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MERSEN FUSE NH 2 300A 500V GG SGL NH2GG50V300-1
Mersen NH2GG50V300-1 DIN NH2 gG fuse link rated at 300 A, 500 V AC and 250 V DC, featuring a 120 kA breaking capacity, double indication and isolated gripping lugs.
£14.68
Why Choose the Mersen NH2GG50V300-1 NH Fuse Link?
The Mersen NH2GG50V300-1 is a high-performance NH2 gG fuse link designed to provide dependable full-range protection for industrial cables, conductors, switchgear and electrical equipment. Manufactured as part of Mersen’s low-voltage IEC fuse range, this DIN-standard fuse link protects electrical installations against sustained overloads and high short-circuit currents.
Featuring a gG operating characteristic, the NH2GG50V300-1 offers protection across the complete fault-current range. Its current-limiting design helps reduce the thermal and electrodynamic stress placed on cables, busbars and connected equipment, supporting improved installation reliability and reduced downtime following an electrical fault.
With a rated current of 300 A, an AC voltage rating of 500 V and a DC voltage rating of 250 V, this NH size 2 fuse link is suitable for industrial distribution boards, switchgear assemblies and machinery power circuits. Its double indicator enables quick identification of fuse operation, while the isolated gripping lugs improve handling safety during professional installation and replacement.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 300 A rated current for demanding industrial electrical loads.
- Suitable for circuits rated up to 500 V AC and 250 V DC.
- High 120 kA AC breaking capacity for severe fault conditions.
- Double indication system supports rapid identification of an operated fuse.
- Isolated gripping lugs improve handling safety during fuse replacement.
Key Features
- Mersen NH gG low-voltage fuse-link range.
- 300 A current rating.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- NH2 DIN fuse size.
- gG full-range operating characteristic.
- Integrated double fuse-operation indicator.
- Isolated gripping lugs.
- Plain brass blade terminals.
- Robust ceramic insulating body.
Reliable Protection for Industrial Power Systems
The Mersen NH2GG50V300-1 disconnects the electrical supply when excessive current exceeds the fuse’s operating limits. Its current-limiting performance reduces the amount of thermal and mechanical energy passed to cables, switchgear and connected equipment during a short-circuit fault.
As a gG full-range fuse link, this model protects against both overload currents and high short-circuit currents. It can therefore be used as the primary protective fuse in appropriately designed industrial distribution circuits. Installation and replacement should only be completed by qualified electrical personnel using a compatible NH fuse base and approved fuse-handling equipment.
Typical Applications
- Industrial power distribution boards.
- Low-voltage switchgear assemblies.
- Cable and conductor protection.
- Electrical control panels and cabinets.
- Industrial machinery power supplies.
- Commercial and manufacturing installations.
Technical Specifications
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| Current | 300 A | |
|---|---|---|
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH2 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | NH Fuse Links gG 500 V AC | |
| Model | NH2GG50V300-1 | |
| Item number | H219289 | |
| Product type | DIN NH low-voltage fuse link | |
| Operating characteristic | gG | |
| Rated current | 300 A | |
| Rated AC voltage | 500 V AC | |
| Rated DC voltage | 250 V DC | |
| AC breaking capacity | 120 kA | |
| Fuse size | NH2 | |
| Indication system | Yes | |
| Indication type | Double indicator | |
| Gripping lugs | Isolated | |
| Terminal type | Plain blades | |
| Terminal material | Brass | |
| Body material | Ceramic | |
| Power dissipation at rated current | 21 W | |
| Dimensions (L × W × H) | 150 × 52 × 74 mm | |
| Product weight | Approx. 0.64 kg | |
| EAN / UPC | 8430399002217 | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH2GG50V300-1 used for?
This fuse link protects industrial cables, conductors, switchgear and connected electrical equipment against overloads and short-circuit faults.
What is the rated current of this fuse?
The Mersen NH2GG50V300-1 has a rated current of 300 A.
What voltage is the NH2GG50V300-1 rated for?
The fuse link is rated for electrical circuits operating at up to 500 V AC or 250 V DC.
What does the gG operating characteristic mean?
A gG fuse provides full-range protection against both overload currents and short-circuit currents for general-purpose cables and electrical equipment.
Why does this fuse have isolated gripping lugs?
The isolated gripping lugs help improve handling safety when qualified personnel install or replace the fuse using an appropriate NH fuse puller.
Trusted Industrial Circuit Protection
Mersen NH fuse links are widely used by electrical engineers, panel builders and industrial maintenance professionals to provide dependable protection for low-voltage cables, switchgear and power distribution equipment.
