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Siemens 3TH2040-0BB4

Name: 3TH2040-0BB4
Brand: Siemens
SKU: 3TH2040-0BB4
Price: 34.84 GBP
Availability: InStock

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£34.84 (ex. VAT)

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Marvo Stock ID MV-262M

HS Code 85364190

SKU 3TH2040-0BB4

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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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	3TH2040-0BB4
Alternative Part Number	3TH20400BB4
Manufacturer	Siemens
Product Type	Contactor Relay
Number of Contacts	4 Normally Open (NO)
Voltage Type	DC
Control Supply Voltage	24 V DC
Operating Current at AC-15	4 A at 230 V, 3 A at 400 V
Size of Contactor	0
Protection Class IP	IP20
Mounting Type	Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Dimensions (Height x Width x Depth)	48 mm x 45 mm x 68 mm
Connection Type	Screw-type terminals
Ambient Operating Temperature	-25 to +55 °C
Reference Code	According to IEC 81346-2: K
B10 Value	400,000 operations at 0.3 x Ie
T1 Value	20 years (proof test interval or service life according to IEC 61508)

The Siemens 3TH2040-0BB4 is a high-quality contactor relay designed for a variety of industrial applications. This robust component is engineered to facilitate reliable switching of control signals within electrical circuits. With a compact size 0 form factor, it is suitable for space-conscious installations.

Crafted to operate at a control supply voltage of 24 V DC, the 3TH2040-0BB4 ensures consistent performance in a range of environments, with an operational temperature range of -25 to +55 °C. It features four normally open (NO) contacts, making it a versatile choice for many control circuit arrangements.

The device is housed in a sturdy enclosure with an IP20 protection class on the front, safeguarding the internal components from solid objects and ensuring a long service life. The contactor relay is designed for easy installation, with screw and snap-on mounting options onto a 35 mm standard mounting rail according to DIN EN 50022.

With a focus on safety, the 3TH2040-0BB4 is finger-safe, providing protection against electrical shock during handling and operation. It is a reliable choice for those seeking a durable and efficient solution for their control 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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Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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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.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

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 type of device is the Siemens Contactor Relay?

The Siemens Contactor Relay is an auxiliary contactor designed for controlling, switching, and signalling circuits within industrial applications. It features 4 normally open (NO) contacts and operates with a DC control supply voltage.

Can this contactor relay be mounted on a DIN rail?

Yes, the Siemens Contactor Relay is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022, which makes it suitable for DIN rail installations.

What is the protection class of the front side of the contactor relay?

The front side of the contactor relay is rated at IP20, providing protection against solid objects larger than 12.5 mm but not against water.

What is the ambient operating temperature range for this contactor relay?

The ambient operating temperature range for the contactor relay is between -25°C and +55°C, making it suitable for a variety of industrial environments.

What is the control supply voltage required for this contactor relay?

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

What are the dimensions of the contactor relay?

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

What type of electrical connection does the contactor relay use for its auxiliary and control current circuit?

The contactor relay uses screw-type terminals for its electrical connections, providing a secure and reliable connection for auxiliary and control current circuits.

What is the B10 value for this contactor relay and what does it signify?

The B10 value for the contactor relay is 400,000 at 0.3 times the rated operational current (Ie), which indicates the number of operations before 10% of components typically fail under a high demand rate.

What is the T1 value for the proof test interval or service life according to IEC 61508?

The T1 value for the proof test interval or service life according to IEC 61508 is 20 years, indicating the designed duration for reliable operation before a proof test or replacement is recommended.

How can I ensure protection against electrical shock when using this contactor relay?

The contactor relay is designed with finger-safe terminals to provide protection against direct contact with electrical parts, reducing the risk of electrical shock during installation or maintenance.

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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