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Siemens 3RH1921-1LA11

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Marvo Stock ID MV-7C80

HS Code 85365080

SKU 3RH1921-1LA11

Warranty 12 months

Weight (lbs) 2.20

Length (inches) 8.27

Width (inches) 6.69

Height (inches) 2.36

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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	3RH1921-1LA11
Alternative Part Number	3RH19211LA11
Manufacturer	Siemens
Part Description	This is an Auxiliary Switch Block designed for motor contactors with cable entry at the top.
Voltage	The insulation voltage is 690 V.
Mounting	It features a snap-on mounting design.
Contact Configuration	The switch block has 1NO/1NC contact configuration.
Current Rating	It has a current rating of 10 A.
Dimensions	The dimensions of the switch block are 44 x 51 x 38 mm.
Connection Type	The switch block uses screw-type terminals for auxiliary and control current circuit.
Operating Temperature	It can operate in temperatures ranging from -25 to +60 degrees Celsius.
Storage Temperature	It can be stored in temperatures ranging from -55 to +80 degrees Celsius.
Mechanical Operating Cycles	The typical mechanical operating cycles are 10,000,000.
Electrical Operating Cycles	The typical electrical operating cycles at AC-15 / at 230 V are 200,000.
Protection Class	The protection class on the front is IP20.
Commodity Code	The commodity code for this part is 853650.

The Siemens 3RH1921-1LA11 is a high-quality Auxiliary Switch Block designed for optimal performance in industrial settings. This robust component features a snap-on mounting design, making it easy to install in a variety of applications. With an insulation voltage of 690V and a rated operating current of 10A, it ensures reliable operation even in demanding conditions. The switch block is designed for motor contactors, with cable entry at the top for easy wiring. Its compact dimensions of 44 x 51 x 38 mm make it a versatile choice for space-constrained environments. The 3RH1921-1LA11 is part of Siemens' SIRIUS product line, known for its durability and reliability. This auxiliary switch block is a great choice for enhancing the efficiency and safety of your industrial automation systems.

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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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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Frequently Asked Questions

What is the function of this auxiliary switch block?

The Siemens auxiliary switch block is designed to be used with motor contactors. It helps in controlling the operation of the motor by providing additional switching functions.

What are the technical specifications of this auxiliary switch block?

This auxiliary switch block has an insulation voltage of 690V and a rated operating current of 10A. It features a snap-on mounting design and has dimensions of 44 x 51 x 38 mm. It also has 1NO/1NC contact configuration.

Where is the cable entry located on this auxiliary switch block?

The cable entry for this Siemens auxiliary switch block is located at the top.

What is the mounting type of this auxiliary switch block?

This auxiliary switch block from Siemens features a snap-on mounting design, which makes it easy to install and remove.

What is the operating temperature range for this auxiliary switch block?

The Siemens auxiliary switch block can operate effectively in temperatures ranging from -25°C to +60°C.

What is the protection class of this auxiliary switch block?

The Siemens auxiliary switch block has a protection class IP20 on the front, which provides a certain level of protection against solid objects and touch by hands.

What is the contact reliability of this auxiliary switch block?

The contact reliability of this auxiliary switch block is one incorrect switching operation of 100 million switching operations (17 V, 5 mA).

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

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

What type of connection does this auxiliary switch block use?

This auxiliary switch block uses screw-type terminals for auxiliary and control current circuit.

What is the product function of this auxiliary switch block?

The Siemens auxiliary switch block has a mirror contact function to IEC 60947-4-1 when used with 3RT1.

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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