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Siemens 3RW3028-1BB14

Name: 3RW3028-1BB14
Brand: Siemens
SKU: 3RW3028-1BB14
Price: 411.75 GBP
Availability: InStock

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£411.75 (ex. VAT)

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Marvo Stock ID MV-1WF0

HS Code 85371098

SKU 3RW3028-1BB14

Condition New sealed

Warranty 12 months

Weight (kg) 1.00

Length (mm) 320.00

Width (mm) 250.00

Height (mm) 250.00

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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	3RW3028-1BB14
Alternative Part Number	3RW30281BB14
Manufacturer	Siemens
Product Type	Soft Starter
Phase	3 Phase
Operational Current	38 A @ 40 °C
Operational Voltage	200-480 V AC
Control Supply Voltage	110-230 V AC/DC
Power Rating	18.5 kW/400 V
Frequency	60 Hz
Dimensions	45 x 153 x 125 mm
Mounting Type	Screw and snap-on mounting
Number of Poles	3 for main current circuit
Ambient Operating Temperature	-25 … 60 °C during operation, -40 … 80 °C during storage
Protection Class	IP20
Product Designation	Soft starters for standard applications
Connection Type	Screw-type terminals for main and auxiliary/control current circuits
Installation Altitude	Up to 5,000 m above sea level
Cable Length (max)	300 m
Commodity Code	853710

The Siemens 3RW3028-1BB14 soft starter is a compact and efficient solution designed to optimise the start-up process of three-phase motors. This device is engineered to reduce the mechanical stress on motor control systems, thereby extending the lifespan of both the motor and the equipment it powers. With a current rating of 38 A at 40 °C and the capability to handle motors up to 18.5 kW/400 V, it is suitable for a wide range of industrial applications.

The soft starter operates within a supply voltage range of 200-480 V AC and accepts control voltages of 110-230 V AC/DC, making it versatile for global use. The unit's dimensions are 45 x 153 x 125 mm, which allows for convenient integration into existing setups without requiring significant space. Installation is made simple with screw terminals, providing a secure and reliable connection.

Designed with robustness in mind, the 3RW3028-1BB14 can operate in challenging industrial environments. It is built to withstand ambient operating temperatures ranging from -25 to 60 °C, ensuring consistent performance even in extreme conditions. The device also features a red fault signal display for quick diagnostics and troubleshooting.

This soft starter is part of the SIRIUS range, known for its reliability and innovation in motor control technology. It is an ideal choice for those looking to improve their motor start-up sequences, reduce energy consumption, and minimise wear and tear on mechanical components. Whether used in conveyor systems, pumps, fans, or compressors, the Siemens 3RW3028-1BB14 offers a blend of performance, durability, and ease of use that can contribute to the smooth operation and efficiency of your industrial processes.

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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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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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 purpose of a soft starter like this Siemens model?

A soft starter is designed to reduce the inrush current and torque of electric motors during start-up. This helps in reducing mechanical stress on the motor and the electrodynamic stresses on the power cables and electrical distribution network, extending the lifespan of the system.

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

Yes, this Siemens soft starter is specifically designed for use with three-phase motors, providing smooth ramp-up and ramp-down control to minimise mechanical stress.

What are the voltage requirements for this soft starter?

The soft starter operates with a control supply voltage of 110-230V AC/DC and can handle a motor operating voltage in the range of 200-480V AC.

What is the maximum operational altitude for this soft starter?

The soft starter can be installed at an altitude of up to 5,000 meters above sea level without derating.

What are the dimensions of this soft starter?

The dimensions of the soft starter are 45 mm in width, 125 mm in height, and 150 mm in depth.

Is there a specific way to mount this soft starter?

Yes, the soft starter can be mounted using screw and snap-on mounting methods and should be positioned with a vertical mounting surface that is +/-10° rotatable.

What is the rated operational current of this soft starter?

The rated operational current for this soft starter at 40°C is 38A.

Does this soft starter have an integrated bridging contact system?

Yes, this Siemens soft starter comes with an integrated bridging contact system.

What type of terminals does this soft starter have for electrical connections?

This soft starter is equipped with screw-type terminals for both the main current circuit and the auxiliary and control current circuit.

What is the ambient temperature range in which this soft starter can operate?

The soft starter is designed to operate within an ambient temperature range of -25 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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