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Siemens

3RW4028-1BB04

£527.87 (ex. VAT)

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3RW4028-1BB04

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Marvo Stock ID MV-1LYC
HS Code 85371098
SKU 3RW4028-1BB04
Condition New sealed
Category Soft Starts
Warranty 12 months
Weight (kg) 2.00
Length (mm) 260.00
Width (mm) 210.00
Height (mm) 190.00

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Specification & Description

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Specification & Description

Specification Description
Part Number 3RW4028-1BB04
Alternative Part Number 3RW40281BB04
Manufacturer Siemens
Category Soft Starts
Description The Siemens 3RW4028-1BB04 is a Soft Starter designed for efficient and reliable operation. It operates at a voltage range of 200 to 480 V ac, making it suitable for a wide range of industrial applications. This 3-phase Soft Starter is part of Siemens' renowned SIRIUS product line, known for its high-quality and durable components.
Operating Current at 40°C 38 A
Operating Current at 50°C 34 A
Operating Current at 60°C 31 A
Mechanical Power Output at 230V 11 kW
Mechanical Power Output at 400V 18.5 kW
Control Supply Voltage AC/DC 24V
Operating Frequency 50 to 60 Hz
Operating Voltage 200 to 480 V AC
Ambient Temperature during Operation -25 to +60 °C
Protection Class IP20
Country of Origin Not specified
Commodity Code 85371098

The Siemens 3RW4028-1BB04 is a high-quality soft starter designed for efficient and reliable operation. This part is engineered to provide a smooth start and stop to your machinery, reducing mechanical stress and extending the lifespan of your equipment. With a voltage range of 200 to 480 V AC and a 3-phase operation, it is suitable for a wide variety of industrial applications. The 3RW4028-1BB04 also features an integrated bypass contact system and thyristors for enhanced performance. Its intrinsic device protection and motor overload protection ensure safe operation, while the external reset and adjustable current limitation offer added convenience. This Siemens soft starter is part of the SIRIUS product line, known for its robustness and reliability. It's the perfect choice for businesses looking to optimise their operations and improve the longevity of their machinery.

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.

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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.

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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.

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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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Creating an account is incredibly simple and takes a matter of seconds. You can create a Marvo account at any time by clicking here and following the simple steps on screen. By creating a Marvo account you can store your contact details, delivery addresses, billing addresses and more, meaning that you can enjoy game-changing convenience faster than ever before.

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Frequently Asked Questions

What is the main function of this soft starter?

The Siemens 3RW4028-1BB04 is a soft starter designed to control the acceleration and deceleration of three-phase motors. It helps to reduce mechanical stress on the motor and the power supply network during startup.

What voltage does this soft starter operate at?

This soft starter operates at a voltage range of 200 to 480 V AC.

What is the significance of the integrated bypass contact system in this soft starter?

The integrated bypass contact system in the Siemens 3RW4028-1BB04 soft starter helps to reduce heat generation once the motor is up to full speed. This leads to energy efficiency and extends the lifespan of the device.

Does this soft starter offer motor overload protection?

Yes, the Siemens 3RW4028-1BB04 soft starter provides motor overload protection. This feature helps to prevent damage to the motor due to excessive current or heat.

Can the current limitation be adjusted in this soft starter?

Yes, the Siemens 3RW4028-1BB04 soft starter allows for adjustable current limitation. This feature provides flexibility in controlling the maximum current supplied to the motor during startup.

What is the ambient operating temperature range for this soft starter?

The Siemens 3RW4028-1BB04 soft starter can operate in an ambient temperature range of -25 to +60 degrees Celsius.

What is the protection class of this soft starter?

The Siemens 3RW4028-1BB04 soft starter has a protection class of IP20. This means it is protected against solid objects larger than 12.5mm but is not protected against liquids.

What is the yielded mechanical performance for this soft starter?

At 220/230 V, the Siemens 3RW4028-1BB04 soft starter can yield a mechanical performance of 10 hp. At 460/480 V, it can yield a mechanical performance of 25 hp.

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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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