Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE NH 1 125A 500V GG SGL NH12GG50V125-1
Mersen NH12GG50V125-1 DIN NH1 gG fuse link rated at 125 A, 500 V AC with isolated gripping lugs and front and top indicator for industrial circuit protection.
£10.82
Why Choose the Mersen NH12GG50V125-1 NH Fuse Link?
The Mersen NH12GG50V125-1 is a premium DIN NH gG low voltage fuse link engineered to provide dependable protection for industrial power distribution systems, switchgear and electrical equipment. Manufactured by Mersen, this fuse link delivers full-range overcurrent and short-circuit protection, helping to safeguard cables, feeders and electrical installations operating under demanding conditions.
Designed with a 125 A rated current, 500 V AC operating voltage and a Size NH1 body, the NH12GG50V125-1 complies with IEC and DIN standards for low voltage fuse protection. Its front and top indicator system with isolated gripping lugs allows maintenance engineers to quickly identify an operated fuse while improving replacement safety.
The NH12GG50V125-1 is ideally suited for industrial switchboards, distribution panels, machine control systems and commercial electrical installations where reliable circuit protection and high breaking capacity are essential.
Key Advantages
- Industrial DIN NH gG fuse link for comprehensive circuit protection.
- 125 A current rating suitable for power distribution applications.
- 500 V AC rated voltage for industrial electrical systems.
- Full-range gG protection against overloads and short circuits.
- Front and top indicator enables rapid fuse status identification.
- Isolated gripping lugs improve maintenance safety.
Key Features
- Mersen NH gG fuse link series.
- Catalogue number: NH12GG50V125-1.
- NH1 fuse size.
- 125 A rated current.
- 500 V AC rated voltage.
- 250 V DC rated voltage.
- 120 kA breaking capacity.
- Front and top blown fuse indicator.
- Isolated gripping lugs.
- Compliant with IEC and DIN NH standards.
Reliable Protection for Industrial Power Systems
The gG utilisation category provides complete protection against overloads and short circuits, making the NH12GG50V125-1 suitable for protecting cables, conductors, switchgear and general electrical equipment. Its high interrupting capacity helps minimise equipment damage and improve electrical system reliability.
Mersen NH fuse links are widely specified by panel builders, electrical contractors and industrial maintenance engineers thanks to their proven reliability, international approvals and consistent performance in demanding environments.
Typical Applications
- Industrial power distribution systems.
- Electrical switchboards.
- Distribution panels.
- Machine control panels.
- Cable and feeder protection.
- Commercial and industrial electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Visual indicator | |
|---|---|---|
| Current | 125 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Fuse Class | gG | |
| Manufacturer | Mersen | |
| Series | NH gG Fuse Links | |
| Model | NH12GG50V125-1 | |
| Product type | DIN NH fuse link | |
| Fuse size | NH1 | |
| Utilisation category | gG | |
| Rated current | 125 A | |
| Rated AC voltage | 500 V AC | |
| Rated DC voltage | 250 V DC | |
| Breaking capacity | 120 kA | |
| Indicator | Front and top indicator | |
| Gripping lugs | Isolated | |
| Dimensions (L × W × H) | Approx. 135 × 39.5 × 52.5 mm | |
| Standards | IEC 60269, DIN 43620 | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen NH12GG50V125-1 used for?
This NH fuse link protects industrial electrical circuits, cables and equipment from overloads and short circuits.
What is the current rating of this fuse?
The NH12GG50V125-1 has a rated current of 125 A.
What supply voltage is this fuse designed for?
This fuse is rated for operation on systems up to 500 V AC and 250 V DC.
What does the gG classification mean?
The gG utilisation category provides full-range protection against both overload and short-circuit faults for general-purpose electrical circuits.
What is the benefit of the front and top indicator?
The integrated indicator makes it easy to identify when the fuse has operated, helping reduce maintenance time and improve servicing efficiency.
Trusted for Industrial Circuit Protection
Mersen NH fuse links are trusted worldwide by electrical engineers, OEM manufacturers and panel builders to deliver reliable protection for industrial power distribution and electrical infrastructure.
