Why Choose the Mersen NH32GTR100KVA Transformer Protection Fuse?
The Mersen NH32GTR100KVA is a specialist NH gTr low voltage fuse link developed specifically for protecting distribution transformers against overloads and short-circuit faults. Part of the trusted Mersen NH gTr fuse-link series, it features a transformer-specific time-current characteristic that accommodates magnetising inrush currents while providing dependable fault protection.
Designed for 100 kVA distribution transformers, this fuse link has a 144 A rated current and operates on 400 V AC systems. Its carefully engineered gTr characteristic provides excellent selectivity with downstream protective devices while helping maximise transformer service life.
The NH32GTR100KVA features an NH Size 3 body with a centre-mounted operating indicator and live gripping lugs, enabling rapid visual inspection and safer replacement using a suitable NH fuse puller. Its robust DIN NH construction makes it ideal for industrial, commercial and utility transformer installations.
Key Advantages
- Purpose-designed gTr fuse link for transformer protection.
- Suitable for 100 kVA distribution transformers.
- 144 A rated current.
- 400 V AC rated operating voltage.
- Transformer-specific operating curve accommodates energisation inrush current.
- Centre indicator enables quick identification of an operated fuse.
Key Features
- Mersen NH gTr transformer fuse-link series.
- NH Size 3.
- 144 A rated current.
- 400 V AC rated voltage.
- 100 kVA transformer nominal capacity.
- gTr operating characteristic.
- 100 kA AC breaking capacity.
- Centre-mounted visual operating indicator.
- Live gripping lugs.
- DIN NH blade-contact construction.
Unlike standard general-purpose fuse links, the gTr operating characteristic is specifically designed for transformer applications. It permits the high inrush current generated during transformer energisation while providing reliable protection against overloads and severe short-circuit faults, reducing the risk of unnecessary fuse operation.
The NH32GTR100KVA is suitable for installation in compatible NH3 fuse bases within industrial plants, commercial buildings and utility distribution systems. As with all NH fuse systems, installation and replacement should only be carried out by qualified electrical professionals using an approved NH fuse puller.
Typical Applications
- 100 kVA distribution transformer protection.
- Industrial electrical distribution systems.
- Commercial building power distribution.
- Transformer feeder circuits.
- Industrial switchboards and distribution panels.
- Utility and infrastructure installations.
