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Siemens 3TF6944-0CM7-Z

Name: 3TF6944-0CM7-Z
Brand: Siemens
SKU: 3TF6944-0CM7-Z
Price: 1752.05 GBP
Availability: InStock

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£1,752.05 (ex. VAT)

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Marvo Stock ID MV-IPFI

HS Code 85364900

SKU 3TF6944-0CM7-Z

Condition Used

Warranty 12 months

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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	3TF6944-0CM7-Z
Alternative Part Number	3TF69440CM7Z
Manufacturer	Siemens
Contactor Size	14
Number of Poles	3
Operating Current at AC-1, 400V	910 A
Operating Current at AC-3, 400V	820 A
Operating Performance at AC-3, 400V	450 kW
Operating Performance at AC-1, 400V	558 kW
Auxiliary Contacts	44 (4NO+4NC)
Control Supply Voltage Frequency	50/60 Hz
Control Supply Voltage at AC	200...240 V
Type of Voltage of Control Supply	AC
Mounting Type	Screw fixing
Side-by-Side Mounting	Yes
Width	230 mm
Height	295 mm
Depth	237 mm
Protection Class IP	IP00
Ambient Operating Temperature	-25°C to +55°C
Electrical Connection Type	Screw-type terminals for main current circuit and auxiliary/control current circuit
Approval	General Product Approval, Functional Safety/Safety of Machinery, Type Examination, Declaration of Conformity, Test Certificates
Reference Code	K (according to DIN 40719 extended according to IEC 204-2 / according to IEC 750), Q (according to DIN EN 61346-2)

The Siemens 3TF6944-0CM7-Z is a robust and high-performance contactor designed to meet the demands of industrial power control and switching applications. This contactor is part of the size 14 range and is capable of handling 3-pole AC-3 operations up to 450 kW at 400/380V (690V). It features auxiliary contacts configured as 44 (4NO+4NC), providing flexibility for various control circuit arrangements.

Constructed to withstand a wide ambient temperature range from -25°C to 55°C, the 3TF6944-0CM7-Z ensures reliable operation even in challenging environmental conditions. The contactor is equipped with screw-type terminals for both the main current circuit and auxiliary and control current circuits, facilitating secure and straightforward connections.

With a control supply voltage rated at 200 to 240V AC at 50/60Hz, this contactor is versatile and can be integrated into diverse electrical systems without the need for overvoltage damping in the main circuit. The mechanical design allows for screw fixing and side-by-side mounting, making it a practical choice for space-saving installations.

The Siemens 3TF6944-0CM7-Z is a testament to Siemens' commitment to quality and reliability in industrial control components, offering a dependable solution for managing high-capacity motors and loads.

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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Learn more about Marvo

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 size of the contactor?

The contactor is size 14, which is suitable for heavy-duty applications.

Can this contactor be used for AC-3 applications?

Yes, this contactor is designed for AC-3 applications and can handle up to 450 kW at 400/380V.

What is the operating current rating for this contactor in an AC-1 setup?

In an AC-1 setup at 400V, the operating current rating is 910 A at an ambient temperature of 40°C.

What type of auxiliary contacts does this contactor have?

This contactor comes with auxiliary contacts designated as 44, which means it has 4 normally open (NO) and 4 normally closed (NC) contacts.

What are the dimensions of this contactor?

The contactor has a width of 230 mm, a height of 295 mm, and a depth of 237 mm.

Is side-by-side mounting possible with this contactor?

Yes, side-by-side mounting is possible with this contactor, allowing for efficient use of space within a panel.

What is the control supply voltage range for this contactor?

The control supply voltage range for this contactor is 200 to 240V AC at both 50 and 60 Hz.

What type of electrical connection does this contactor support?

This contactor supports screw-type terminals for both the main current circuit and the auxiliary and control current circuit.

What is the protection class IP rating on the front of this contactor?

The protection class IP rating on the front of this contactor is IP00.

What is the ambient temperature range for operating this contactor?

The ambient temperature range for operating this contactor is between -25°C and 55°C.

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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