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Siemens 3RT1056-1AB36

Name: 3RT1056-1AB36
Brand: Siemens
SKU: 3RT1056-1AB36
Price: 159.06 GBP
Availability: InStock

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Marvo Stock ID MV-7DC6

HS Code 85364900

SKU 3RT1056-1AB36

Condition Used

Warranty 12 months

Weight (kg) 6.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

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More about this product

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	3RT1056-1AB36
Alternative Part Number	3RT10561AB36
Manufacturer	Siemens
Product Type	Power Contactor
Size of Contactor	S6
Protection Class IP	Front: IP00
Degree of Pollution	3
Installation Altitude	Up to 2,000 metres above sea level
Ambient Operating Temperature	-25°C to +60°C
Mechanical Operating Cycles	10,000,000 typical for contactor
Number of Poles	3
Number of Main Contacts	3 NO (Normally Open)
Operational Current at AC-3	185 A at 400 V
Operational Current at AC-1	215 A at 400 V at 40°C ambient temperature
Control Supply Voltage	AC/DC operation 23-26 V UC
Auxiliary Contacts	2 NO + 2 NC
Mounting Type	Screw fixing, side-by-side mounting possible
Dimensions (H x W x D)	172 mm x 120 mm x 170 mm
Required Spacing	Forwards: 20 mm, Upwards/Downwards: 10 mm, At the side: 0 mm for side-by-side mounting
Electrical Connection	Box terminal for main current circuit, Screw-type terminals for auxiliary/control current circuit
Conductor Cross-Section	Main contacts: max. 1x 95, 1x 120 mm²
Operating Power at AC-3	90 kW at 400 V
Short-Time Withstand Current	Up to 2,900 A for 1 s at 40°C cold operating state
Surge Voltage Resistance	Main circuit: 8 kV, Auxiliary circuit: 6 kV
Maximum Voltage for Safe Isolation	690 V between coil and main contacts according to EN 60947-1

The Siemens 3RT1056-1AB36 is a robust power contactor designed to handle high current applications with ease. Engineered for reliability and efficiency, this contactor is capable of switching motor loads of up to 90 kW at 400 V in AC-3 utilisation categories, making it an ideal choice for a wide range of industrial applications. Its AC/DC operation with a control supply voltage of 23-26 V ensures versatility in various power network configurations.

This contactor is part of the SIRIUS product family, known for its high-quality standards and innovative engineering. It features three poles and includes auxiliary contacts with 2 normally open (NO) and 2 normally closed (NC) contacts, providing additional flexibility for control circuit configurations. The device is designed with a size S6 frame and offers convenient bar connection points for straightforward installation.

With a mechanical service life of up to 10 million operating cycles, the Siemens 3RT1056-1AB36 is built to last, ensuring long-term performance and minimal maintenance. Its compact dimensions and the ability to mount side-by-side make it a space-saving solution in electrical cabinets. The contactor also boasts a high degree of protection for the front terminals, rated at IP20, ensuring safety and durability in challenging industrial environments.

The Siemens 3RT1056-1AB36 is a testament to Siemens' commitment to quality and performance, providing a reliable and efficient solution for controlling high-power motors and 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.

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 rated operating current for this contactor in an AC-3 utilisation category?

The rated operating current for this contactor in an AC-3 utilisation category at 400 V is 185 A.

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

Yes, this contactor is designed for AC (50-60 Hz) and DC operation with a control supply voltage of 23-26 V UC.

What are the dimensions of this contactor?

The dimensions of the contactor are 172 mm in height, 120 mm in width, and 170 mm in depth.

What is the maximum operating voltage for this contactor in an AC-3 category?

The maximum operating voltage for this contactor in an AC-3 category is 1,000 V.

What type of auxiliary contacts does this contactor have?

This contactor is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts.

What is the mechanical service life of this contactor?

The mechanical service life of the contactor is typically 10 million operating cycles.

What is the protection class for the front of this contactor?

The protection class for the front of this contactor is IP00.

What is the power loss at the rated value of the current for this contactor?

The power loss at the rated value of the current for this contactor is 39 W in a hot operating state.

What is the installation altitude limit for this contactor?

The installation altitude limit for this contactor is up to 2,000 metres above sea level.

What is the ambient operating temperature range for this contactor?

The ambient operating temperature range for this contactor is between -25 °C and +60 °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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