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MERSEN FUSE NH2 200KVA 400V GTR TI NH22GTR200KVA-8
Mersen NH22GTR200KVA-8 NH2 gTr fuse-link rated at 289 A and 400 V AC, designed for protection of low-voltage transformers rated at approximately 200 kVA.
£19.23
Why Choose the Mersen NH22GTR200KVA-8 Transformer Fuse-Link?
The Mersen NH22GTR200KVA-8 is a specialised NH size 2 gTr fuse-link designed to protect low-voltage transformers against overload and short-circuit currents. Rated for a 200 kVA transformer, with a nominal current of 289 A and an operating voltage of 400 V AC, it provides coordinated protection for demanding industrial power distribution systems.
Its gTr operating characteristic is specifically matched to the thermal behaviour and permissible overload capability of transformers. This enables the fuse-link to withstand normal transformer inrush and temporary loading conditions while operating when sustained or dangerous overcurrents threaten the transformer and connected equipment.
The NH22GTR200KVA-8 features a durable ceramic body, standard NH blade contacts, live gripping lugs and a convenient top-mounted indicator. Its DIN NH2 construction allows installation in compatible NH fuse bases, fuse-switch disconnectors and distribution assemblies used in industrial and commercial transformer installations.
Key Advantages
- Specially designed for low-voltage transformer protection.
- Matched to transformers rated at approximately 200 kVA.
- 289 A rated current for correctly coordinated transformer circuits.
- 400 V AC operating voltage for industrial distribution networks.
- gTr characteristic accommodates normal transformer loading and inrush conditions.
- Supports improved selectivity with downstream gG fuse protection.
- Top indicator allows convenient identification of fuse operation.
Key Features
- Mersen NH gTr transformer fuse-link series.
- NH2 fuse size.
- 200 kVA transformer rating.
- 289 A rated current.
- 400 V AC rated operating voltage.
- gTr transformer-protection characteristic.
- Top-mounted fuse operation indicator.
- Live, non-isolated gripping lugs.
- Standard DIN NH blade contacts.
- Robust ceramic insulating body.
- 50 mm body width.
Reliable Protection for Low-Voltage Transformers
The Mersen NH22GTR200KVA-8 is engineered around the operating characteristics of low-voltage transformers. Its time-current response permits temporary transformer loading and magnetising inrush while providing protection against sustained overloads and high fault currents.
Mersen gTr fuse-links can tolerate elevated current for controlled periods, helping avoid unnecessary operation during permissible transformer loading. Their transformer-specific characteristic also supports effective selectivity with downstream gG fuse-links, helping isolate faults while maintaining continuity elsewhere in the distribution system.
Typical Applications
- Low-voltage transformer protection.
- Industrial power distribution systems.
- Commercial building distribution boards.
- Transformer secondary circuits.
- Factory and process plant switchgear.
- NH fuse-switch disconnectors and distribution assemblies.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH2 | |
| Fuse Class | gTr | |
| Current | 289 A | |
| Manufacturer | Mersen | |
| Series | NH gTr 400 V AC Transformer Fuse-Links | |
| Model | NH22GTR200KVA-8 | |
| Manufacturer part number | F1028703 | |
| Product type | NH transformer fuse-link | |
| Fuse size | NH2 | |
| Utilisation category | gTr | |
| Transformer rating | 200 kVA | |
| Rated current | 289 A | |
| Rated operating voltage | 400 V AC | |
| Current type | AC | |
| Indication system | Top indicator | |
| Gripping lug design | Live / non-isolated gripping lugs | |
| Contact type | DIN NH blade contacts | |
| Body material | Ceramic | |
| Body width | 50 mm | |
| Mounting method | Compatible NH2 fuse base or fuse-switch disconnector | |
| EAN / UPC | 3605340545142 | |
| RoHS compliance | Yes | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH22GTR200KVA-8 used for?
The Mersen NH22GTR200KVA-8 is designed to provide overload and short-circuit protection for suitably coordinated low-voltage transformers rated at approximately 200 kVA.
What are the current and voltage ratings?
The fuse-link has a rated current of 289 A and a rated operating voltage of 400 V AC.
What does the gTr characteristic mean?
The gTr characteristic is specifically designed for transformer protection, with a time-current response adapted to transformer loading, inrush current and thermal behaviour.
What fuse size is the NH22GTR200KVA-8?
This product is an NH2 size fuse-link with a ceramic body width of approximately 50 mm.
Which fuse holder is compatible?
The NH22GTR200KVA-8 is designed for installation in compatible NH2 fuse bases and fuse-switch disconnectors. Selection and installation should be completed by a qualified electrical professional.
Trusted Transformer Protection
Mersen gTr fuse-links are widely selected by electrical engineers, panel builders and power distribution specialists for dependable and coordinated protection of low-voltage transformers.
