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Siemens 3RH1921-1HA31

Name: 3RH1921-1HA31
Brand: Siemens
SKU: 3RH1921-1HA31
Price: 20.66 GBP
Availability: OutOfStock

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Marvo Stock ID MV-1OAT

HS Code 85365080

SKU 3RH1921-1HA31

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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Specification & Description

Specification	Description
Part Number	3RH1921-1HA31
Alternative Part Number	3RH19211HA31
Manufacturer	Siemens
Part Description	This is a Siemens Auxiliary Switch Block, designed with 3NO & 1NC, and operates at 230 V ac, 10 A.
Short Description	The part is an Auxiliary switch block, EN 50012 Screw terminal, specifically designed for motor contactors.
Country of Origin	Not specified
Commodity Code	853650
Ambient Temperature	During storage: -55 … +80°C, During operation: -25 … +60°C
Mechanical Operating Cycles	Typical 10,000,000
Electrical Operating Cycles	Typical 200,000 at AC-15 / at 230 V
Insulation Voltage	Rated value 690 V
Impulse Voltage Resistance	Rated value 6 kV
Number of NC Contacts	1 (instantaneous switching)
Number of NO Contacts	3 (instantaneous switching)
Operating Current	At AC-12: 10 A at 24 V, 10 A at 230 V, Maximum: 10 A
Mounting Type	Snap-on mounting
Dimensions	Width: 44 mm, Height: 38 mm, Depth: 51 mm
Connections/Terminals	Screw-type terminals for auxiliary and control current circuit
Safety	Product function / mirror contact to IEC 60947-4-1: Yes
Certificates/Approvals	Not specified

The Siemens 3RH1921-1HA31 is a robust and reliable Auxiliary Switch Block designed to enhance the functionality of your motor contactors. This 4-pole switch block, compliant with EN 50012, features 3 Normally Open (NO) and 1 Normally Closed (NC) contacts, providing versatile switching options for your industrial applications.

With a rated voltage of 230 V ac and a current rating of 10 A, this switch block is capable of handling demanding electrical loads. It utilises a screw terminal connection, ensuring secure and stable connectivity for your auxiliary and control current circuits.

The 3RH1921-1HA31 is designed for snap-on mounting, making installation straightforward and efficient. Its compact dimensions (44mm width, 38mm height, and 51mm depth) allow for easy integration into your existing system without requiring significant space.

This Siemens Auxiliary Switch Block is designed to withstand a wide range of operating temperatures, from -25°C to +60°C, and offers impressive mechanical and electrical operating cycles, ensuring long-lasting performance and reliability.

Whether you're upgrading your current system or building a new one, the Siemens 3RH1921-1HA31 Auxiliary Switch Block is a high-quality component that delivers exceptional performance and durability.

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.

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.

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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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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 function of this auxiliary switch block?

The Siemens 3RH1921-1HA31 is an auxiliary switch block designed for motor contactors. It is used to control the state of the contactor and provide additional switching functions.

What are the technical specifications of this part?

This auxiliary switch block operates at 230 V ac and 10 A. It has 3 normally open (NO) and 1 normally closed (NC) contacts. It also features a screw terminal design as per EN 50012.

What is the operating temperature range for this part?

The Siemens 3RH1921-1HA31 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 3RH1921-1HA31 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 insulation voltage of this part?

The rated insulation voltage for the Siemens 3RH1921-1HA31, with a degree of pollution 3, is 690 V.

What is the mounting type for this part?

The Siemens 3RH1921-1HA31 uses a snap-on mounting type for easy installation.

What are the dimensions of this part?

The Siemens 3RH1921-1HA31 has a width of 44mm, a height of 38mm, and a depth of 51mm.

What type of electrical connection does this part use?

The Siemens 3RH1921-1HA31 uses screw-type terminals for auxiliary and control current circuits.

Does this part have any safety features?

Yes, the Siemens 3RH1921-1HA31 features a mirror contact to IEC 60947-4-1.

Part conditions explained

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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.

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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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