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MERSEN FUSE NH4AC 200KVA 400V GTR TI NH4AGTR200KVA-8
Mersen NH4AGTR200KVA-8 DIN NH4a gTr transformer protection fuse-link rated at 289 A and 400 V AC for 200 kVA transformers with top indicator and live gripping lugs.
£183.79
Why Choose the Mersen NH4AGTR200KVA-8 Transformer Fuse-Link?
The Mersen NH4AGTR200KVA-8 is a heavy-duty DIN NH gTr transformer protection fuse-link developed to provide reliable protection for low voltage distribution transformers against overload and short-circuit faults. Manufactured by Mersen, this NH4a fuse-link is specifically engineered to match the operating characteristics of transformers, delivering dependable protection whilst accommodating normal transformer energisation currents.
Part of the proven Mersen NH gTr 400 V AC fuse-link series, the NH4AGTR200KVA-8 is designed for transformers with a nominal capacity of 200 kVA. It features a 289 A rated current, 400 V AC operating voltage, top indicator and live gripping lugs, allowing safe installation and efficient maintenance in industrial power distribution systems.
Its NH4a construction offers excellent fault interruption capability and dependable long-term performance, making it ideal for transformer panels, substations, industrial switchboards and commercial electrical installations requiring dedicated transformer protection.
Key Advantages
- Purpose-designed gTr fuse-link for transformer protection.
- Suitable for 200 kVA low voltage transformers.
- 289 A rated current for transformer applications.
- 400 V AC operating voltage.
- Top indicator enables rapid identification of an operated fuse.
- Live gripping lugs support safe replacement using an approved NH fuse puller.
- High breaking capacity for demanding industrial electrical systems.
- Designed in accordance with IEC NH fuse standards.
Key Features
- Mersen NH gTr transformer protection fuse-link series.
- Catalogue number: NH4AGTR200KVA-8.
- Mersen item number: H1028728.
- Fuse size: NH4a.
- Transformer capacity: 200 kVA.
- Rated current: 289 A.
- Rated voltage: 400 V AC.
- Utilisation category: gTr.
- Top operated-fuse indicator.
- Live gripping lugs.
- Blade contact construction.
- Body width approximately 72.9 mm.
Reliable Protection for Distribution Transformers
The Mersen NH4AGTR200KVA-8 is engineered specifically for transformer protection. Its gTr operating characteristic accommodates transformer magnetising inrush currents whilst providing dependable protection against overloads and high prospective short-circuit faults, helping maximise transformer service life and system reliability.
The fuse-link should be installed in a compatible NH4a fuse base and handled only by qualified electrical personnel using an approved NH fuse replacement device and suitable personal protective equipment.
Typical Applications
- 200 kVA low voltage distribution transformers.
- Industrial transformer panels.
- Commercial power distribution systems.
- Electrical substations.
- Industrial switchboards.
- Manufacturing and process facilities.
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 | 289 A | |
| Manufacturer | Mersen | |
| Series | NH Fuse-Links gTr 400 VAC | |
| Model | NH4AGTR200KVA-8 | |
| Item number | H1028728 | |
| Product type | DIN NH transformer protection fuse-link | |
| Fuse size | NH4a | |
| Utilisation category | gTr | |
| Transformer nominal capacity | 200 kVA | |
| Rated current | 289 A | |
| Rated voltage | 400 V AC | |
| Current type | AC | |
| Indicator | Top indicator | |
| Gripping lugs | Live tags | |
| Body width | 72.9 mm | |
| EAN | 3605340534962 | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH4AGTR200KVA-8 used for?
The NH4AGTR200KVA-8 is designed to protect 200 kVA low voltage distribution transformers against overload and short-circuit faults.
What transformer size is this fuse designed for?
This fuse-link is designed for transformers with a nominal rating of 200 kVA.
What is the rated current?
The NH4AGTR200KVA-8 has a rated current of 289 A.
What does the gTr classification mean?
The gTr utilisation category identifies fuse-links specifically developed for transformer protection, providing operating characteristics suited to transformer inrush currents whilst protecting against overloads and short circuits.
Does this fuse include an indicator?
Yes. The NH4AGTR200KVA-8 incorporates a top indicator that provides clear visual identification when the fuse-link has operated.
Trusted by Electrical Professionals Worldwide
Mersen NH gTr transformer fuse-links are trusted by transformer manufacturers, panel builders, utilities and industrial maintenance engineers for dependable protection of low voltage distribution transformers.
