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MERSEN FUSE NH4AC 100KVA 400V GTR TI NH4AGTR100KVA-8
Mersen NH4AGTR100KVA-8 DIN NH4a gTr transformer protection fuse-link rated 144 A and 400 V AC for 100 kVA transformers with top indicator and live gripping lugs.
£183.79
Why Choose the Mersen NH4AGTR100KVA-8 Transformer Protection Fuse-Link?
The Mersen NH4AGTR100KVA-8 is a premium DIN NH gTr low voltage transformer protection fuse-link engineered to provide reliable overload and short-circuit protection for low voltage distribution transformers. Specifically developed for transformer applications, its gTr operating characteristic is optimised to withstand transformer energisation currents while providing fast disconnection under fault conditions.
Part of the trusted Mersen NH gTr 400 V AC fuse range, this NH4a fuse-link is designed for protecting transformers with a nominal rating of 100 kVA. Its ceramic body, silver-plated blade contacts, top-mounted blown-fuse indicator and live gripping lugs ensure dependable operation and straightforward maintenance in industrial and commercial power distribution systems.
With a 144 A rated current, 400 V AC operating voltage and a 100 kA breaking capacity, the NH4AGTR100KVA-8 offers exceptional protection for transformers, switchgear and associated distribution equipment while helping minimise equipment damage during fault conditions.
Key Advantages
- Purpose-designed gTr fuse characteristic for transformer protection.
- Suitable for 100 kVA distribution transformers.
- 144 A rated current for reliable transformer protection.
- 400 V AC rated voltage.
- 100 kA AC breaking capacity for high fault interruption performance.
- Top-mounted blown-fuse indicator for quick identification.
- Live gripping lugs enable safe fuse handling.
- Excellent current-limiting characteristics reduce equipment stress during faults.
Key Features
- Mersen NH gTr transformer protection fuse-link series.
- Catalogue number: NH4AGTR100KVA-8.
- NH4a fuse size.
- 100 kVA transformer rating.
- 144 A rated current.
- 400 V AC operating voltage.
- Top indicator for blown fuse identification.
- Live gripping lugs.
- Ceramic body with silver-plated blade contacts.
- High current-limiting performance.
Reliable Protection for Distribution Transformers
The Mersen NH4AGTR100KVA-8 is designed specifically for transformer protection applications where conventional general-purpose fuse-links may not provide optimum coordination. The gTr characteristic allows transformer magnetising inrush currents while providing dependable protection against overload and short-circuit conditions.
Its high breaking capacity and current-limiting performance help protect transformers, switchgear and distribution equipment from damaging fault currents while maintaining reliable operation of industrial and commercial electrical systems.
Typical Applications
- 100 kVA low voltage distribution transformers.
- Industrial transformer feeder panels.
- Commercial electrical installations.
- Transformer substations.
- Industrial switchgear assemblies.
- OEM power distribution equipment.
- Manufacturing facilities.
- Infrastructure and utility electrical systems.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH4a | |
| Fuse Class | gTr | |
| Current | 144 A | |
| Manufacturer | Mersen | |
| Series | NH gTr Transformer Protection Fuse-Links | |
| Model | NH4AGTR100KVA-8 | |
| Item number | E1028725 | |
| Product type | DIN NH transformer protection fuse-link | |
| Fuse characteristic | gTr | |
| Fuse size | NH4a | |
| Transformer rating | 100 kVA | |
| Rated current | 144 A | |
| Rated voltage | 400 V AC | |
| Voltage type | AC | |
| Breaking capacity | 100 kA AC | |
| Indicator | Top indicator | |
| Gripping lugs | Live gripping lugs | |
| Body width | 72.9 mm | |
| Power dissipation | 12 W | |
| Weight | Approx. 2.2 kg | |
| EAN | 3605340534931 | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH4AGTR100KVA-8 used for?
This fuse-link is specifically designed to protect low voltage distribution transformers against overloads and short-circuit faults.
What transformer size is this fuse designed for?
The NH4AGTR100KVA-8 is intended for transformers with a nominal rating of 100 kVA.
What is the rated current?
This transformer protection fuse has a rated current of 144 A.
What does the gTr characteristic provide?
The gTr characteristic is optimised for transformer protection, allowing normal transformer energisation currents while providing reliable protection during overload and fault conditions.
What is the interrupting capacity?
The NH4AGTR100KVA-8 provides a maximum AC breaking capacity of 100 kA.
Trusted by Electrical Professionals Worldwide
Mersen NH gTr transformer fuse-links are trusted by electrical engineers, transformer manufacturers and panel builders for dependable transformer protection, high fault interruption capability and long-term reliability in industrial power distribution.
