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Siemens

3NA3020

£34.23 (ex. VAT)

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Marvo Stock ID MV-79I9
HS Code 85361010
SKU 3NA3020
Condition New unboxed
Warranty 12 months
Weight (kg) 0.27
Length (mm) 68.10
Width (mm) 30.00
Height (mm) 123.90

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Specification & Description

Specification Description
Part Number 3NA3020
Manufacturer Siemens
Product Brand Name SENTRON
Product Designation LV HRC fuse link
Design of the Product With blade contacts
Identification Indicator Front indicators
Switching Contact Design Non-corroding, silver-plated
Fuse Link Design LV HRC fuse link
Size of Fuse System NH0
Operating Class gG
Mounting Type Non-insulated grip lugs
Type of Voltage AC
Supply Voltage (AC) 500 V
Supply Voltage (DC) 440 V
Protection Class IP20, with connected conductors
Breaking Capacity (AC) 120 kA
Breaking Capacity (DC) 25 kA
Power Loss 4.5 W
Width of the Enclosure 30 mm
Mounting Position Any, preferably vertical
Net Weight 266 g
Ambient Temperature (Min) -5 °C
Ambient Temperature (Max) 40 °C
Environmental Category -20 to +50 at 95% relative humidity
Environmental Category (Storage) 90% at 20°C
Certificates General Product Approval, Declaration of Conformity, Test Certificates, Special Test Certificate, Type Test Certificates/Test Report, Environmental Confirmations
Additional Information The Siemens 3NA3020 is a high-quality LV HRC fuse link designed for reliable protection in electrical systems. It features a robust construction with non-corroding, silver-plated switching contacts and front indicators for easy identification. Suitable for both AC and DC applications, this fuse link ensures high breaking capacity and efficient performance. Ideal for various industrial applications, it offers dependable operation in a wide range of environmental conditions.

The Siemens 3NA3020 is a high-quality LV HRC fuse element designed for reliable protection in low voltage applications. This fuse link, part of the SENTRON family, is engineered to safeguard electrical circuits by interrupting excessive currents, thereby preventing potential damage to equipment and ensuring operational safety.

Rated for a current of 50A, the 3NA3020 fuse element is suitable for both AC (up to 500V) and DC (up to 440V) applications. It features a gG operating class, making it ideal for general protection purposes. The fuse is designed with non-insulated grip lugs and a front indicator for easy identification and installation.

Constructed to meet the NH0 size standard according to DIN EN 60269-1, this fuse element boasts a robust design with non-corroding, silver-plated switching contacts. It offers a high switching capacity of 120kA for AC and 25kA for DC, ensuring reliable performance under fault conditions.

The Siemens 3NA3020 is built to operate within a wide ambient temperature range of -5°C to 40°C and can withstand environmental conditions of -20°C to +50°C at 95% relative humidity. It is rated IP20 for protection against solid objects and is designed for vertical mounting, although it can be installed in any position.

With a power loss of 4.5W, this fuse element ensures efficient operation while maintaining safety standards. The Siemens 3NA3020 is a dependable choice for protecting electrical systems in various industrial and commercial settings.

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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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 type of fuse is this?

This is a low voltage high rupturing capacity (LV HRC) fuse element.

What is the rated current for this fuse?

The rated current for this fuse is 50 A.

What are the voltage ratings for this fuse?

The voltage ratings for this fuse are 500 V AC and 440 V DC.

What is the breaking capacity of this fuse?

The breaking capacity is 120 kA for AC and 25 kA for DC.

What type of indicator does this fuse have?

This fuse features a front indicator.

What is the size of this fuse according to EN 60269-1?

The size of this fuse is NH0 according to EN 60269-1.

What is the protection class of this fuse?

The protection class is IP20 when connected with conductors.

What are the environmental conditions for operating this fuse?

The ambient temperature during operation ranges from -5 °C to 40 °C, and it can operate in an environmental category of -20 to +50 at 95% relative humidity.

What is the power loss of this fuse?

The power loss for this fuse is 4.5 W.

What is the weight of this fuse?

The net weight of this fuse is 266 g.

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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.