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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.
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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.
