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MERSEN FUSE NH 3C 300A 500V GG SGL NH3GG50V300-1
Mersen NH3GG50V300-1 NH Size 3 gG fuse link rated at 300 A, 500 V AC and 250 V DC, with a 120 kA breaking capacity, isolated gripping lugs and double indicator.
£26.03
Why Choose the Mersen NH3GG50V300-1 NH Fuse Link?
The Mersen NH3GG50V300-1 is a high-performance NH gG low voltage fuse link designed to protect industrial power distribution systems, electrical cables and equipment against overload and short-circuit conditions. Manufactured by Mersen, this DIN standard fuse link provides dependable full-range protection for demanding commercial and industrial electrical installations.
The NH3GG50V300-1 features isolated gripping lugs and a double operating indicator, improving safety during maintenance while allowing engineers to identify an operated fuse quickly. Its durable ceramic body, silver-plated copper terminals and high breaking capacity support reliable operation in switchboards, control panels and industrial power systems.
With a rated current of 300 A, a 500 V AC operating voltage and an NH Size 3 format, this fuse link is suitable for high-current distribution circuits, industrial machinery and electrical infrastructure requiring robust and dependable fault protection.
Key Advantages
- Full-range gG fuse link for overload and short-circuit protection.
- 300 A rated current for high-current industrial applications.
- 500 V AC and 250 V DC ratings for flexible circuit protection.
- High 120 kA AC breaking capacity for effective fault interruption.
- Isolated gripping lugs improve safety during fuse handling and replacement.
- Double indicator enables quick visual identification of fuse operation.
Key Features
- Mersen NH gG fuse-link series.
- 300 A rated current.
- 500 V AC / 250 V DC rated voltage.
- NH Size 3 DIN standard construction.
- 120 kA AC breaking capacity.
- Double operating indicator.
- Isolated gripping lugs for safer maintenance.
- Silver-plated copper plain-blade terminals.
Reliable Protection for High-Current Electrical Systems
The Mersen NH3GG50V300-1 uses a gG operating characteristic to provide full-range protection against both sustained overloads and high-level short circuits. This helps protect electrical cables, switchgear, distribution equipment and connected machinery from thermal damage and potentially destructive fault currents.
Its 120 kA AC breaking capacity enables the fuse to interrupt substantial prospective fault currents safely. The double indicator and isolated gripping lugs also simplify maintenance by improving fuse status visibility and reducing the risk of accidental contact during replacement by appropriately qualified personnel.
Typical Applications
- Industrial power distribution systems.
- Main electrical switchboards and distribution panels.
- Industrial machinery and production equipment.
- Motor control centres and automation installations.
- Commercial and industrial cable protection.
- OEM electrical panels and switchgear assemblies.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 300 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | NH gG Fuse Links | |
| Model | NH3GG50V300-1 | |
| Item number | S211087 | |
| Product type | NH gG low voltage fuse link | |
| Rated current | 300 A | |
| Rated voltage AC | 500 V AC | |
| Rated voltage DC | 250 V DC | |
| Fuse size | NH3 | |
| Operating class | gG | |
| AC breaking capacity | 120 kA | |
| Indication system | Double indicator | |
| Gripping lugs | Isolated | |
| Terminal type | Plain blades | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Mounting type | Clip mounting | |
| Power dissipation at rated current | 20 W | |
| Dimensions (L × W × H) | 150 × 52 × 89 mm | |
| Weight | Approx. 0.65 kg | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GG50V300-1 used for?
It is used to protect high-current electrical cables, distribution circuits, switchgear and industrial equipment against overloads and short circuits.
What is the rated current of this fuse?
The NH3GG50V300-1 has a rated current of 300 A.
What voltage ratings does this fuse support?
This fuse link is rated for operation at up to 500 V AC and 250 V DC.
What does the gG operating class mean?
The gG classification indicates that the fuse provides full-range protection against both overload and short-circuit conditions in general-purpose electrical circuits.
What is the breaking capacity of this fuse?
The NH3GG50V300-1 has an AC breaking capacity of 120 kA, allowing it to interrupt high prospective fault currents safely.
Trusted for Industrial Circuit Protection
Mersen NH gG fuse links are widely specified by electrical engineers, panel builders and industrial maintenance professionals for reliable protection of power distribution systems, cables and critical electrical equipment.
