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Siemens 3TH2031-0BB4

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3TH2031-0BB4

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Marvo Stock ID MV-7IR0
HS Code 85364190
SKU 3TH2031-0BB4
Condition Used
Warranty 12 months
Weight (kg) 2.00
Length (mm) 320.00
Width (mm) 250.00
Height (mm) 250.00
EAN 4011209045668

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Specification & Description

Specification Description
Part Number 3TH2031-0BB4
Alternative Part Number 3TH20310BB4
Manufacturer Siemens
Product Type Contactor Relay
Contact Configuration 3 Normally Open (NO); 1 Normally Closed (NC)
Rated Operational Current 4 A at AC-15, 230 V; 3 A at AC-15, 400 V
Control Supply Voltage 24 V DC
Size of Contactor 0
Ambient Operating Temperature -25 … +55 °C
Protection Class IP20
Reference Code K (according to DIN EN 61346-2)
Mounting Type Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Dimensions (H x W x D) 48 mm x 45 mm x 68 mm
Electrical Connection Screw-type terminals
Protection Against Electric Shock Finger-safe
B10 Value 400,000 (with 0.3 x Ie)
T1 Value for Proof Test Interval or Service Life 20 years (according to IEC 61508)
Commodity Code 853649

The Siemens 3TH2031-0BB4 is a high-quality contactor relay designed to meet the demands of various industrial applications. This component is engineered to facilitate reliable switching of control signals within electrical circuits. It features a configuration of 3 normally open (NO) and 1 normally closed (NC) contacts, making it versatile for integration into numerous control systems.

With a control voltage of 24 V DC, this contactor relay ensures efficient operation and compatibility with a wide range of control voltages commonly used in the industry. The screw terminal design allows for secure and straightforward connections, ensuring a robust installation and maintenance process.

The compact size of the contactor, conforming to EN 50011 standards, allows for efficient use of space within control cabinets, while the IP20 protection class on the front provides a basic level of protection against solid objects. This makes the Siemens 3TH2031-0BB4 suitable for use in controlled environments where direct contact with the device is not a concern.

The operating current ratings at AC-15 are 4 A at 230 V and 3 A at 400 V, which are indicative of the relay's capability to handle moderate current loads, thus ensuring reliable performance in a variety of electrical applications.

This contactor relay is also designed for easy mounting, with options for both screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022, which is a common mounting standard in the industry.

The Siemens 3TH2031-0BB4 is a phased-out product, and its successor is the SIRIUS 3RH21 series. However, it remains a reliable choice for those looking to maintain or replace existing installations with a proven and trusted solution.

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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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.

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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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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 type of device is this Siemens contactor relay?

The Siemens contactor relay is an electromechanical switching device designed for controlling power circuits. It features 3 normally open (NO) and 1 normally closed (NC) contacts, suitable for various industrial applications.

Can this contactor relay be used in safety applications?

While the contactor relay is designed to meet high reliability standards, its suitability for safety applications depends on the specific requirements of the system. It is advisable to consult the relevant safety standards and possibly look for devices specifically certified for safety applications.

What is the control supply voltage for this contactor relay?

The control supply voltage for this contactor relay is 24 V DC, which is the rated value for its DC operation.

What is the operating current rating for this contactor relay?

The operating current rating for this contactor relay at AC-15 is 4 A at 230 V and 3 A at 400 V.

What are the mounting options for this contactor relay?

This contactor relay can be mounted using screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.

What is the protection class of this contactor relay?

The protection class of this contactor relay is IP20, which indicates protection against solid objects larger than 12.5 mm but not against water.

What are the dimensions of this contactor relay?

The dimensions of the contactor relay are 45 mm in width, 48 mm in height, and 68 mm in depth.

What type of terminals does this contactor relay have?

This contactor relay is equipped with screw-type terminals for its auxiliary and control current circuits.

Is there a successor model for this contactor relay?

Yes, there is a successor model for the 3TH2031-0BB4 contactor relay. It is part of the SIRIUS 3RH21 series.

How can I ensure the contactor relay is finger-safe?

The design of this contactor relay is finger-safe, meaning it provides protection against accidental electrical shock by preventing direct contact with live parts.

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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.

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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