Table of contents
Component Details
The DF Electric HRC Fuse (IEC/EN 60269 NH000 GG/GL) with a 63A rating and 500V is a highly specialized component used for overcurrent protection in electrical circuits. It is manufactured to the international standards outlined in IEC/EN 60269, specifically the NH000 GG/GL series, which provides guaranteed performance and compatibility with other electrical equipment.
The fuse is designed to limit the current in an electrical circuit in the event of an overload or short circuit. Its high rupturing capacity (HRC) ensures that it can withstand the high inrush currents generated by electrical motors and other equipment without blowing, providing reliable overcurrent protection.
The HRC fuses are constructed using a ceramic tube filled with high-current conductive material, typically molybdenum disilicide (MoSi2), which melts under excessive current, opening the circuit. The tube is also encapsulated in a stainless-steel protective sheath, providing mechanical strength and improved performance in harsh environments.
The DF Electric HRC Fuse offers a number of technical characteristics that make it suitable for industrial control panels and power distribution systems, including:
– Maximum rated current: 63A
– AC or DC voltage rating: 500V
– Breaking capacity: 20,000 Amp.’s
– Duration of fuse elements: Type GG (and Type GL) provides a maximum duration of 250ms for standard applications.
– Breaking current: 150kA (10/35kA for higher durations)
– Maximum surge current: 150kA for 8/20ms.
DF Electric also offers a non-indicating and time delay version for signaling purposes under the same product code.
Application
The DF Electric HRC Fuse (IEC/EN 60269 NH000 GG/GL) with a 63A rating and 500V is commonly used in industrial control panels and power distribution systems to protect electrical circuits from overcurrent conditions. Its high-current interrupting capability and guaranteed performance make it an excellent choice for meeting international and local standards, such as IEC or EN, in this sector.
The fuse is also suitable for use in low-voltage applications such as switch rooms, generator controls, and power supply stations. Its high rupturing capacity ensures that it can withstand the high inrush currents generated by electrical motors and other equipment without blowing, providing reliable overcurrent protection.
In addition, DF Electric’s HRC fuses can be used in various other electrical applications, including:
– European and national electricity distribution networks
– Wind power plants, railway systems, and transformer centers
– Data centers, cable television lines, and telecommunication networks
– Solar and wind power generators.
Uses
The DF Electric HRC Fuse is specially designed for use in overcurrent protection applications in electrical circuits. Its uses include:
– Providing protection against overload currents, such as those generated by starting motors, switching on of high-energy consuming loads, and surge currents. – Ensuring safe electrical operation by limiting the maximum current allowed to flow through an electrical circuit, in order to protect it from damage or component malfunction due to excessive current draw. – Protecting electrical circuits against short circuits by reacting rapidly and limiting the maximum fault current to a safe level.
Maintainance
To ensure the reliable and safe operation of the DF Electric HRC Fuse (IEC/EN 60269 NH000 GG/GL) with a 63A rating and 500V, the following maintenance practices are recommended:
– Inspection of the fuse prior to installation to ensure it is compatible with the specific application and meets the relevant local and international standards. – Regular inspection of the fuse at established intervals, as recommended by the manufacturer or as specified by the relevant technical standards or guidelines. – Careful handling and installation of the fuse to avoid damage, such as cracking or bending of the ceramic tube, which could compromise its performance or cause it to fail prematurely. – Use of appropriate installation methods and accessories, such as fuse links, holders, and disconnectors, as recommended by the manufacturer. – Use of appropriate fuse testing equipment, such as fuse testers or fuse travelling cards, to verify that the fuse is functioning correctly and within its normal operating range. – Keeping detailed records of fuse maintenance, inspections, and tests to facilitate efficient and effective maintenance planning and reduction of maintenance costs.
Can you please add some visual aids like diagrams to explain how the fuse works? And also, can you provide some information on the history and development of this fuse type?
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