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Siemens 3RT1056-6NF36

Name: 3RT1056-6NF36
Brand: Siemens
SKU: 3RT1056-6NF36
Price: 435.32 GBP
Availability: OutOfStock

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Marvo Stock ID MV-7DCO

HS Code 85364900

SKU 3RT1056-6NF36

Warranty 12 months

Weight (kg) 4.00

Length (mm) 390.00

Width (mm) 300.00

Height (mm) 250.00

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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	3RT1056-6NF36
Manufacturer	Siemens
Type	Power Contactor
Control Supply Voltage	96 to 127 V ac/dc
Operating Power at AC-3	90 kW at 400 V
Operating Current at AC-1	215 A at 400 V
Number of Poles	3 Poles
Size	S6
Auxiliary Contacts	2 NO (Normally Open) + 2 NC (Normally Closed)
Connection Type	Busbar connections, screw terminal
Operating Frequency	Maximum 800 1/h at AC-1, 750 1/h at AC-3
Mechanical Service Life	Typical 10 million switching cycles
Operating Voltage at AC-3	Maximum 1000 V
Operational Current at AC-3	185 A at 400 V
Short-Circuit Protection	gG: 355 A (690 V, 100 kA) for main circuit, gG: 10 A (500 V, 1 kA) for auxiliary switch
Mounting Position	Vertical mounting surface +/-90° rotatable, +/- 22.5° tiltable
Mounting Type	Screw fixing
Dimensions (H x W x D)	172 mm x 120 mm x 170 mm
Required Spacing	Forwards 20 mm, Upwards 10 mm, Downwards 10 mm, At the side 10 mm (for live parts)
Protection Class IP	IP00; IP20 with box terminal/cover
Ambient Operating Temperature	-25 to +60 °C
Installation Altitude	Maximum 2000 m above sea level
Shock Resistance	At AC 8.5g / 5 ms, 4.2g / 10 ms; At DC 8.5g / 5 ms, 4.2g / 10 ms
Surge Voltage Resistance	Main circuit rated value 8 kV, Auxiliary circuit rated value 6 kV
Product Approvals	General Product Approval EMC

The Siemens 3RT1056-6NF36 is a robust power contactor designed to handle high current applications with ease. This contactor is engineered for AC-3 utilisation categories, making it suitable for starting and stopping AC motors. It boasts an impressive operational current of 185 A and can manage motor power up to 90 kW at 400 V in AC-3 applications, ensuring reliable performance in demanding industrial environments.

Crafted with three poles and equipped with both normally open (NO) and normally closed (NC) auxiliary contacts, this contactor offers flexibility for various control circuit configurations. The device operates with a control supply voltage range of 96 to 127 V ac/dc, which, combined with its electronic drive and PLC interface, integrates seamlessly into a wide range of control systems.

The Siemens 3RT1056-6NF36 is designed with busbar connections and a screw terminal, facilitating straightforward installation and maintenance. Its compact dimensions allow for efficient use of space inside electrical cabinets, while the option for side-by-side mounting provides additional installation versatility.

With a mechanical service life of up to 10 million switching cycles, this contactor is built to last, ensuring long-term reliability and reduced maintenance requirements. Its operational temperature range from -25 to +60 °C allows it to function effectively in various working conditions, further enhancing its suitability for a wide range of industrial applications.

Overall, the Siemens 3RT1056-6NF36 power contactor is a high-quality component that offers dependable performance for controlling motors and other electrical loads in 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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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.

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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 are the voltage specifications for this power contactor?

The power contactor operates at a control supply voltage of 96 to 127 V ac/dc, suitable for a variety of industrial applications.

Can this contactor be used for controlling motors?

Yes, it is designed for AC-3 applications and can handle up to 185 A, making it suitable for controlling motors up to 90 kW / 400 V.

What is the size and pole configuration of this contactor?

This contactor is a Size S6 and has a 3-pole configuration, which is standard for many power distribution and motor control applications.

What are the auxiliary contact specifications?

The contactor comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility for signalling and interlocking circuits.

How can this contactor be mounted?

It is designed for screw fixing and can be mounted with a vertical mounting surface, which is rotatable up to +/-90° and tiltable +/- 22.5° to the front and back.

What is the mechanical service life of this contactor?

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

Is there any protection against short circuits?

Yes, the contactor is designed with short-circuit protection and requires specific fuse links for coordination types 1 and 2, as detailed in the datasheet.

What are the dimensions of this contactor?

The dimensions are 172 mm in height, 120 mm in width, and 170 mm in depth, which should be considered when planning the installation space.

What is the operating frequency of this contactor?

The operating frequency varies depending on the application, with a maximum of 800 operations per hour for AC-1 and 750 operations per hour for AC-3.

Does this contactor have a surge suppressor?

Yes, it includes a varistor for surge suppression, which helps to protect the contactor and connected equipment from voltage spikes.

Part conditions explained

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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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