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MERSEN FUSE NH3C 100KVA 400V GTR TI NH3GTR100KVA-8
Mersen NH3GTR100KVA-8 DIN NH Size 3 gTr transformer protection fuse-link rated at 144 A and 400 V AC for 100 kVA low-voltage transformers.
£28.00
Why Choose the Mersen NH3GTR100KVA-8 Transformer Protection Fuse-Link?
The Mersen NH3GTR100KVA-8 is a high-performance DIN NH transformer protection fuse-link designed to protect low-voltage distribution transformers against overloads and short circuits. Featuring a specialised gTr operating characteristic, this NH Size 3 fuse-link provides a time-current response adapted specifically to transformer applications.
The NH3GTR100KVA-8 combines reliable current limitation with a high breaking capacity, helping minimise damage to transformers, switchgear and connected electrical equipment during fault conditions. Its characteristic is designed to accommodate normal transformer operating behaviour while providing precise interruption of potentially damaging overload currents.
With a rated current of 144 A, a rated voltage of 400 V AC and a transformer capacity rating of 100 kVA, the NH3GTR100KVA-8 is suitable for industrial and commercial power-distribution installations. It features live gripping lugs, silver-plated copper blade contacts and a top indicator for convenient visual identification of fuse operation.
Key Advantages
- Specialised gTr fuse characteristic for transformer protection.
- 100 kVA transformer capacity rating for low-voltage distribution applications.
- 144 A rated current at 400 V AC.
- High 100 kA AC breaking capacity for dependable fault interruption.
- High current-limiting performance helps reduce fault energy.
- Top indicator allows quick visual identification of fuse operation.
- Transformer-adapted characteristic helps reduce unnecessary interruptions.
Key Features
- Mersen NH gTr transformer protection fuse-link series.
- DIN NH Size 3 construction.
- 144 A rated current.
- 400 V AC rated voltage.
- 100 kVA nominal transformer capacity.
- 100 kA maximum AC breaking capacity.
- Top-mounted fuse operation indicator.
- Live gripping lugs for use with an appropriate NH fuse puller.
- Silver-plated copper plain-blade terminals.
- Durable ceramic insulating body.
Reliable Protection for Low-Voltage Transformers
The Mersen NH3GTR100KVA-8 uses a transformer-specific gTr characteristic to provide effective protection against overload and short-circuit conditions. Its time-current response is adapted to transformer behaviour, enabling it to tolerate permissible operating currents while disconnecting sustained overloads that could damage transformer windings and insulation.
The fuse-link offers high current limitation and reliable selectivity with downstream gG fuse-links. These characteristics make it a dependable protective component for transformer-fed distribution systems where operational continuity, equipment protection and predictable fault clearance are essential.
Typical Applications
- Protection of 100 kVA low-voltage transformers.
- Industrial power-distribution switchboards.
- Commercial building electrical systems.
- Transformer feeder circuits.
- Low-voltage switchgear assemblies.
- Manufacturing and processing facilities.
- Infrastructure and utility distribution installations.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gTr | |
| Current | 144 A | |
| Manufacturer | Mersen | |
| Series | NH Fuse-Links gTr 400 V AC | |
| Model | NH3GTR100KVA-8 | |
| Manufacturer item number | M1028709A | |
| EAN | 3605340534467 | |
| Product type | DIN NH transformer protection fuse-link | |
| Operating characteristic | gTr | |
| Fuse size | NH3 | |
| Rated current | 144 A | |
| Transformer nominal capacity | 100 kVA | |
| Rated voltage | 400 V AC | |
| Maximum AC breaking capacity | 100 kA | |
| Power dissipation at rated current | 9 W | |
| Indicator | Top indicator | |
| Gripping-lug design | Live tags | |
| Terminal material | Silver-plated copper | |
| Terminal type | Plain blades | |
| Body material | Ceramic | |
| Dimensions (L × W × H) | approx. 150 × 50 × 89 mm | |
| Product weight | approx. 1 kg | |
| Standards | IEC 60269-1, IEC 60269-2 and VDE 0636 Part 201 | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GTR100KVA-8 used for?
The NH3GTR100KVA-8 is used to protect low-voltage distribution transformers against sustained overload currents and short-circuit faults.
What transformer capacity is supported by this fuse-link?
This fuse-link is specified for a nominal transformer capacity of 100 kVA in a 400 V AC application.
What is the rated current of the NH3GTR100KVA-8?
The Mersen NH3GTR100KVA-8 has a rated current of 144 A.
What does the gTr characteristic mean?
The gTr characteristic identifies a full-range fuse-link with a time-current response specifically adapted to the protection requirements of electrical transformers.
Does this fuse-link have an operation indicator?
Yes. The NH3GTR100KVA-8 includes a top indicator that provides a visible indication when the fuse-link has operated.
Trusted Transformer Protection from Mersen
Mersen gTr fuse-links provide transformer-adapted overload protection, high current limitation and dependable short-circuit interruption for demanding industrial and commercial power-distribution systems.
