Image shown may not reflect the final product
Check similar products or call us on +44 20 4570 3439 for assistance
1 ready to ship
Image shown may not reflect the final product
Check similar products or call us on +44 20 4570 3439 for assistance
Express delivery
Lightning fast delivery if ordered within 00:00:00
Hassle-free returns
No hidden fees or duties
Swift dispatch and delivery
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.
Read more...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.
Read more...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.
Read more...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.
Read more...How do I create an account?
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.
Read more...Peace of mind with every purchase
Anna
‘I can recommend quick, efficient, and professional.’
Julien
‘Perfect quick delivery, good service.’
Blažej Knežo
‘Quick response and fast delivery of the product.’
Irene
‘Fast delivery and prompt action.’
Muswalin
‘Good packing, quickly delivery and responsible.’
Advance Lifts
‘Great customer service , we needed some assistance quickly and received it.’
Martin Ruml
‘Rapid delivery.’
Kayden
‘Services is great.’
Ms. Mia
‘Quick response, good item, delivery on schedule.’
Similar Products
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 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.
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.
