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Siemens 3RT1025-3BB40

Name: 3RT1025-3BB40
Brand: Siemens
SKU: 3RT1025-3BB40
Price: 40.47 GBP
Availability: InStock

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£40.47 (ex. VAT)

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Marvo Stock ID MV-1GYQ

HS Code 85364900

SKU 3RT1025-3BB40

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

EAN 4011209291201

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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	3RT1025-3BB40
Alternative Part Number	3RT10253BB40
Manufacturer	Siemens
Product Type	Power Contactor
Contact Configuration	3NO (3 Normally Open contacts)
Rated Current	40 A
Rated Operational Power	23 kW (at 400 V AC-3)
Control Voltage	24 V DC
Size	S0
Connection Type	Cage Clamp Connection
Protection Class	IP20; IP00
Ambient Operating Temperature	-25 … +60 °C
Mechanical Operating Cycles	10,000,000 typical for contactor
Installation Altitude	Up to 2,000 m above sea level
Degree of Pollution	3
Mounting Type	Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Dimensions (H x W x D)	85 mm x 45 mm x 100 mm
Conductor Cross-section	Main contacts: max. 2x 10 mm²; Auxiliary contacts: 2x (0.25 ... 2.5 mm²)
Certifications/Approvals	General Product Approval, Declaration of Conformity, and others as per relevant standards

The Siemens 3RT1025-3BB40 is a robust and reliable power contactor, designed to handle a wide range of industrial applications. This part is characterised by its 3NO (Normally Open) contacts, a 40 A operating current, and a control voltage of 24 V dc. With a power rating of 23 kW, it is capable of managing substantial loads, making it a versatile choice for various settings.

The 3RT1025-3BB40 belongs to the S0 size category and features a DC control system. It is designed with IP20 and IP00 protection classes, ensuring it can withstand challenging environments. This power contactor is part of the renowned Siemens SIRIUS product range, known for its high-quality and performance.

One of the key features of this part is its mechanical service life, with a typical switching cycle of 10 million for the contactor and 5 million for the contactor with added electronics-compatible auxiliary switch block. This ensures longevity and reduces the need for frequent replacements, offering excellent value for money.

Please note that this part is a phased-out product, and its preferred successor is the SIRIUS 3RT2, specifically the 3RT2025-2BB40 model. However, the 3RT1025-3BB40 remains a popular choice due to its proven performance and reliability.

Whether you're operating in the manufacturing, energy, or automation sectors, the Siemens 3RT1025-3BB40 power contactor is a solid choice for efficient and reliable power control.

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 main function of this power contactor?

The Siemens 3RT1025-3BB40 is a power contactor primarily used for switching a power circuit.

What are the key specifications of this power contactor?

This power contactor has a 3NO (Normally Open) configuration, a rated operating current of 40 A, a rated operating power of 23 kW, and a control voltage of 24 V dc. It belongs to the S0 size category and has an IP20;IP00 protection rating.

What is the significance of the 3NO configuration in this power contactor?

3NO means that the Siemens 3RT1025-3BB40 has three Normally Open contacts. When the contactor is not energised, the contacts are open and no current can flow through them. When the contactor is energised, the contacts close, allowing current to flow.

What does the IP rating of this power contactor mean?

The IP rating (Ingress Protection rating) of the Siemens 3RT1025-3BB40 is IP20;IP00. This means that the front of the contactor has protection against solid objects larger than 12.5 mm (like fingers), but it's not protected against liquids. The terminal of the contactor does not have any special protection.

What is the control voltage of this power contactor?

The control voltage of the Siemens 3RT1025-3BB40 is 24 V dc. This is the voltage required to energise the contactor and close the contacts.

What is the rated operating current and power of this power contactor?

The Siemens 3RT1025-3BB40 has a rated operating current of 40 A and a rated operating power of 23 kW.

What size category does this power contactor belong to?

The Siemens 3RT1025-3BB40 belongs to the S0 size category.

What is the mechanical service life of this power contactor?

The Siemens 3RT1025-3BB40 has a typical mechanical service life of 10 million switching cycles.

What is the ambient temperature range for operating this power contactor?

The Siemens 3RT1025-3BB40 can operate in ambient temperatures ranging from -25 to +60 degrees Celsius.

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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