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Siemens 3RW3038-1BB04

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3RW3038-1BB04

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Marvo Stock ID MV-7G4T
HS Code 85371098
SKU 3RW3038-1BB04
Condition New sealed
Warranty 12 months
Weight (kg) 1.00
Length (mm) 320.00
Width (mm) 250.00
Height (mm) 250.00
EAN 4011209719309

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Specification & Description

Specification Description
Part Number 3RW3038-1BB04
Alternative Part Number 3RW30381BB04
Manufacturer Siemens
Type Soft Starter
Phase 3 Phase
Rated Current at 40 °C 72 A
Operating Frequency 50 … 60 Hz
Operating Voltage 200 … 480 V AC
Control Voltage 24 V AC/DC
Power Loss at 40 °C Typical 15 W
Width 55 mm
Height 160 mm
Depth 170 mm
Mounting Position Vertical mounting capable of +/-10° rotation or inclination
Installation Altitude Up to 5,000 m above sea level
Cable Length (max) 300 m
Number of Poles 3 for main circuit
Screw Terminal Connections For both main and auxiliary/control circuits
Ambient Operating Temperature -25 … +60 °C
Storage Temperature -40 … +80 °C
Degree of Protection IP00
Mechanical Size S2

The Siemens 3RW3038-1BB04 soft starter is a compact and efficient solution designed to mitigate the mechanical and electrical stress on motor startups. This soft starter is part of the SIRIUS product range and is engineered to handle three-phase motors with a rated operational current of 72 A at 40°C, making it suitable for a variety of industrial applications.

With a power rating of 37 kW at 400V, this device is capable of managing significant loads while maintaining a small footprint, measuring just 55 x 169 x 160 mm. The soft starter operates within a voltage range of 200-480V AC and is compatible with both AC and DC control supply voltages of 24V, providing flexibility in integration with existing systems.

The unit features an integrated bridging contact system and thyristors, which contribute to its reliable performance. However, it does not include intrinsic device protection, motor overload protection, or the ability to evaluate thermal resistor motor protection, which allows for a more straightforward and focused operation.

This soft starter is designed for straightforward screw terminal connections, ensuring ease of installation and maintenance. It is also characterised by its robust construction, capable of operating in a wide range of environmental temperatures from -25 to +60°C, making it a versatile choice for challenging industrial environments.

The Siemens 3RW3038-1BB04 is a practical choice for those seeking to enhance the startup performance of their motors, reduce electrical peaks, and extend the lifespan of their motor-driven equipment.

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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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, extending the lifespan of the system.

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

Yes, the Siemens soft starter is suitable for use with three-phase motors, providing efficient control during the start and stop operation.

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 soft starter comes with an integrated bypass contact system, which helps to reduce power loss and heat generation once the motor reaches full speed.

What is the rated operational current of this soft starter?

The rated operational current of the soft starter is 72 A at 40°C, ensuring it can handle significant motor loads.

Does this soft starter offer motor overload protection?

No, intrinsic motor overload protection is not a feature of this soft starter. Separate protection devices should be used to safeguard the motor from overload conditions.

What are the dimensions of this soft starter?

The dimensions of the soft starter are 55 mm in width, 160 mm in height, and 170 mm in depth, which should be considered when planning installation space.

How can I control this soft starter?

The soft starter can be controlled using a 24 V AC/DC control voltage, providing flexibility in integration with control systems.

What is the frequency range for the operation of this soft starter?

The soft starter operates at a frequency range of 50 to 60 Hz, accommodating standard industrial power supply frequencies.

Can this soft starter be used at different altitudes?

Yes, it can be used at altitudes up to 5,000 meters above sea level, though derating factors may apply at higher altitudes.

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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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