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Siemens 3RT1025-1KB40

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Marvo Stock ID MV-7CYH

HS Code 85364900

SKU 3RT1025-1KB40

Warranty 12 months

Weight (kg) 1.00

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	3RT1025-1KB40
Alternative Part Number	3RT10251KB40
Manufacturer	Siemens
Product Type	Power Contactor
Contactor Size	S0
Rated Operational Current (AC-3)	17 A at 400 V
Rated Operational Current (AC-1)	40 A at 400 V
Rated Control Supply Voltage	24 V DC
Operating Voltage Range	0.7 to 1.25 times the rated control supply voltage
Surge Suppressor	With varistor
Number of Poles	3-pole
Connection Type	Screw-type terminals
Mounting Type	Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Width	45 mm
Height	88 mm
Depth	101 mm
Ambient Operating Temperature	-25 to +60 °C
Mechanical Operating Cycles	Typical 10,000,000
Protection Class IP	IP20 on the front
Degree of Pollution	3
Installation Altitude	Up to 2,000 m above sea level

The Siemens 3RT1025-1KB40 is a robust power contactor designed to handle moderate power switching applications within industrial environments. This contactor is part of the SIRIUS product family, renowned for its reliability and efficiency in automating processes. With a size S0 footprint, it is compact enough for standardised installation yet powerful enough to manage AC-3 loads up to 17 A and motor control tasks for motors with power ratings up to 7.5 kW at 400 V.

Engineered for durability, the 3RT1025-1KB40 boasts an impressive mechanical operating life, capable of up to 10 million cycles, making it a long-lasting solution for frequent switching operations. The contactor operates with a control supply voltage of 24 V DC and features an integrated varistor for surge suppression, ensuring stable operation and protection against voltage spikes.

The device is designed with three normally open (NO) main contacts and allows for easy connection with screw-type terminals, accommodating a range of conductor cross-sections. It is suitable for mounting on a 35 mm standard mounting rail according to DIN EN 50022, and its side-by-side mounting capability allows for efficient use of space inside control cabinets.

With an operating temperature range of -25 to +60 °C and the ability to function at installation altitudes up to 2000 metres above sea level, the 3RT1025-1KB40 is versatile for various industrial settings. Its IP20 protection class ensures that the contactor is safeguarded against solid objects larger than 12.5 mm, adding to its operational safety.

The Siemens 3RT1025-1KB40 is a dependable choice for those seeking a contactor that combines compact design with the power to perform in demanding industrial applications.

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 the contactor in an AC-3 utilisation category at 400 V is 17 A.

Can this contactor be mounted on a DIN rail?

Yes, the contactor is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.

What is the protection class of the contactor's front side?

The front side of the contactor has a protection class of IP20.

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.

What are the dimensions of this contactor?

The contactor has dimensions of 45 mm in width, 88 mm in height, and 101 mm in depth.

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

The contactor features screw-type terminals for the electrical connection of the main circuit.

How many mechanical operating cycles can this contactor typically withstand?

The contactor is typically rated for 10,000,000 mechanical operating cycles.

What is the coil voltage for this contactor?

The coil voltage for this contactor is 24 V DC.

Does this contactor come with a built-in surge suppressor?

Yes, the contactor includes a built-in surge suppressor with a varistor.

What is the maximum installation altitude for this contactor?

The maximum installation altitude for the contactor is 2,000 metres above sea level.

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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