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MERSEN FUSE NH3 63KVA 400V GTR TI NH32GTR63KVA-8
Mersen NH32GTR63KVA-8 NH3 gTr transformer fuse-link rated at 63 A, 400 V AC and 63 kVA, featuring live gripping lugs, a top indicator and a 100 kA breaking capacity.
£29.37
Why Choose the Mersen NH32GTR63KVA-8 Transformer Fuse-Link?
The Mersen NH32GTR63KVA-8 is a high-performance NH3 gTr fuse-link designed specifically for the protection of low-voltage transformers. Manufactured to the DIN NH standard, it combines a transformer-matched time-current characteristic with a high breaking capacity to provide dependable protection against overloads and short-circuit faults.
This fuse-link is rated for a 63 kVA transformer, with a nominal current rating of 63 A and an operating voltage of up to 400 V AC. Its gTr operating class is specially adapted to transformer load characteristics, helping accommodate normal energisation currents while providing selective fault protection alongside downstream gG fuse-links.
The NH32GTR63KVA-8 features live gripping lugs, silver-plated copper blade terminals and a clearly visible top-mounted indicator. Its robust ceramic body and 100 kA AC breaking capacity make it suitable for demanding industrial and commercial power distribution installations where reliable transformer protection is essential.
Key Advantages
- Specially designed gTr fuse characteristic for transformer protection.
- Suitable for transformers rated at approximately 63 kVA.
- 63 A current rating for coordinated low-voltage protection.
- 400 V AC rated voltage for industrial distribution systems.
- High 100 kA breaking capacity for dependable short-circuit protection.
- Top-mounted indicator provides straightforward visual fuse status identification.
- Robust ceramic construction supports reliable operation in demanding installations.
Key Features
- Mersen NH gTr transformer fuse-link series.
- NH3 fuse size manufactured to the DIN NH format.
- 63 kVA transformer rating.
- 63 A rated current.
- 400 V AC rated operational voltage.
- gTr operating characteristic optimised for transformer protection.
- 100 kA maximum AC breaking capacity.
- Integrated top-mounted fuse indicator.
- Live gripping lugs for use with a suitable LV HRC fuse puller.
- Silver-plated copper plain-blade terminals.
- Durable ceramic insulating body.
Reliable Protection for Low-Voltage Transformers
Transformer fuse-links must tolerate normal transformer energisation currents while responding reliably to sustained overloads and short-circuit faults. The gTr time-current characteristic of the Mersen NH32GTR63KVA-8 is specially matched to transformer behaviour, helping to prevent unnecessary operation during normal start-up conditions.
The fuse-link also supports effective selectivity with downstream gG fuse-links, helping isolate faults at the appropriate point in the electrical installation. Its high breaking capacity and robust NH construction make it a dependable protection component for transformer-fed industrial and commercial distribution systems.
Typical Applications
- Protection of low-voltage transformers rated around 63 kVA.
- Industrial power distribution boards.
- Commercial electrical distribution systems.
- Transformer secondary-side protection.
- Machinery and production facility power supplies.
- Electrical switchboards and NH fuse assemblies.
- Infrastructure and building services installations.
Technical Specifications
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| Voltage | 400 V | |
|---|---|---|
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gTr | |
| Current | 63 A | |
| Manufacturer | Mersen | |
| Series | NH Fuse-Links gTr 400 V AC | |
| Catalogue number | NH32GTR63KVA-8 | |
| Item number | L1030111A | |
| Product type | Transformer protection fuse-link | |
| Operating class | gTr | |
| Transformer rating | 63 kVA | |
| Rated current | 63 A | |
| Rated voltage | 400 V AC | |
| Current type | AC | |
| Fuse size | NH3 | |
| Maximum AC breaking capacity | 100 kA | |
| Indicator system | Yes | |
| Indicator type | Top indicator | |
| Gripping lug design | Live tags | |
| Terminal type | Plain blades | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Mounting type | Clip / NH fuse-base mounting | |
| Dimensions (L × W × H) | 150 × 71 × 89 mm | |
| Product weight | approx. 1 kg | |
| EAN / UPC | 3605340534573 | |
| RoHS compliant | Yes | |
| HS Code | 85361050 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH32GTR63KVA-8 used for?
The NH32GTR63KVA-8 is a gTr fuse-link designed to protect low-voltage transformers against overloads and short-circuit faults.
What transformer size is this fuse-link designed for?
This fuse-link is designed for a transformer rated at approximately 63 kVA.
What are the voltage and current ratings?
The Mersen NH32GTR63KVA-8 is rated at 400 V AC with a nominal current rating of 63 A.
What does the gTr fuse classification mean?
The gTr classification identifies a full-range fuse-link with a time-current characteristic specifically adapted for transformer protection and coordinated selectivity with downstream gG fuse-links.
Does this fuse-link include an indicator?
Yes. The fuse-link incorporates a top-mounted indicator that provides a visual indication when the fuse has operated.
Trusted Transformer Protection from Mersen
Mersen NH gTr fuse-links are widely specified by electrical engineers, panel builders and industrial operators for reliable transformer protection, high fault interruption performance and dependable operation in low-voltage power distribution systems.
