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MERSEN FUSE NH2 250KVA 400V GTR SGL MI NH22GTR250KVA-1
Mersen NH22GTR250KVA-1 DIN NH2 gTr transformer protection fuse-link rated at 361 A and 400 V AC for 250 kVA transformers, with a centre indicator and isolated gripping lugs.
£38.60
Why Choose the Mersen NH22GTR250KVA-1 Transformer Protection Fuse-Link?
The Mersen NH22GTR250KVA-1 is a high-performance DIN NH gTr fuse-link specifically designed to protect low voltage distribution transformers against overloads and short-circuit faults. As part of the established Mersen NH gTr 400 V AC fuse-link range, it provides a time-current characteristic adapted to transformer operating behaviour for dependable protection and improved service continuity.
This NH2 fuse-link combines current-limiting performance with a centre-mounted indicator and isolated gripping lugs. The indicator provides clear visual confirmation when the fuse has operated, while the insulated gripping points support safer handling and replacement by appropriately qualified electrical personnel.
Rated for the protection of 250 kVA transformers, the NH22GTR250KVA-1 has a nominal current rating of 361 A and an operating voltage rating of 400 V AC. Its transformer-specific gTr characteristic allows normal loading and temporary energisation conditions while precisely interrupting sustained overloads and electrical faults.
Key Advantages
- Purpose-designed gTr fuse-link for transformer protection.
- Suitable for protecting 250 kVA distribution transformers.
- 361 A rated current for high-capacity transformer circuits.
- 400 V AC rated operating voltage.
- Transformer-adapted characteristic helps reduce unnecessary interruptions.
- Isolated gripping lugs support safer handling and replacement.
Key Features
- Mersen NH gTr transformer protection series.
- Catalogue number: NH22GTR250KVA-1.
- 250 kVA transformer rating.
- 361 A rated current.
- 400 V AC IEC rated voltage.
- DIN NH Size 2 construction.
- gTr transformer protection characteristic.
- Centre-mounted operating indicator.
- Isolated gripping lugs.
- High current-limiting performance.
Reliable Protection for Distribution Transformers
The Mersen NH22GTR250KVA-1 uses a gTr operating characteristic specifically developed for transformer protection. This characteristic is matched to transformer loading behaviour, allowing temporary operating conditions while providing precise interruption during sustained overloads and short-circuit faults.
Its current-limiting performance helps reduce the thermal and mechanical energy released during electrical faults, protecting transformers, conductors, switchgear and connected distribution equipment. The fuse-link also supports effective selectivity with suitably coordinated gG fuse-links elsewhere in the installation.
Typical Applications
- 250 kVA low voltage distribution transformers.
- Industrial transformer feeder circuits.
- Commercial and industrial substations.
- Low voltage switchboards.
- Power distribution panels.
- Transformer protection assemblies and fuse-switch equipment.
Technical Specifications
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| Voltage | 400 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH2 | |
| Fuse Class | gTr | |
| Current | 361 A | |
| Manufacturer | Mersen | |
| Series | NH Fuse-Links gTr 400 V AC | |
| Model | NH22GTR250KVA-1 | |
| Manufacturer part number | R1030530 | |
| Product type | DIN NH transformer protection fuse-link | |
| Fuse size | NH2 | |
| Transformer capacity | 250 kVA | |
| Rated current | 361 A | |
| Rated operating voltage | 400 V AC | |
| Operating characteristic | gTr | |
| Current type | AC | |
| Indicator position | Centre indicator | |
| Gripping lug type | Isolated gripping lugs | |
| Body width | 53.1 mm | |
| Mounting system | Compatible DIN NH fuse base | |
| EAN | 3605340545715 | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH22GTR250KVA-1 used for?
It is designed to protect 250 kVA distribution transformers against sustained overloads and short-circuit faults.
What is the rated current of this fuse-link?
The NH22GTR250KVA-1 has a rated current of 361 A.
What voltage is the NH22GTR250KVA-1 rated for?
This transformer protection fuse-link is rated for operation at 400 V AC.
What does the gTr characteristic mean?
The gTr characteristic is specifically developed for transformer protection, providing an operating curve matched to transformer loading, overload and short-circuit behaviour.
What are isolated gripping lugs?
Isolated gripping lugs incorporate insulated handling points that support safer fuse-link installation and replacement by qualified electrical personnel.
Trusted by Electrical Professionals Worldwide
Mersen NH gTr fuse-links are trusted by utilities, panel builders and electrical engineers for dependable transformer protection, high current limitation and reliable performance in industrial power distribution systems.
