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MERSEN FUSE NH 3 800A 500V GG NH3GG50V800
Mersen NH3GG50V800 DIN NH3 gG fuse link rated at 800 A, 500 V AC and 250 V DC with double indication, live gripping lugs and a 120 kA AC breaking capacity.
£40.42
Why Choose the Mersen NH3GG50V800 NH Fuse Link?
The Mersen NH3GG50V800 is a heavy-duty DIN NH gG fuse link designed to provide full-range protection for low-voltage electrical distribution systems, industrial switchgear and high-current power circuits. Manufactured by Mersen, this NH3 fuse link protects cables, conductors and electrical equipment against both overloads and high prospective short-circuit currents.
Part of the trusted Mersen NH gG 500 V AC fuse range, the NH3GG50V800 features live gripping lugs and a double indication system, allowing maintenance personnel to quickly identify an operated fuse and safely replace it using an approved NH fuse puller. Its current-limiting design helps reduce thermal and mechanical stresses on switchgear, busbars and connected equipment during electrical faults.
With a rated current of 800 A, a 500 V AC operating voltage, a 250 V DC rating and a high 120 kA AC breaking capacity, the NH3GG50V800 is ideal for industrial switchboards, power distribution systems and heavy-duty commercial installations requiring dependable circuit protection.
Key Advantages
- Full-range gG protection for cables and electrical equipment.
- 800 A rated current for high-capacity industrial distribution systems.
- 500 V AC and 250 V DC rated voltage.
- 120 kA AC breaking capacity for reliable fault interruption.
- Current-limiting performance helps reduce fault energy.
- Double indication system enables rapid fuse-status identification.
- Live gripping lugs support safe fuse replacement.
- Designed to IEC and DIN NH standards.
Key Features
- Mersen NH gG fuse link series.
- NH3 DIN fuse size.
- 800 A rated current.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- Full-range gG operating characteristic.
- 120 kA AC breaking capacity.
- Double operating indicator.
- Live gripping lugs.
- Ceramic fuse body.
- Body width approximately 71.9 mm.
- Clip mounting in compatible NH fuse bases.
Reliable Protection for Industrial Distribution Systems
The Mersen NH3GG50V800 incorporates a full-range gG operating characteristic, allowing it to protect circuits against sustained overloads and severe short-circuit faults. This makes it suitable as a standalone protective device for cables, conductors and general-purpose electrical equipment in demanding industrial applications.
Its current-limiting performance helps minimise thermal and electrodynamic stress throughout the electrical installation, improving protection for switchgear, busbars, wiring and connected equipment while enhancing overall system reliability.
Typical Applications
- Industrial switchboards.
- High-current power distribution systems.
- Cable and feeder protection.
- Commercial electrical installations.
- Industrial machinery.
- Infrastructure and utility installations.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 800 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | NH gG 500 V AC Fuse Links | |
| Model | NH3GG50V800 | |
| Item number | V228523 | |
| EAN / UPC | 8430399026688 | |
| Product type | DIN NH low-voltage fuse link | |
| Fuse characteristic | gG | |
| Fuse size | NH3 | |
| Rated current | 800 A | |
| Rated AC voltage | 500 V AC | |
| Rated DC voltage | 250 V DC | |
| Breaking capacity | 120 kA AC | |
| Indicator | Double indicator | |
| Gripping lugs | Live gripping lugs | |
| Body width | 71.9 mm | |
| Weight | Approx. 1.05 kg | |
| Power dissipation | 53.2 W | |
| Mounting | NH fuse base | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GG50V800 used for?
This fuse link protects low-voltage cables, conductors and electrical equipment against overloads and short-circuit faults.
What is the rated current of the NH3GG50V800?
The fuse has a rated current of 800 A.
What voltage is this fuse rated for?
The NH3GG50V800 is rated for operation on systems up to 500 V AC and 250 V DC.
What does the gG fuse characteristic provide?
The gG characteristic provides full-range protection against overloads and short circuits, making it suitable for protecting cables and general electrical equipment.
What is the benefit of the double indicator?
The integrated double indicator provides a clear visual indication when the fuse has operated, simplifying maintenance and reducing downtime.
Trusted for Industrial Circuit Protection
Mersen NH gG fuse links are trusted worldwide by electrical engineers, panel builders and industrial maintenance professionals for dependable low-voltage circuit protection, high fault interruption capability and long-term reliability.
