machinery, Declaration of Conformity

The Siemens 3RH1921-1XA22-0MA0 is a high-quality auxiliary switch block designed for seamless integration with contactor relays and power contactors, specifically within the SIRIUS product range. This component is engineered to facilitate reliable switching operations in a variety of industrial applications.

Crafted with precision, the switch block features 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatility for complex circuit configurations. The contacts are arranged with ordinal numbers 5 to 8, adhering to DIN EN 50012 standards, and are equipped with a 4-pole screw connection for secure and straightforward installation.

The auxiliary switch block boasts an impressive mechanical service life of typically 10 million switching cycles, ensuring longevity and consistent performance in demanding environments. Its electrical endurance is equally robust, with a typical rating of 200,000 switching cycles at AC-15, 230 V.

Safety and reliability are paramount in the design of the 3RH1921-1XA22-0MA0, which offers an insulation voltage rated at 690 V with a degree of pollution 3, and a surge voltage resistance rated at 6 kV. The switch block maintains contact reliability with a mere one faulty switching operation per 100 million, at 17 V and 1 mA, highlighting its precision and dependability.

Installation is made efficient with its snap-on mounting design, and the switch block's dimensions are compact, with a width of 44 mm, height of 38 mm, and depth of 51 mm, allowing for easy integration into existing systems without the need for extensive modifications.

The 3RH1921-1XA22-0MA0 is designed with screw-type terminals that accommodate a range of conductor cross-sections, ensuring compatibility with various wiring requirements. It also meets the mirror contact requirements according to IEC 60947-4-1 when used with 3RT1 contactors, although it does not support positively driven operation as per IEC 60947-5-1.

Overall, the Siemens 3RH1921-1XA22-0MA0 auxiliary switch block is a reliable and versatile component that offers exceptional performance and durability for industrial control 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.

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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.

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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.

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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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Frequently Asked Questions

What is the function of this auxiliary switch block?

The auxiliary switch block is designed to provide additional switching capabilities to contactor relays and power contactors. It features 2 normally open (NO) and 2 normally closed (NC) contacts that can be used for various control and signalling functions within an electrical circuit.

Can this auxiliary switch block be used with any contactor?

No, this auxiliary switch block is specifically designed for use with Siemens 3RT1 contactors, and it is suitable for sequence numbers 5 to 8.

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

The operating temperature range for this auxiliary switch block is from -25°C to +60°C during operation, and it can be stored at temperatures ranging from -55°C to +80°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 switching cycles, indicating its durability and longevity.

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

The electrical endurance of this auxiliary switch block at AC-15, 230 V is typically around 200,000 switching cycles.

How reliable are the contacts within this auxiliary switch block?

The contacts within this auxiliary switch block are highly reliable, with a contact reliability of 1 faulty switching per 100 million operations at 17 V, 1 mA.

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 690 V AC.

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

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

How is this auxiliary switch block mounted?

This auxiliary switch block is designed for snap-on mounting, making it easy to install or replace on compatible contactors.

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

This auxiliary switch block supports screw-type terminals for its electrical connections, accommodating various conductor cross-sections for auxiliary contacts.

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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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