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Siemens 3RA2120-1GA24-0BB4

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Marvo Stock ID MV-7B32
HS Code 85364900
SKU 3RA2120-1GA24-0BB4
Warranty 12 months
Weight (kg) 2.00
Length (mm) 300.00
Width (mm) 190.00
Height (mm) 150.00

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Specification & Description

Specification Description
Part Number 3RA2120-1GA24-0BB4
Alternative Part Number 3RA21201GA240BB4
Manufacturer Siemens
Country of Origin Not specified
Description The Siemens 3RA2120-1GA24-0BB4 is a high-quality electronic part designed for optimal performance and reliability. It is manufactured by Siemens, a world-renowned leader in the field of industrial automation and digitalisation. This part is known for its durability and efficiency, making it a preferred choice for various industrial applications. Please note that the country of origin for this part is not specified.

The Siemens 3RA2120-1GA24-0BB4 is a sophisticated and reliable load feeder designed for fuseless direct starting applications. This component is part of the esteemed SIRIUS product range and is engineered to facilitate the seamless operation of AC motors up to 400V. With a size S0 footprint, it is compact and suitable for space-conscious installations.

This load feeder is equipped with a 3-pole main current circuit and features an electromechanical switching contact design. It boasts an adjustable pick-up value current of the current-dependent overload release ranging from 4.5 to 6.3A, ensuring versatile application across various motor sizes. The operating voltage is rated at a robust 690V, with an operating frequency rated value of 50 to 60 Hz, catering to a wide range of industrial power systems.

The control supply voltage operates at a DC rated value of 24V, with a holding power of the magnet coil at DC of 5.9W, ensuring efficient energy usage. The unit also includes an auxiliary switch, enhancing its functionality and integration capabilities within complex control systems.

For protection, the Siemens 3RA2120-1GA24-0BB4 features a thermal (bimetallic) overload release with a trip class of CLASS 10, providing reliable protection against motor overload conditions. Additionally, it offers short circuit protection with a magnetic design of the short-circuit trip, ensuring the safety and longevity of the equipment it serves.

The mounting position is vertical, with the option for screw and snap-on mounting onto a 35 mm standard mounting rail, making installation straightforward and adaptable to various settings. The dimensions are practical, with a height of 193.1 mm, a width of 45 mm, and a depth of 107 mm, allowing for efficient use of panel space.

The Siemens 3RA2120-1GA24-0BB4 is designed with safety in mind, featuring finger-safe protection against electrical shock and an IP20 protection class on the front. It is a robust solution for industrial applications requiring reliable motor control and protection.

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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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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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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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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 this Siemens load feeder?

The Siemens load feeder is designed for fuseless direct starting of motors. It's used in industrial applications to control and protect motors, ensuring safe and efficient operation.

Can this load feeder be mounted on a DIN rail?

Yes, the load feeder is suitable for rail-mounting and can be easily installed onto a standard DIN rail.

What type of connections does this load feeder support?

This load feeder supports screw-type terminal connections, providing a secure and reliable electrical connection for the main current circuit.

What is the rated operational voltage of this load feeder?

The rated operational voltage for this load feeder is 690V, making it suitable for a wide range of industrial applications.

Is there overload protection included in this load feeder?

Yes, the load feeder includes a current-dependent overload release for protection against overloads, ensuring the safety and longevity of the connected motor.

What is the size of this Siemens load feeder?

The size of this load feeder is S0, which refers to its physical dimensions and the current range it can handle.

Does this load feeder have short circuit protection?

Yes, it comes with short circuit protection to safeguard against sudden surges in current that could damage the equipment.

What is the ambient operating temperature range for this load feeder?

The ambient operating temperature range for this load feeder is from -20°C to +60°C, accommodating a variety of industrial environments.

What is the mechanical service life of the contactor in this load feeder?

The contactor within this load feeder has a mechanical service life of typically 10 million switching cycles, indicating its durability and reliability.

What type of protection class does the front of this load feeder have?

The front of this load feeder has a protection class of IP20, providing protection against solid objects larger than 12mm but not against water.

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Part conditions explained


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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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