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Siemens 3NA7824

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£34.08 (ex. VAT)

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Marvo Stock ID MV-79PT
HS Code 85361090
SKU 3NA7824
Condition New unboxed
Warranty 12 months
Weight (kg) 0.12
Length (mm) 49.70
Width (mm) 21.00
Height (mm) 77.80

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Specification & Description

Specification Description
Part Number 3NA7824
Alternative Part Number 3NA7824
Manufacturer Siemens
Category LV HRC fuse element
Net Weight 122 g
Designation Standards DIN EN 61346-2 F, IEC 81346-2 F
Approvals General Product Approval, Declaration of Conformity, Test Certificates, Special Test Certificate
Commodity Code 853610

The Siemens 3NA7824 is a low-voltage high rupturing capacity (LV HRC) fuse element designed to provide reliable overcurrent protection in industrial settings. This fuse link is rated for 80A and is suitable for both AC systems up to 500V and DC systems up to 250V, ensuring versatility across various applications. It features non-insulated grip lugs and a combination indicator for ease of installation and status checking.

Crafted to meet the stringent requirements of DIN EN 60269-1, the 3NA7824 is classified under the gG operating class, which signifies its capability to protect both cables and equipment against short circuits and overloads. The fuse link boasts a substantial switching capacity, with a rated value of 120kA according to IEC 60947-2 for AC and 25kA for DC, highlighting its robust interrupting capacity.

The design of the 3NA7824 includes a combination alarm indicator, which provides a clear visual signal in the event of a fuse operation, enhancing maintenance efficiency. Its non-insulated grip lugs facilitate straightforward mounting, and the fuse can be installed in any orientation, with vertical being preferred for optimal performance.

With an IP20 protection class when connected to conductors, the fuse link is safeguarded against the ingress of solid objects, ensuring continued operation in environments where contact with equipment is likely. The climatic class rating of -20 to +50 degrees Celsius at 95% relative humidity underlines the component's resilience in varying atmospheric conditions.

The Siemens 3NA7824 is a testament to reliable and efficient circuit protection, making it an essential component for industrial electrical safety and operational continuity.

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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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 function of this LV HRC fuse element?

The LV HRC (Low Voltage High Rupturing Capacity) fuse element is designed to protect electrical equipment by safely interrupting excessive current flow and preventing damage due to overcurrent conditions.

Can this fuse element be used in residential applications?

This fuse element is typically used in industrial settings due to its high rupturing capacity. It's not commonly used in residential applications, which usually require different types of fuses.

What are the typical applications for this fuse element?

It is commonly used in industrial electrical systems, control panels, and heavy machinery to provide circuit protection and ensure operational safety.

How do I determine if this fuse element is compatible with my system?

You should check the specifications of your existing fuse or electrical system, including the voltage, current rating, and physical size, to ensure compatibility with the 3NA7824.

What should I do if the fuse element blows?

If the fuse element blows, it should be replaced with a new one of the same specifications. Additionally, it's important to investigate the cause of the overcurrent to prevent future occurrences.

Are there any special handling or installation procedures for this fuse element?

Installation should be carried out in accordance with the electrical standards and safety regulations applicable to your region. Always ensure the power is turned off before replacing the fuse element.

How can I dispose of a used fuse element safely?

Used fuse elements should be disposed of in accordance with local environmental regulations and recycling programs. They should not be disposed of in regular waste due to the materials they contain.

What materials are used in the construction of this fuse element?

The fuse element is typically made from materials that provide reliable thermal and electrical conductivity, such as copper or silver, along with a ceramic or glass body for insulation.

Is there a specific orientation required when installing this fuse element?

Fuse elements like the 3NA7824 do not typically require a specific orientation, but it's always best to follow the manufacturer's installation guidelines.

How can I verify the authenticity of this fuse element?

To verify authenticity, purchase from authorised distributors and check for the manufacturer's markings and part numbers on the product.

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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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