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Siemens

3RT1044-1AP04

£116.81 (ex. VAT)

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Marvo Stock ID MV-1WE4
HS Code 85364900
SKU 3RT1044-1AP04
Condition Used
Warranty 12 months
Weight (kg) 1.50
Length (mm) 188.00
Width (mm) 70.00
Height (mm) 146.00
EAN 4011209307810

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Specification & Description

Specification Description
Part Number 3RT1044-1AP04
Alternative Part Number 3RT10441AP04
Manufacturer Siemens
Product Type Power Contactor
Contact Configuration 3 Normally Open (NO)
Rated Operational Current AC-3 65 A, AC-4 55 A
Rated Operational Voltage 400 V
Control Supply Voltage 230 V AC, 50 Hz
Auxiliary Contacts 2 Normally Open (NO) + 2 Normally Closed (NC)
Size S3
Connection Type Screw Terminal
Degree of Protection IP20
Installation Altitude Up to 2,000 m above sea level
Ambient Operating Temperature -25 … +60 °C
Mechanical Operating Cycles 10,000,000 typical for contactor, 5,000,000 typical for contactor with electronics-compatible auxiliary switch block
Insulation Voltage (Rated) 1,000 V
Surge Voltage Resistance Rated value 6 kV
Pollution Degree 3
Commodity Code 853649

The Siemens 3RT1044-1AP04 Power Contactor is a robust and reliable switching device designed for controlling motors and managing loads in industrial applications. This contactor is part of the SIRIUS product family, known for its high performance and compatibility with a wide range of systems.

With a current rating of 65 A and the capability to handle motor power of up to 30 kW at 400 V in AC-3 usage categories, this contactor is well-suited for demanding tasks. It operates at a control supply voltage of 230 V AC, 50 Hz, making it ideal for integration into existing power networks in the UK and other regions with similar electrical standards.

The contactor features a 3-pole design and includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility for various control circuit configurations. The screw terminal connection ensures a secure and durable connection, which is vital for consistent performance and longevity.

Designed with a size S3 frame, the 3RT1044-1AP04 contactor is compact enough to fit in standard control cabinets while offering the robustness needed for industrial environments. It has an IP20 protection rating on the front, indicating a basic level of protection against solid objects.

This contactor is engineered to deliver high mechanical endurance, with up to 10 million operating cycles, ensuring a long service life and reducing the need for frequent replacements. Its straightforward design allows for easy installation and maintenance, making it a practical choice for a variety of industrial applications, from manufacturing to infrastructure.

The Siemens 3RT1044-1AP04 Power Contactor is a testament to Siemens' commitment to quality, reliability, and innovation in industrial control technology.

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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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 are the main characteristics of this power contactor?

This power contactor is a 3-pole device with a rating of AC-3 65 A, and it can handle 30 kW at 400 V. It operates with a control voltage of 230 V AC at 50 Hz and features 2 normally open (NO) and 2 normally closed (NC) contacts. It's classified as Size S3 and uses a screw terminal connection.

Can this contactor be used in high-altitude installations?

Yes, the contactor can be used at installation altitudes up to 2,000 meters above sea level without derating.

What is the degree of protection provided by the front of the contactor?

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

What is the mechanical service life of the contactor?

The mechanical service life of the contactor is typically 10 million operating cycles, ensuring long-term reliability in various applications.

What is the ambient temperature range for operating this contactor?

The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius, making it suitable for a variety of environmental conditions.

What type of connection does this contactor use for the main circuit?

The contactor uses a screw terminal connection for the main circuit, which provides a secure and reliable means of connecting the power cables.

How many auxiliary contacts does this contactor have?

This contactor comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts for additional control functionality.

Is this contactor suitable for controlling motors?

Absolutely, this contactor is designed for motor control applications and is rated for AC-3 usage, which is typical for starting and stopping motors.

What is the insulation voltage rating of this contactor?

The insulation voltage rating of the contactor is 1,000 V, which indicates the voltage the contactor can withstand without risk of electrical breakdown.

Can this contactor be used for both AC and DC applications?

While primarily designed for AC applications, the contactor also has ratings for DC-1 and DC-3 usage, allowing for some DC applications as well.

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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.

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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.