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Siemens 3TX4404-0A

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3TX4404-0A

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Marvo Stock ID MV-7821
HS Code 85365080
SKU 3TX4404-0A
Condition Used
Warranty 12 months
Weight (kg) 0.05
Length (mm) 25.00
Width (mm) 45.00
Height (mm) 24.00

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Specification & Description

Specification Description
Part Number 3TX4404-0A
Alternative Part Number 3TX44040A
Manufacturer Siemens
Voltage Rating 690 V (Insulation)
Mounting Type Snap-On Mount
Contact Configuration 4NC (4 Normally Closed contacts)
Protection Rating IP20
Terminal Type Screw
Mechanical Operating Cycles 10,000,000 cycles
Current Rating 10 A
Dimensions 45 x 25 x 24 mm
Suitable For Contactor relays EN 50011, Ident. no. 44E
Ambient Operating Temperature -25 … +55 °C during operation, -55 … +80 °C during storage
Insulation Voltage Rated at 690 V with degree of pollution 3
Impulse Voltage Resistance Rated at 6 kV
Auxiliary Circuit 4 NC contacts for instantaneous switching
Operating Current of Contacts 10 A at 24 V, 10 A at 230 V, 5.6 A at 400 V, 2.3 A at 690 V (AC-15 rating)
DC Operating Current 4 A at 24 V, 1.1 A at 110 V, 0.5 A at 220 V (DC-12 rating)
Mounting Dimensions Width: 45 mm, Height: 24 mm, Depth: 25 mm
Electrical Connection Screw-type terminals suitable for finely stranded and AWG conductors
Product Function Positively driven operation according to IEC 60947-5-1
Commodity Code 853650

The Siemens 3TX4404-0A is a high-quality auxiliary switch block designed to enhance the functionality of contactor relays. This component is engineered to comply with EN 50011 standards and carries the identification number 44E. It features four normally closed (NC) contacts, ensuring reliable and secure switching operations within your electrical circuits.

Constructed for durability, the 3TX4404-0A boasts an impressive mechanical service life of up to 10 million operating cycles, making it a robust choice for sustained use in industrial environments. The switch block operates with an insulation voltage rated at 690 V, with a surge voltage resistance of 6 kV, providing a high level of protection against electrical disturbances.

The unit is designed with user safety in mind, offering an IP20 protection class on the front, which safeguards against the ingress of solid objects. It is also capable of withstanding a wide range of ambient temperatures, from as low as -55°C during storage to +55°C during operation, ensuring consistent performance under varying conditions.

Installation is made straightforward with its snap-on mounting design, and the switch block's dimensions are compact, measuring 45 mm in width, 24 mm in height, and 25 mm in depth. This allows for easy integration into existing setups without the need for extensive modifications.

For electrical connections, the 3TX4404-0A utilises screw-type terminals, which are compatible with a range of conductor cross-sections, providing flexibility and convenience during installation. The switch block is also designed with positively driven operation according to IEC 60947-5-1, ensuring reliable separation of contacts for safety.

The Siemens 3TX4404-0A auxiliary switch block is an essential component for those seeking to enhance the control and safety of their contactor relay applications in commercial and industrial settings.

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 is the insulation voltage rating for this auxiliary switch block?

The insulation voltage rating for the auxiliary switch block is 690 V, with a degree of pollution 3.

Can you describe the mounting type for this component?

The component features a snap-on mounting type, which allows for easy and secure installation onto compatible devices.

What is the IP protection class of this auxiliary switch block?

This auxiliary switch block has an IP protection class of IP20, indicating protection against solid objects larger than 12.5 mm but not against liquids.

What are the dimensions of this auxiliary switch block?

The dimensions of the auxiliary switch block are 45 mm in width, 24 mm in height, and 25 mm in depth.

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

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

What type of terminals does this auxiliary switch block have?

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

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

The ambient temperature range for operating the auxiliary switch block is between -25 °C and +55 °C.

How many normally closed (NC) contacts does this auxiliary switch block have?

The auxiliary switch block has 4 normally closed (NC) contacts.

What is the maximum operating current for the auxiliary contacts at AC-12?

The maximum operating current for the auxiliary contacts at AC-12 is 10 A.

Does this auxiliary switch block have positively driven operation according to IEC 60947-5-1?

Yes, the auxiliary switch block has a product function of positively driven operation in accordance with IEC 60947-5-1.

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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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