Your current location is
United Kingdom (£)
Want to ship parts to a different country? Use the drop-down menu below to navigate to the relevant site.
Search Icon Account Icon Basket Icon

3RW4026-1BB04

Marvo Stock ID: MV-221L

£378.57 (ex. VAT)

Siemens

Trustpilot Stars Qty
Express delivery guaranteed

If ordered within 00:00:00

Need it urgently?

Call: +44 20 4570 3439

Quoting Marvo Stock ID: MV-221L

Accepted payment methods:

Stripe logo Paypal logo Visa logo Mastercard logo American Express logo Bank Transfer logo

Stars Thomas Roland Geaughan

‘Prompt and expert service. Ease of access to find the parts I needed.’

Stars Milan Kosík

‘Large selection of spare parts, fast delivery.’

Specifications

Specification Description
Part Number 3RW4026-1BB04
Alternative Part Number 3RW40261BB04
Manufacturer Siemens
Category Soft Starts
Rated Operational Current At 40 °C: 25 A
At 50 °C: 23 A
At 60 °C: 21 A
Power at 400 V 11 kW
Power at 230 V 5.5 kW
Power (hp) at 200/208 V 5 hp
Operating Frequency 50 … 60 Hz
Operating Voltage 200 … 480 V
Control Voltage AC/DC 24 V
Control Circuit Frequency 50 Hz / 60 Hz
Adjustable Rated Motor Current Minimum: 10 A
Continuous Operating Current 115% of Ie at 40°C
Power Loss Typical: 8 W at operating current and 40°C during operation
Mounting Screw and snap fitting
Dimensions Width: 45 mm
Height: 125 mm
Depth: 155 mm
Number of Poles 3 for main circuit
Electrical Connection Screw terminals for main and control circuits
Product Designation Soft starter for standard 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.

Read more...

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.

Read more...

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.

Read more...

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.

Read more...

How do I create an account?

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.

Read more...

Peace of mind with every purchase

Checkmark

Marvo Approved

A seal of quality that ensures each part is fully inspected, every time. Purchase with confidence thanks to Marvo Approved.

Shield

Full warranty

All parts are covered by a comprehensive warranty. If something goes wrong, I’ll put it right.

Stopwatch

Priority delivery

Advanced tracking and a streamlined delivery process ensure that you get your part, fast.

Stars

Committed to you

Engineered to ensure that you always have a quick, easy and reliable place to source automation and control components.

3RW4026-1BB04 Product Description

The Siemens 3RW4026-1BB04 soft starter is a compact and reliable solution designed to optimise the start-up phase of electric motors. Engineered for efficiency, this soft starter smoothly ramps up the power supply to the motor, reducing mechanical stress and enhancing the longevity of your motor systems. With a rated operational current of 25 A and the capability to manage 3-phase motors up to 11 kW at 400 V in a standard circuit, it is an ideal choice for a wide range of industrial applications.

This soft starter features an integrated bypass contact system and thyristors, ensuring a seamless transition from start-up to run mode. It also boasts intrinsic device protection and motor overload protection, safeguarding your equipment against potential damage caused by electrical anomalies. The unit allows for external reset and has an adjustable current limitation feature, providing greater control over motor start-up parameters.

The 3RW4026-1BB04 operates within a frequency range of 50 to 60 Hz and can handle operating voltages from 200 to 480 V in a standard circuit, making it versatile for various power networks. Its compact design, with a width of 45 mm, height of 125 mm, and depth of 155 mm, allows for easy integration into existing setups without requiring significant space.

This soft starter is a testament to Siemens' commitment to quality and innovation, offering a blend of performance, durability, and ease of use for industrial motor control applications.

Frequently Asked Questions

What is the purpose of a soft starter?

A soft starter is designed to reduce the inrush current and torque of electric motors during startup. This helps in reducing mechanical stress on the motor and the electrodynamic stresses on the power cables and electrical distribution network, leading to a smoother and more gradual start.

Can this soft starter be used with three-phase motors?

Yes, the Siemens 3RW4026-1BB04 soft starter is suitable for use with three-phase motors, providing efficient control and protection during the start-up phase.

What are the voltage requirements for this soft starter?

The soft starter operates within a voltage range of 200 to 480 V AC, making it versatile for various industrial applications.

Is there an integrated bypass contact system in this soft starter?

Yes, the Siemens 3RW4026-1BB04 comes with an integrated bypass contact system, which helps to reduce power loss and heat generation once the motor reaches full speed.

What kind of protection does the soft starter provide?

The soft starter provides intrinsic device protection and motor overload protection, ensuring both the starter and the motor are safeguarded against potential damage caused by electrical faults.

How can I adjust the current limitation on this soft starter?

The Siemens 3RW4026-1BB04 soft starter features adjustable current limitation, which can be set according to the specific starting requirements of your motor to ensure optimal performance.

What is the rated operational current of this soft starter?

The rated operational current for the soft starter at 40°C is 25 A, which determines the maximum current the device can handle during operation.

What are the dimensions of the soft starter?

The soft starter has a width of 45 mm, a height of 125 mm, and a depth of 155 mm, making it compact and suitable for installation in various control cabinets and setups.

Does the soft starter have any certifications?

The soft starter has general product approvals and certifications that confirm its compliance with international standards, ensuring reliability and safety in its intended applications.

What type of terminals does the soft starter have for wiring?

The Siemens 3RW4026-1BB04 soft starter is equipped with screw terminals, which provide a secure and reliable connection for both the power and control wiring.