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Siemens 3TX4440-2A

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3TX4440-2A

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Marvo Stock ID MV-7JAR
HS Code 85365080
SKU 3TX4440-2A
Condition New sealed
Warranty 12 months
Weight (kg) 0.03
Length (mm) 51.50
Width (mm) 12.00
Height (mm) 70.00

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Specification & Description

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Specification & Description

Specification Description
Part Number 3TX4440-2A
Alternative Part Number 3TX44402A
Manufacturer Siemens
Product Type Auxiliary Switch Block
Number of Contacts 4 Normally Open (NO)
Rated Operational Voltage 230 V ac
Rated Operational Current 10 A
Insulation Voltage 690 V
Impulse Voltage Resistance 6 kV
Mechanical Operating Cycles Typically 10,000,000
Ambient Operating Temperature Range -25 … +55 °C
Storage Temperature Range -55 … +80 °C
Protection Class IP20
Mounting Type Snap-on mounting
Width 12 mm
Height 70 mm
Depth 51.5 mm
Connection Type Screw-type terminals
Conductor Cross-section Range 2x (0.5 ... 1.0 mm²), 2x (0.75 ... 2.5 mm²) for finely stranded with conductor end processing
AWG Conductor Range 2x (18 ... 12) for auxiliary contacts
Compliance Positively driven operation to IEC 60947-5-1
Commodity Code 85365080

The Siemens 3TX4440-2A is a high-quality auxiliary switch block designed to complement contactor relays and power contactors in a variety of industrial applications. This component is engineered to facilitate reliable switching operations within electrical circuits, ensuring seamless control and management of connected devices.

Crafted with precision, the 3TX4440-2A features four normally open (NO) contacts, capable of handling an operating current of up to 10 A at 230 V ac. Its robust construction allows it to withstand mechanical operating cycles typically up to 10 million, highlighting its durability and long service life.

The switch block is equipped with screw terminals, providing a secure and stable connection for auxiliary and control current circuits. It is designed for snap-on mounting, which simplifies installation and maintenance processes. With a compact width of 12 mm, height of 70 mm, and depth of 51.5 mm, it integrates seamlessly into electrical systems without requiring excessive space.

Safety is a paramount consideration in the design of the 3TX4440-2A, which includes features such as positively driven operation compliant with IEC 60947-5-1 standards. This ensures that the switch block operates reliably within the safety parameters of industrial control systems.

The Siemens 3TX4440-2A auxiliary switch block is a testament to the brand's commitment to quality, reliability, and performance in industrial control products. It is an essential component for professionals seeking to enhance the functionality and efficiency of their electrical 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.

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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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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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Frequently Asked Questions

What is the voltage rating for this auxiliary switch block?

The auxiliary switch block is rated for an insulation voltage of 690 V and can operate with a control voltage of 230 V ac.

How many mechanical operating cycles can this auxiliary switch block withstand?

This auxiliary switch block is designed to withstand typically 10 million mechanical operating cycles.

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

The auxiliary switch block can operate within an ambient temperature range of -25 °C to +55 °C.

Can this auxiliary switch block be used with DC circuits?

Yes, the 3TX4440-2A can be used with DC circuits and has different operating currents depending on the voltage, ranging from 10 A at 24 V to 0.48 A at 220 V.

What type of terminals does this auxiliary switch block have for connection?

The auxiliary switch block is equipped with screw-type terminals for secure and reliable connections.

Is the auxiliary switch block equipped with any NC contacts?

No, the auxiliary switch block does not have any normally closed (NC) contacts; it comes with 4 normally open (NO) contacts.

What is the width of the auxiliary switch block for mounting purposes?

The width of the auxiliary switch block is 12 mm, making it compact and suitable for various mounting configurations.

Does this auxiliary switch block have a protection class rating?

Yes, the front of the auxiliary switch block has a protection class rating of IP20.

What is the function of a positively driven operation in this auxiliary switch block?

A positively driven operation ensures that the contacts within the auxiliary switch block follow each other in such a way that they cannot be in conflicting states, enhancing safety and reliability in control circuits.

How can I mount this auxiliary switch block?

The auxiliary switch block is designed for snap-on mounting, which allows for quick and easy installation onto compatible devices.

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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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