Why Choose the Mersen NH3GTR75KVA-1 Transformer Fuse-Link?
The Mersen NH3GTR75KVA-1 is a specialised DIN NH gTr transformer fuse-link designed to provide dependable short-circuit protection for low voltage distribution transformers. Manufactured by Mersen, this NH3 size fuse-link features isolated gripping lugs, making installation and replacement safer while delivering reliable transformer protection in industrial and commercial power distribution systems.
Part of the proven Mersen NH gTr 400 V AC fuse-link series, the NH3GTR75KVA-1 incorporates a centre-mounted indicator for rapid visual identification of an operated fuse-link. Its specialised gTr time-current characteristic is designed to tolerate transformer magnetising inrush currents while providing rapid interruption of damaging short-circuit faults.
Designed specifically for protecting 75 kVA transformers, this fuse-link has a 108 A rated current and is intended for use on 400 V AC systems. Its current-limiting construction helps minimise thermal and mechanical stress on transformers, switchgear and associated equipment during electrical fault conditions.
Key Advantages
- Purpose-designed for low voltage transformer protection.
- Suitable for 75 kVA transformers.
- 108 A rated current for 400 V AC transformer circuits.
- gTr characteristic accommodates transformer energisation currents.
- High current-limiting performance reduces fault energy.
- Centre indicator enables rapid identification of an operated fuse-link.
- Isolated gripping lugs improve installation safety.
Key Features
- Mersen NH gTr transformer fuse-link series.
- 75 kVA transformer rating.
- 108 A rated current.
- 400 V AC rated operating voltage.
- DIN NH3 size construction.
- gTr transformer protection characteristic.
- Centre-mounted fuse status indicator.
- Isolated gripping lugs.
- Current-limiting fuse element.
- Durable ceramic insulating body.
The Mersen NH3GTR75KVA-1 has been specifically engineered for transformer protection applications. Its gTr operating characteristic allows the fuse-link to withstand the temporary magnetising inrush current generated when a transformer is energised while still providing dependable short-circuit protection when fault conditions occur.
Its current-limiting design helps reduce the energy released during electrical faults, protecting transformer windings, cables and associated switchgear. This contributes to improved system reliability, reduced maintenance requirements and extended transformer service life.
Typical Applications
- 75 kVA low voltage distribution transformers.
- Industrial transformer protection.
- Commercial power distribution systems.
- Transformer feeder circuits.
- Low voltage switchboards.
- OEM electrical distribution equipment.
