NH2 Size 2 gG HRC Knife-Blade Fuse Link 100kA - China Suppliers & Factory for Low-Voltage Systems
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Introducing the NH2 Size 2 square tube knife-blade HRC fuse link, an essential component for reliable cable and line protection. With overall dimensions of 160 × 86 × 78 mm, this fuse link adheres to IEC 60269-2 and GB 13539 standards, making it a trusted choice among suppliers. Rated for AC 500V/690V, it operates within a current range of 125–400A at 500V and 125–315A at 690V, boasting an impressive 100kA breaking capacity at 500V. Designed with a standard plug-in structure, this fuse fits all NH2 fuse bases, allowing for quick and easy replacements. It's widely used in low-voltage switchboards, distribution cabinets, and industrial power systems, making our factory a prime source for top-quality fuse solutions in China.
,Data Sheet
| Parameter | Value | Test Standard / Method |
|---|---|---|
| Frequency | 45－62Hz | Adopt network analyzer for testing |
| Voltage | 500V / 690V | Voltmeter |
| Current |
500V: 2A, 4A, 6A, 8A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A 690V: 2A, 4A, 6A, 8A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
Ammeter, clamp meter |
| Power dissipation of a fuse-link | 12W max | Millivoltmeter |
| Breaking capacity of a fuse-link |
500V: 100kA 690V: 50kA |
Type test |
| Utilization category of a fuse-link | gG | GB 13539.1-2015 GB/T 13539.2-2015 |
| Installation method | Square tube knife plug-in type | — |
Products Size
Applications
Protection against overload and short-circuit in electric lines (type gG), also available for protection of semiconductor parts and equipments against short-circuit (type aR) and protection of motors (type aM).
Design Features
Variable cross-section fuse element made from pure copper or silver sealed in cartridge made from high-duty ceramic; Fuse tube filled with chemically treated high-purity quartz sand as arc extinguishing medium. Dot-welding of fuse element ends to the terminals ensures reliable electric connection and forms insert knife type contacts. Indicator or striker may be attached to the fuse link to show cutout of fuse or to give various signals and to cut the circuit automatically.
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Frequently Asked Questions
What are the primary applications of this fuse-link?
It is primarily designed for overload and short-circuit protection in electric lines (type gG). It can also be utilized to protect semiconductor devices (type aR) and electric motors (type aM) against short-circuit conditions.
What is the breaking capacity of this product?
The breaking capacity is rated at 100kA at 500V AC and 50kA at 690V AC, tested in compliance with standard type testing procedures.
What materials are used for the fuse element and arc extinguishing?
The fuse element is made of pure copper or silver enclosed within a high-duty ceramic cartridge, filled with chemically treated high-purity quartz sand as the arc extinguishing medium.
What rated voltage and current ranges are supported?
The fuse supports 500V (rated 2A to 100A) and 690V (rated 2A to 63A) across operating frequencies of 45－62Hz.
What installation method is required for this fuse-link?
This series utilizes a square tube knife plug-in type mounting structure for secure and reliable connection.
Can an indicator or striker be attached to the fuse?
Yes, an indicator or striker may be attached to show fuse cutout status, provide signal feedback, and automatically cut the circuit.