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Siemens 3RT2018-1BB42

Name: 3RT2018-1BB42
Brand: Siemens
SKU: 3RT2018-1BB42
Price: 53.45 GBP
Availability: InStock

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Marvo Stock ID MV-2G5W

HS Code 85364900

SKU 3RT2018-1BB42

Condition Used

Warranty 12 months

Weight (kg) 0.20

Length (mm) 73.00

Width (mm) 45.00

Height (mm) 58.00

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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	3RT2018-1BB42
Alternative Part Number	3RT20181BB42
Manufacturer	Siemens
Product Type	Power Contactor
Contactor Size	S00
Rated Operational Current AC-3	16 A
Rated Operational Voltage	Up to 690 V
Control Supply Voltage	24 V DC
Number of Main Contacts	3NO (3 Normally Open)
Number of Auxiliary Contacts	1NC (1 Normally Closed)
Terminal Type	Screw terminals
Mounting Type	Can be mounted on 35 mm DIN rail or screwed onto panel
Protection Class	IP20
Ambient Operating Temperature	-25 °C to +60 °C
Installation Altitude	Up to 2000 metres above sea level
Degree of Pollution	3
Mechanical Operating Cycles	Typically 30 million
Product Extensions	Auxiliary switch possible
Electrical Connection	Screw-type terminals for main, auxiliary, and control circuit; magnet coil also screw-type
Shock Resistance	7.3g / 5 ms, 4.7g / 10 ms (DC rectangular impulse); 11.4g / 5 ms, 7.3g / 10 ms (DC sine pulse)
Insulation Voltage	Rated at 690 V
Impulse Voltage Resistance	Rated at 6 kV

The Siemens 3RT2018-1BB42 is a robust power contactor designed to handle high switching loads in industrial environments. This contactor is part of the SIRIUS product family, renowned for its reliability and efficiency. With a compact size S00 footprint, it is engineered to facilitate easy installation and maintenance.

This power contactor is capable of managing AC-3 loads up to 16 A and motor control tasks for motors with a power rating of 7.5 kW at 400 V. It features a single normally closed (NC) contact, making it suitable for a variety of applications where a fail-safe operation is required. The device operates with a control supply voltage of 24 V DC, ensuring compatibility with standard DC control circuits.

Constructed with screw terminals, the 3RT2018-1BB42 ensures a secure and durable connection, which is vital for consistent performance in demanding conditions. The contactor is designed with a protection class of IP20, offering protection against touch by fingers and objects, and is suitable for use in controlled environments.

The contactor's mechanical service life is impressive, with up to 30 million switching cycles, indicating a long-lasting and dependable performance. Its design also allows for auxiliary switch additions, providing flexibility for various control and signalling configurations.

Engineered to meet the rigorous demands of industrial applications, the Siemens 3RT2018-1BB42 power contactor is an excellent choice for those seeking a reliable solution for controlling motors and other electrical 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 rated operational voltage for this contactor?

The rated operational voltage for the Siemens Power Contactor is 690 V.

Can this contactor be used for safety-related applications?

Yes, the contactor has a mirror contact feature according to IEC 60947-4-1, making it suitable for safety-related applications.

What is the size of the contactor and what does it mean?

The contactor is of size S00, which refers to its physical dimensions and the current rating it is designed to handle.

What type of terminals does this contactor have?

The contactor is equipped with screw terminals for secure and reliable connections.

What is the IP rating of this contactor?

The contactor has an IP20 rating, indicating protection against solid objects larger than 12mm but not against liquids.

What is the rated control supply voltage for this device?

The rated control supply voltage for the contactor is 24 V DC.

How many auxiliary contacts does this contactor have?

This contactor comes with 1 normally closed (NC) auxiliary contact.

What is the typical mechanical operating life of this contactor?

The typical mechanical operating life of the contactor is around 30 million operating cycles.

Is this contactor suitable for three-phase motor control?

Yes, it is suitable for controlling three-phase motors, with different horsepower ratings depending on the voltage.

What are the ambient temperature limits for operating this contactor?

The contactor can operate within an ambient temperature range of -25 °C to +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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