Image shown may not reflect the final product
Check similar products or call us on +44 20 4570 3439 for assistance
1 ready to ship
Image shown may not reflect the final product
Check similar products or call us on +44 20 4570 3439 for assistance
Express delivery
Lightning fast delivery if ordered within 00:00:00
Hassle-free returns
No hidden fees or duties
Swift dispatch and delivery
Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RW4027-1BB04 |
| Alternative Part Number | 3RW40271BB04 |
| Manufacturer | Siemens |
| Category | Soft Starts |
| Operating Voltage Range | 200 to 480 V ac |
| Phase | 3 Phase |
| Operating Current at 40 °C | 32 A |
| Operating Current at 50 °C | 29 A |
| Operating Current at 60 °C | 26 A |
| Mechanical Power Output at 400 V | 15 kW |
| Operating Frequency | 50 to 60 Hz |
| Control Supply Voltage | AC/DC 24 V |
| Connection Type | Screw terminals |
| Ambient Operating Temperature Range | -25 to +60 °C |
| Storage Temperature Range | -40 to +80 °C |
| Protection Class | IP20 |
| Installation Altitude | Up to 5,000 m above sea level |
| Motor Overload Protection | Yes |
| Integrated Bypass Contact System | Yes |
| Adjustable Current Limitation | Yes |
| Width | 45 mm |
| Height | 125 mm |
| Depth | 155 mm |
| Mounting Type | Screw and snap-on mounting |
| Number of Poles for Main Circuit | 3 |
| Auxiliary Contact Ratings | B300 / R300 according to UL |
| Mechanical Performance for AC Motor | 7.5 hp at 220/230 V, 20 hp at 460/480 V |
The Siemens 3RW4027-1BB04 is a high-quality soft starter designed to facilitate the controlled ramp-up and slow-down of three-phase motors, enhancing the longevity of motor systems and reducing mechanical stress on motor shafts and electrical stress on power systems. This soft starter is suitable for a wide range of industrial applications, including pumps, fans, and conveyors, where smooth operation and energy efficiency are paramount.
With an operational voltage range of 200 to 480 V AC and a control voltage of 24 V AC/DC, the 3RW4027-1BB04 is versatile and can be integrated into various electrical setups. It is capable of handling motors with a power output of up to 15 kW at 400 V in a 40 °C environment, making it a robust choice for medium-sized applications.
The unit comes equipped with an integrated bypass contact system, which helps to reduce power loss and heat generation once the motor reaches full speed. Additionally, the soft starter features thyristors for reliable performance and includes intrinsic device protection to safeguard against potential faults.
The 3RW4027-1BB04 also offers motor overload protection, which is essential for preventing damage due to excessive current draw. While it does not evaluate thermistor motor protection, it does allow for external reset and adjustable current limitation, giving users greater control over motor start and stop parameters.
This soft starter is designed with a compact footprint and screw terminals for straightforward installation. It is rated for an insulation voltage of 600 V and conforms to a pollution degree of 3 according to IEC 60947-4-2, ensuring it meets the rigorous standards for industrial electrical devices.
The Siemens 3RW4027-1BB04 soft starter is a reliable and efficient solution for managing the demands of three-phase motors in industrial environments, providing smooth startups, improved energy efficiency, and enhanced motor protection.
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
Anna
‘I can recommend quick, efficient, and professional.’
Dan
‘The ordering was fast and efficient, and everything arrived just as they said it would.’
Thomas Roland Geaughan
‘Prompt and expert service. Ease of access to find the parts I needed.’
Martin Ruml
‘Rapid delivery.’
Milan Kosík
‘Large selection of spare parts, fast delivery.’
Muswalin
‘Good packing, quickly delivery and responsible.’
Martin Ruml
‘Rapid delivery.’
Nathalie Jolicoeur
‘Great service. Thank you.’
Ms. Mia
‘Quick response, good item, delivery on schedule.’
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 voltage range for this soft starter?
The soft starter is designed for a voltage range of 200 to 480 V ac, making it suitable for a variety of three-phase power supplies.
Can this soft starter be used in hazardous locations?
Yes, the soft starter has a general product approval for EMC and is suitable for use in hazardous locations.
What is the maximum operating altitude for this device?
The device can be installed at altitudes up to 5,000 metres above sea level without derating.
What are the ambient temperature limits for operating this soft starter?
The soft starter can operate within an ambient temperature range of -25 to +60 degrees Celsius.
Does this soft starter come with an integrated bypass contact system?
Yes, the soft starter includes an integrated bypass contact system.
What is the protection class of this soft starter?
The soft starter has a protection class of IP20.
What is the horsepower rating for motors connected at 460/480 V?
For motors connected at 460/480 V, the soft starter can handle a horsepower rating of up to 20 hp.
Is there a need for external motor overload protection with this soft starter?
No, the soft starter comes with built-in motor overload protection.
Can the current limitation be adjusted on this soft starter?
Yes, the soft starter allows for adjustable current limitation to suit various starting conditions.
What type of terminals does this soft starter have for wiring?
The soft starter is equipped with screw terminals for secure and reliable wiring connections.
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.
