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Siemens 3RT2028-1BB40

Name: 3RT2028-1BB40
Brand: Siemens
SKU: 3RT2028-1BB40
Price: 77.93 GBP
Availability: InStock

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£77.93 (ex. VAT)

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Marvo Stock ID MV-7EMM

HS Code 85364900

SKU 3RT2028-1BB40

Condition Used

Warranty 12 months

Weight (kg) 1.00

Length (mm) 300.00

Width (mm) 190.00

Height (mm) 150.00

EAN 4011209833821

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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	3RT2028-1BB40
Alternative Part Number	3RT20281BB40
Manufacturer	Siemens
Product Type	Power Contactor
Number of Contacts	3 Normally Open (NO)
Rated Operational Current	50 A
Rated Operational Power	48 kW
Rated Operational Voltage	690 V ac
Contactor Size	S0
Supply Voltage Type	AC (Supply); DC (Control)
Operating Frequency	1000 MHz
Degree of Protection	IP20
Commodity Code	853649
Mounting Type	Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Connection Type	Screw-type terminals for main, auxiliary, and control current circuits
UL/CSA Ratings	Mechanical performance for various squirrel cage motors at specified voltages and horsepower
Operating Current (FLA)	For three-phase squirrel cage motors at 480 V: 34 A; at 600 V: 27 A
Contact Rating Designation	For auxiliary contacts according to UL: A600 / Q600
Dimensions (H x W x D)	85 mm x 45 mm x 107 mm
Required Spacing	For side-by-side mounting and spacing from grounded and live parts
Connectable Conductor Types	Solid, stranded, finely stranded with core end processing
Connectable Conductor Range	1 ... 10 mm²

The Siemens 3RT2028-1BB40 is a robust power contactor designed to handle high switching frequencies and is suitable for a wide range of industrial applications. This contactor is part of the SIRIUS product family and is engineered to facilitate efficient and reliable switching of motors. It is capable of managing AC-3 loads up to 18.5 kW at 400 V, making it an excellent choice for controlling three-phase motors.

With a size S0 footprint, the 3RT2028-1BB40 offers a compact solution that is easy to integrate into existing systems. It features three normally open (NO) main contacts and a control voltage rating of DC 24V, ensuring compatibility with various control systems. The contactor is designed with screw terminals for secure and straightforward wiring.

The device boasts an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV, providing a high level of protection for the contactor and the circuits it controls. It is also equipped with an auxiliary switch, enhancing its functionality for complex control circuits.

Constructed with safety in mind, the 3RT2028-1BB40 has a protection class of IP20, ensuring finger-safe operation and protection against solid objects. It is designed to withstand challenging environmental conditions, with an operational temperature range of -25 to +60 °C and storage temperatures ranging from -55 to +80 °C.

The mechanical service life of this contactor is impressive, with up to 10 million switching cycles, indicating its durability and long-term reliability. Its design also allows for easy maintenance and straightforward replacement, which is essential for minimising downtime in industrial settings.

Overall, the Siemens 3RT2028-1BB40 power contactor is a high-quality component that offers reliability, durability, and versatility for controlling motors and other electrical loads in a variety of 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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Peace of mind with every purchase

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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 type of contactor is this?

This is a power contactor designed for switching an electrical power circuit, similar to a relay except with higher current ratings. It's suitable for controlling electric motors and other high power loads.

Can this contactor be used with three-phase motors?

Yes, it is suitable for use with three-phase squirrel cage motors and provides different horsepower ratings depending on the voltage level.

What is the rated operating voltage for this contactor?

The rated operating voltage for this contactor at AC-3 is up to 690 V.

What is the insulation voltage rating of this contactor?

The insulation voltage rating of this contactor is 690 V.

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 operating current rating at AC-1 for this contactor?

The operating current rating at AC-1 for this contactor is 50 A at 400 V in an ambient temperature of 40°C.

Does this contactor have auxiliary contacts?

Yes, it comes with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for instantaneous switching.

What is the control supply voltage for this contactor?

The control supply voltage for this contactor is 24 V DC.

What are the dimensions of this contactor?

The dimensions for this contactor are not specified here. Please refer to the manufacturer's datasheet for detailed dimensions.

Is this contactor suitable for use in safety applications?

This contactor does not have positively driven operation according to IEC 60947-5-1, which is often a requirement for safety applications.

What is the frequency of operation for this contactor?

The frequency of operation varies depending on the load category, ranging from 250 operations per hour at AC-4 to 1000 operations per hour at AC-1.

What is the ambient temperature range for operating this contactor?

The ambient temperature range for operating this contactor is from -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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