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MERSEN FUSE NH 3 500A 400V GG SGL NH3GG40V500-1
Mersen NH3GG40V500-1 NH3 gG fuse link rated at 500 A and 400 V AC, featuring isolated gripping lugs, a double indicator and a 100 kA breaking capacity.
£38.92
Why Choose the Mersen NH3GG40V500-1 NH Fuse Link?
The Mersen NH3GG40V500-1 is a high-performance NH3 gG low-voltage fuse link designed to protect electrical cables, distribution circuits and industrial equipment against overloads and short-circuit currents. Manufactured to DIN NH standards, this full-range fuse link provides dependable circuit protection for demanding commercial and industrial electrical installations.
With a rated current of 500 A and an operating voltage of 400 V AC, the NH3GG40V500-1 can interrupt fault currents across its full operating range. Its high breaking capacity helps protect equipment from the thermal and electrodynamic effects associated with severe short circuits.
The fuse link features isolated gripping lugs, silver-plated copper contact blades and a ceramic body for reliable electrical and mechanical performance. A double indication system provides clear visual confirmation of fuse operation, while the standard NH3 format supports installation in compatible NH fuse bases and switch-fuse assemblies.
Key Advantages
- Full-range gG fuse characteristic for overload and short-circuit protection.
- 500 A rated current for high-capacity electrical distribution circuits.
- 400 V AC rated voltage for low-voltage industrial systems.
- High 100 kA AC breaking capacity for dependable fault-current interruption.
- Isolated gripping lugs improve safety during professional fuse handling.
- Double indicator provides clear fuse-status identification.
Key Features
- Mersen DIN NH standard fuse link.
- NH3 fuse size.
- 500 A rated current.
- 400 V AC rated voltage.
- Full-range gG operating characteristic.
- 100 kA maximum AC breaking capacity.
- Double fuse-operation indicator.
- Isolated metal gripping lugs.
- Silver-plated copper contact blades.
- Durable ceramic fuse body.
Reliable Protection for High-Current Electrical Circuits
The Mersen NH3GG40V500-1 uses a full-range gG fuse characteristic to protect cables, conductors and electrical equipment against both overload currents and high-level short circuits. When excessive current flows through the fuse element, the link interrupts the circuit before damaging thermal or mechanical stresses can affect downstream equipment.
Its high breaking capacity makes the fuse suitable for industrial installations where substantial prospective fault currents may occur. The NH design provides robust blade contacts and secure installation within a compatible fuse base, although installation and replacement must be carried out by qualified electrical personnel using suitable NH fuse-handling equipment.
Typical Applications
- Industrial low-voltage distribution boards.
- Electrical cable and conductor protection.
- Switch-fuse units and fuse-switch disconnectors.
- Manufacturing and process-control installations.
- Commercial power distribution systems.
- Industrial machinery supply circuits.
- Motor feeder and equipment protection circuits.
- Infrastructure and utility electrical systems.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 500 A | |
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Product range | NH Fuse Links | |
| Model | NH3GG40V500-1 | |
| Manufacturer item number | L223754 | |
| Product type | NH low-voltage fuse link | |
| Fuse characteristic | gG | |
| Fuse size | NH3 | |
| Rated current | 500 A | |
| Rated voltage | 400 V AC | |
| Maximum AC breaking capacity | 100 kA | |
| Current type | AC | |
| Indication system | Double indicator | |
| Gripping-lug design | Isolated tags | |
| Terminal material | Silver-plated copper | |
| Terminal type | Solid blade contacts | |
| Body material | Ceramic | |
| Mounting type | Clip mounting in compatible NH fuse base | |
| Dimensions (L × W × H) | approx. 150 × 72 × 89 mm | |
| Body width | approx. 71.9 mm | |
| Product weight | approx. 1.05 kg | |
| Power dissipation at rated current | approx. 31.1 W | |
| EAN | 8430399022062 | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GG40V500-1 used for?
The fuse link is used to protect low-voltage cables, distribution circuits and industrial equipment against overloads and short-circuit currents.
What is the current rating of this fuse link?
The Mersen NH3GG40V500-1 has a rated current of 500 A.
What voltage is the NH3GG40V500-1 designed for?
This NH fuse link is designed for electrical systems operating at up to 400 V AC.
What does the gG fuse classification mean?
The gG classification indicates a full-range general-purpose fuse capable of protecting cables and equipment against both overload and short-circuit currents.
Does this fuse include a visual indicator?
Yes. The NH3GG40V500-1 includes a double indication system that helps identify when the fuse has operated.
Trusted Industrial Circuit Protection
Mersen NH fuse links are widely used by electrical engineers, panel builders and industrial maintenance professionals to provide reliable protection for high-current low-voltage distribution systems.
