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Siemens

3NA7822

£37.08 (ex. VAT)

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Marvo Stock ID MV-79PR
HS Code 853610
SKU 3NA7822
Condition New unboxed
Warranty 12 months

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Specification & Description

Specification Description
Part Number 3NA7822
Alternative Part Number 3NA7822
Manufacturer Siemens
Product Brand Name SENTRON
Product Designation LV HRC Fuse Link
Operating Class gG
Size of Fuse System NH000 according to DIN EN 60269-1
Rated Operational Current (AC) 63 A
Supply Voltage (AC) 500 V
Supply Voltage (DC) 250 V
Switching Capacity Current (AC) 120 kA according to IEC 60947-2
Switching Capacity Current (DC) 25 kA according to IEC 60947-2
Power Loss 4.6 W per pole in hot operating state
Mounting Position Any, preferably vertical
Net Weight 130 g
Protection Class IP IP20, with connected conductors
Climatic Class -20 to +50 at 95% relative humidity
Design of the Switching Contact Non-corroding, silver-plated
Design of the Identification Indicator Combination alarms
Design of the Fuse Link LV HRC fuse link
Mounting Type Non-insulated grip lugs
Ambient Operating Temperature -5 °C to 40 °C
Ambient Storage Temperature Air humidity 90% at 20 °C
Reference Code According to DIN EN 61346-2 F and DIN EN 81346-2 F

The Siemens 3NA7822 is a high-quality low voltage HRC (High Rupturing Capacity) fuse link designed to provide reliable overcurrent protection in industrial and commercial electrical systems. This LV HRC fuse link is part of the SENTRON product family, known for its robustness and efficiency in safeguarding electrical circuits.

With a rated operational current of 63 A and an operating class of gG, the 3NA7822 is suitable for general-purpose applications, capable of handling both AC and DC currents. It is rated for a supply voltage of up to 500 V for AC and 250 V for DC, making it versatile for various electrical setups.

The fuse link features non-insulated grip lugs and a combination indicator for easy identification of fuse status, enhancing maintenance procedures. Its design includes non-corroding, silver-plated switching contacts that ensure longevity and consistent performance.

The 3NA7822 is designed to fit into a size NH000 fuse system according to DIN EN 60269-1 standards and boasts an impressive switching capacity current of 120 kA according to IEC 60947-2 for AC, and 25 kA for DC. This high switching capacity ensures that the fuse can safely interrupt fault currents without damage to the system.

For installation flexibility, the fuse link can be mounted in any position, with vertical orientation preferred. It also has an IP20 protection class rating with connected conductors, signifying a basic level of protection against solid objects.

The environmental operating conditions for the 3NA7822 allow for a wide temperature range, from -5 °C to +40 °C during operation, and it can withstand up to 95% relative humidity at 50 °C, ensuring reliable performance in various climates.

The Siemens 3NA7822 is a dependable choice for electrical protection, offering both safety and durability for a wide range of applications in electrical distribution systems.

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 is the operating class of this fuse link?

The operating class of this fuse link is gG, which is suitable for general applications.

Can this fuse link be used in both AC and DC applications?

Yes, this LV HRC fuse link is designed for use with both AC and DC supply voltages.

What is the rated current for this fuse link?

The rated current for the 3NA7822 fuse link is 63 A.

What are the supply voltage ratings for this fuse link?

The supply voltage ratings are 690 V for AC and 250 V for DC.

What is the switching capacity of this fuse link?

The switching capacity is 120 kA for AC according to IEC 60947-2 and 25 kA for DC.

What is the design of the fuse link?

The fuse link is a low-voltage high-rupturing capacity (LV HRC) fuse link with non-corroding, silver-plated blade contacts.

What is the protection class of this fuse link?

The protection class is IP20, with connected conductors.

What are the environmental operating conditions for this fuse link?

The ambient operating temperature range is from -5 °C to +40 °C, with a relative humidity of up to 95% at 50 °C.

What is the mounting position for this fuse link?

The fuse link can be mounted in any position, but a vertical orientation is preferable.

What are the dimensions of this fuse link?

The width of the enclosure for the fuse link is 30 mm, and it has a net weight of 197 g.

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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.

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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.