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MERSEN FUSE NH 3C 250A 400V GG SGL NH3GG40V250-1
Mersen NH3GG40V250-1 NH3 gG fuse link rated at 250 A and 400 V AC with double indication and isolated gripping lugs for industrial cable and equipment protection.
£26.03
Why Choose the Mersen NH3GG40V250-1 NH Fuse Link?
The Mersen NH3GG40V250-1 is a premium NH3 gG fuse link engineered to provide dependable full-range protection for industrial power distribution systems, switchgear, cables and electrical equipment. Manufactured to DIN NH standards, this low-voltage fuse delivers reliable overload and short-circuit protection while offering excellent current-limiting performance for demanding industrial environments.
Featuring a gG operating characteristic, the NH3GG40V250-1 protects electrical circuits across the complete fault current range, from sustained overloads through to high-energy short-circuit faults. The fuse incorporates a double indication system together with isolated gripping lugs, enabling rapid identification of an operated fuse while improving handling safety during replacement by qualified personnel.
With a rated current of 250 A and a rated voltage of 400 V AC, this NH size 3 fuse link is ideally suited for industrial switchboards, distribution panels and machinery supply circuits. Its ceramic body and blade contact construction ensure dependable electrical performance and long service life in demanding industrial installations.
Key Advantages
- Full-range gG protection against overloads and short circuits.
- 250 A rated current for industrial power distribution systems.
- 400 V AC rated voltage for low-voltage installations.
- 100 kA breaking capacity provides dependable fault interruption.
- Double indication system enables rapid identification of an operated fuse.
- Isolated gripping lugs improve installation and replacement safety.
Key Features
- Mersen NH gG fuse-link series.
- 250 A current rating.
- 400 V AC rated voltage.
- NH3 DIN fuse size.
- gG full-range operating characteristic.
- Double visual indication system.
- Isolated gripping lugs.
- Ceramic body with blade contacts.
Reliable Protection for Industrial Electrical Systems
The Mersen NH3GG40V250-1 rapidly interrupts overload and short-circuit currents before they can damage cables, switchgear and connected electrical equipment. Its current-limiting characteristics help reduce thermal stress and electrodynamic forces, improving equipment reliability while reducing maintenance costs and unplanned downtime.
As a gG full-range fuse, this fuse link provides comprehensive protection against both overload and short-circuit currents. It is widely used in industrial distribution systems where dependable low-voltage circuit protection is essential. Installation and replacement should always be carried out by qualified personnel using compatible NH fuse bases and approved fuse pullers.
Typical Applications
- Industrial power distribution systems.
- Electrical switchboards.
- Distribution panels and control cabinets.
- Cable and conductor protection.
- Industrial machinery.
- Commercial and manufacturing electrical installations.
Technical Specifications
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| Fuse Indication | Dual indicator | |
|---|---|---|
| Current | 250 A | |
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | NH Fuse Links gG 400 VAC | |
| Model | NH3GG40V250-1 | |
| Item number | H223751 | |
| Catalogue number | NH3GG40V250-1 | |
| Product type | DIN NH fuse link | |
| Operating characteristic | gG | |
| Rated current | 250 A | |
| Rated voltage | 400 V AC | |
| Breaking capacity | 100 kA | |
| Fuse size | NH3 | |
| Power dissipation at rated current | 15.4 W | |
| Body width | 52 mm | |
| Weight | Approx. 0.65 kg | |
| Indication system | Double indicator | |
| Gripping lugs | Isolated | |
| EAN | 8430399022031 | |
| RoHS compliant | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GG40V250-1 used for?
This fuse link protects industrial cables, conductors and electrical equipment against overloads and short-circuit faults.
What is the current rating of this fuse?
The Mersen NH3GG40V250-1 has a rated current of 250 A.
What voltage is this fuse designed for?
The fuse is designed for electrical systems operating up to 400 V AC.
What does the gG characteristic mean?
The gG operating characteristic provides full-range protection against both overload currents and short-circuit currents for general-purpose cable and equipment protection.
Why does this fuse include isolated gripping lugs?
The isolated gripping lugs improve handling safety when qualified personnel install or replace the fuse using suitable NH fuse pullers.
Trusted Protection for Industrial Electrical Systems
Mersen NH fuse links are trusted worldwide by electrical engineers, OEMs and panel builders to provide reliable protection for industrial power distribution equipment, switchgear and low-voltage electrical installations.
