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MERSEN FUSE NH 3C 400A 500V GG NH3GG50V400
Mersen NH3GG50V400 DIN NH Size 3 gG fuse link with 400 A rating, 500 V AC and 250 V DC operation, featuring live gripping lugs and double indicator for industrial circuit protection.
£16.14
Why Choose the Mersen NH3GG50V400 NH Fuse Link?
The Mersen NH3GG50V400 is a robust DIN NH gG fuse link engineered to provide dependable overload and short circuit protection in low voltage electrical distribution systems. Manufactured by Mersen, this NH Size 3 fuse is designed to protect cables, switchgear, motors, transformers and other critical electrical equipment operating in demanding industrial environments.
Designed in accordance with IEC standards, the NH3GG50V400 features a 400 A current rating, 500 V AC and 250 V DC operation. Its live gripping lugs and double indicator provide safer handling and allow maintenance personnel to quickly identify when fuse replacement is required.
Offering high breaking capacity and long-term reliability, the NH3GG50V400 is widely used in industrial switchboards, power distribution panels and heavy-duty electrical installations where dependable overcurrent protection is essential.
Key Advantages
- High-performance DIN NH gG fuse link for industrial electrical protection.
- 400 A current rating for heavy-duty power distribution applications.
- 500 V AC / 250 V DC operating voltage.
- Suitable for protecting cables, transformers, motors and switchgear.
- Double indicator enables rapid visual fuse status identification.
- Live gripping lugs assist with safe installation and replacement by qualified personnel.
- Manufactured to IEC and DIN NH standards for dependable performance.
Key Features
- Mersen NH fuse-links gG 500 VAC series.
- NH Size 3.
- 400 A rated current.
- 500 V AC / 250 V DC rated voltage.
- General purpose gG utilisation category.
- Double indicator with live gripping lugs.
- Body width approximately 52 mm.
- Designed for industrial low voltage power distribution.
Reliable Protection for Industrial Power Systems
NH fuse links are designed to disconnect fault currents rapidly, helping to prevent costly damage to electrical equipment and minimise system downtime. The Mersen NH3GG50V400 provides dependable protection against overloads and short circuits while supporting safe operation of industrial electrical installations.
Its rugged construction and high fault interrupting capability make it suitable for demanding industrial environments including manufacturing plants, commercial facilities and heavy-duty power distribution systems.
Typical Applications
- Industrial switchgear.
- Low voltage distribution panels.
- Motor protection circuits.
- Transformer protection.
- Cable and conductor protection.
- Industrial and commercial electrical installations.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 400 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | NH Fuse-links gG 500 VAC | |
| Model | NH3GG50V400 | |
| Product type | NH fuse link | |
| Fuse size | NH3 | |
| Rated current | 400 A | |
| Rated voltage AC | 500 V AC | |
| Rated voltage DC | 250 V DC | |
| Utilisation category | gG | |
| Body width | Approx. 52 mm | |
| Weight | Approx. 0.65 kg | |
| Indicator | Double indicator | |
| Gripping lugs | Live gripping lugs | |
| Standards | IEC / DIN NH | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GG50V400 used for?
It protects industrial electrical circuits, cables, motors and switchgear against overloads and short circuits.
What is the current rating of this fuse?
The NH3GG50V400 has a 400 A rated current.
What voltage is the fuse designed for?
This fuse is rated for 500 V AC and 250 V DC applications.
What does the gG classification mean?
The gG utilisation category identifies a full-range general purpose fuse designed to protect cables and electrical equipment against overload and short circuit faults.
Where is the NH3GG50V400 commonly installed?
It is commonly installed in industrial switchboards, distribution equipment and electrical control systems requiring reliable overcurrent protection.
Trusted for Industrial Circuit Protection
Mersen NH fuse links are trusted by electrical engineers, panel builders and industrial maintenance professionals worldwide for delivering reliable overcurrent protection and dependable long-term performance in demanding electrical installations.
