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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3NA3805 |
| Manufacturer | Siemens |
| Product Type | LV HRC Fuse Element |
| Rated Current (AC) | 16 A |
| Rated Voltage (AC) | 500 V |
| Rated Voltage (DC) | 250 V |
| Operating Class | gG |
| Size | NH000 |
| Switching Capacity (AC) | 120 kA (according to IEC 60947-2) |
| Switching Capacity (DC) | 25 kA (according to IEC 60947-2) |
| Identification Indicator | Front indicators |
| Assembly Type | Non-insulated grip lugs |
| Protection Class IP | IP20, with connected conductors |
| Climatic Class | -20 to +50 at 95% relative humidity |
| Ambient Temperature Range | -5°C to +40°C |
| Product Description | Utilises screw adapter or adapter sleeves for installation |
| Approvals and Certifications | Conforms to relevant international standards; refer to product datasheet for specific details |
The Siemens 3NA3805 is a high-quality low voltage high rupturing capacity (LV HRC) fuse element designed to provide reliable overcurrent protection in industrial settings. This component is part of the SENTRON protection device range and is characterised by its robust construction and dependable performance.
Crafted with precision, the 3NA3805 fuse element is rated for 16 A and is suitable for systems with supply voltages up to 500 V AC and 250 V DC. It features a gG operating class, which indicates it is designed for both overload and short-circuit protection, making it a versatile choice for a wide range of applications.
The fuse element is of the NH000 size, conforming to DIN EN 60269-1 standards, ensuring compatibility with standardised fuse holders and accessories. The design includes non-corroding, silver-plated blade contacts for a secure and long-lasting electrical connection.
One of the key features of the 3NA3805 is its front indicator, which provides a clear visual indication when the fuse has operated, allowing for quick identification and replacement. The fuse link is also designed with live grip lugs, facilitating safe and easy handling during maintenance.
With a switching capacity of 120 kA according to IEC 60947-2, this fuse element can handle significant fault currents, providing robust protection for electrical circuits. The power loss is minimised at 1.7 W per pole in a hot operating state, ensuring energy efficiency.
The 3NA3805 operates within an ambient temperature range of -5 °C to +40 °C and is rated for a climatic category of -20 to +50 at 95% relative humidity, making it suitable for challenging environmental conditions.
This LV HRC fuse element is an essential component for professionals seeking a reliable and efficient solution to protect electrical equipment from overcurrents in commercial and industrial installations.
Commonly Asked Questions
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Frequently Asked Questions
What is the operating class of this LV HRC fuse element?
The operating class of this LV HRC fuse element is gG, which is suitable for general applications, providing both overload and short-circuit protection.
Can this fuse element be used in both AC and DC applications?
Yes, this fuse element is designed for use in both AC and DC applications, with a rated voltage of 500 V for AC and 250 V for DC.
What is the rated current for this fuse element?
The rated current for this fuse element is 16 A.
Does this fuse element come with an indicator for blown fuses?
Yes, it features a front indicator that provides a visual indication when the fuse has operated.
What is the size of this fuse according to DIN EN 60269-1?
According to DIN EN 60269-1, the size of this fuse system is NH000.
What is the switching capacity of this fuse element?
The switching capacity of this fuse element is 120 kA according to IEC 60947-2 for AC, and 25 kA for DC.
What is the power loss rating for this fuse element?
The power loss rating for this fuse element is 1.7 W per pole in a hot operating state.
What are the environmental operating conditions for this fuse element?
The environmental operating conditions for this fuse element are an ambient temperature range of -5 °C to +40 °C and a climatic category of -20 to +50 at 95% relative humidity.
What is the protection class of this fuse element?
The protection class of this fuse element is IP20 with connected conductors.
What is the significance of the 'gG' operating class for this fuse element?
The 'gG' operating class signifies that the fuse element is designed for general application, providing protection for both overload and short-circuit conditions, making it versatile for a wide range of applications.
Part conditions explained
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