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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3NA3260 |
| Manufacturer | Siemens |
| Product Type | LV HRC Fuse |
| Rated Current (In) | 400 A |
| Operating Class | gG |
| Mounting Type | Vertical Mount, Non-insulated grip lugs |
| Size of Fuse System | NH2 according to DIN EN 60269-1 |
| Supply Voltage (AC) | Rated value 500 V |
| Supply Voltage (DC) | 440 V |
| Protection Class | IP20 with connected conductors |
| Switching Capacity Current | 120 kA according to IEC 60947-2, 25 kA for DC according to IEC 60947-2 |
| Active Power Loss | 29 W per pole in hot operating state for rated current with AC |
| Ambient Operating Temperature | Minimum -5 °C, Maximum 40 °C |
| Environmental Conditions | Can operate in environmental category -20 to +50 at 95% relative humidity |
| Design | LV HRC fuse link with front indicators and non-corroding, silver-plated switching contact |
The Siemens 3NA3260 is a high-quality low voltage high rupturing capacity (LV HRC) fuse element designed for robust and reliable circuit protection. With a 400 A current rating and compatibility with both AC and DC systems, this fuse is versatile for a wide range of industrial applications. It features a vertical mount design and conforms to the NH2 size class, ensuring it fits seamlessly into standard setups.
Crafted for performance, the 3NA3260 operates with an 'gG' operating class, indicating its suitability for cable and line protection due to its general-purpose characteristics. The fuse is rated for use at 500 V AC and 440 V DC, providing ample protection for high-power circuits. Its design includes non-insulated grip lugs and front indicators for ease of installation and status checking.
The 3NA3260 is engineered to maintain functionality within a broad range of environmental conditions, with an operational ambient temperature range from -5 °C to 40 °C and a climatic category rating that withstands -20 to +50 at 95% relative humidity. This ensures the fuse can reliably operate in various challenging environments.
Siemens' commitment to quality is evident in the 3NA3260's construction, which includes non-corroding, silver-plated switching contacts for longevity and reliability. The fuse link is also designed with a protection class of IP20 when connected to conductors, providing a basic level of protection against solid objects.
This LV HRC fuse element is an essential component for industrial professionals seeking a dependable solution for circuit protection in power distribution and control systems. Its robust design and compliance with industry standards make it a preferred choice for safeguarding electrical infrastructure.
Commonly Asked Questions
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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, specifically designed for vertical mounting and falls under the NH2 class.
What is the current rating for this fuse?
The current rating for this fuse is 400 A, making it suitable for high-current applications.
Can this fuse be used with alternating current systems?
Yes, this fuse is designed for use with alternating current (AC) systems and has a rated voltage of 500 V AC.
What is the operating temperature range for this fuse?
The operating temperature range for this fuse is between -5°C and 40°C, ensuring reliable performance across a range of environmental conditions.
What is the environmental category for this fuse?
The environmental category for this fuse is -20 to +50 at 95% relative humidity, which indicates its suitability for various climatic conditions.
What are the dimensions of this fuse?
The dimensions for this fuse are 58.3 mm x 12.2 mm x 72.4 mm x 147.6 mm x 57 mm, ensuring compatibility with standard fuse mounts.
What is the breaking capacity for this fuse?
This fuse has a general application gG class breaking capacity, which means it is suitable for both overload and short-circuit protection.
Is there a special test certificate available for this fuse?
Yes, there are type test certificates and reports available for this fuse, which attest to its compliance with industry standards.
What is the significance of the NH2 class for this fuse?
The NH2 class indicates the size and application range of the fuse, with NH2 being suitable for higher current applications compared to lower NH classes.
How can I ensure this fuse is compatible with my system?
You should verify the current rating, voltage rating, and physical dimensions of the fuse against your system's requirements to ensure compatibility.
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