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Siemens 3NA3254

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3NA3254

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Marvo Stock ID MV-25R9
HS Code 85361090
SKU 3NA3254
Condition Used
Warranty 12 months
Weight (kg) 0.65
Length (mm) 147.60
Width (mm) 70.50
Height (mm) 57.00

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Specification & Description

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Specification & Description

Specification Description
Part Number 3NA3254
Manufacturer Siemens
Product Type HRC Fuse Element
Rated Current 355 A
Power Loss 26 W
Mounting Position Vertical, Any
Size of Fuse System NH2 according to DIN EN 60269-1
Operating Class of Fuse Link gG
Type of Voltage AC/DC
Supply Voltage (AC) 500 V
Supply Voltage (DC) 440 V
Protection Class IP20 with connected conductors
Switching Capacity Current 120 kA according to IEC 60947-2
Dissipation Power Loss 26 W for rated value of the current at AC in hot operating state per pole
Operational Current 355 A at AC
Mechanical Design Width 57.8 mm
Mounting Position Any, preferably vertical
Net Weight 654 g
Ambient Temperature (Operation) Minimum -5 °C, Maximum 40 °C
Ambient Temperature (Storage) -20 to +50 °C at 95% relative humidity
Environmental Conditions Air humidity 90% at 20 °C
Certificates and Approvals General Product Approval, Declaration of Conformity, Test Certificates, Special Test Certificate

The Siemens 3NA3254 is a high-quality HRC (High Rupturing Capacity) fuse element designed to provide reliable overcurrent protection in industrial settings. This component is part of the SENTRON product family, known for its robustness and efficiency in safeguarding electrical circuits.

With a nominal current rating of 355 A, the 3NA3254 is capable of handling significant electrical loads, making it suitable for a wide range of applications. The fuse operates effectively within a supply voltage range of up to 500 V AC and 440 V DC, ensuring versatility across different power systems.

The fuse link features a gG operating class, which indicates it is designed for general application and is capable of providing both short-circuit and overload protection. This characteristic makes it an excellent choice for protecting cables and power lines, as it can interrupt fault currents up to 120 kA according to IEC 60947-2 standards.

The 3NA3254 is engineered with blade contacts and front indicators for ease of use and quick identification of fuse status. Its non-corroding, silver-plated switching contacts are built to maintain integrity over time, ensuring long-lasting performance.

With a power loss rating of 26 W, the fuse operates efficiently, minimising energy waste and heat generation. The mechanical design allows for flexible installation, with the ability to mount the fuse in any position, though a vertical orientation is preferred for optimal performance.

The compact dimensions of 70.5 x 57 x 147.6 mm and a net weight of 654 g make this fuse element a practical choice for space-constrained environments. Its IP20 protection class with connected conductors ensures that the fuse is safeguarded against the ingress of solid objects, adding to its durability and reliability in industrial applications.

Overall, the Siemens 3NA3254 HRC fuse element is a dependable and efficient solution for protecting electrical equipment from overcurrents, ensuring the safety and continuity of electrical systems in commercial and industrial facilities.

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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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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Frequently Asked Questions

What is the operating class of this fuse link?

The fuse link operates under the gG class, which is suitable for general applications, providing protection for both cables and equipment.

Can this fuse link be used with both AC and DC voltages?

Yes, it is designed to be used with both AC and DC voltages, with a rated value of 500 V for AC and 440 V for DC.

What are the environmental operating conditions for this fuse link?

The fuse link can operate within an ambient temperature range of -5 °C to 40 °C and can handle up to 90% air humidity at 20 °C.

What is the switching capacity of this fuse link?

It has a switching capacity current of 25 kA at DC according to IEC 60947-2 and 120 kA according to IEC 60947-2 for AC.

What is the power loss associated with this fuse link?

The power loss is rated at 26 W per pole in a hot operating state when used at the rated current value.

What is the recommended mounting position for this fuse link?

While it can be mounted in any position, it is preferably mounted vertically to ensure optimal performance.

What is the size and weight of this fuse link?

The enclosure width is 57.8 mm, and the net weight of the fuse link is 654 g.

What type of protection class does this fuse link have?

It is classified under protection class IP20 when connected to conductors.

How does the operational current vary with temperature?

The operational current rating decreases as the ambient temperature increases, with specific values provided for temperatures ranging from 30 °C to 60 °C.

Does this fuse link come with any indicators?

Yes, it includes front indicators that provide a visual indication of the fuse status.

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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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