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MERSEN FUSE NH3 100KVA 400V GTR SGL/1 NH32GTR100KVA-1
Mersen NH32GTR100KVA-1 NH3 gTr transformer fuse-link rated at 144 A and 400 V AC for the overload and short-circuit protection of 100 kVA transformers.
£41.39
Why Choose the Mersen NH32GTR100KVA-1 Transformer Protection Fuse?
The Mersen NH32GTR100KVA-1 is a specialist DIN NH gTr transformer fuse-link designed to protect low-voltage transformers against overloads and short-circuit faults. Rated for a 100 kVA transformer, this industrial fuse combines a 144 A rated current with a 400 V AC voltage rating for dependable protection in commercial and industrial power distribution systems.
The fuse features a gTr time-current characteristic specifically adapted to transformer operating conditions. It can accommodate the temporary magnetising inrush current produced when a transformer is energised while still providing effective disconnection when a sustained overload or short circuit occurs.
Manufactured in the NH3 blade-contact format, the Mersen NH32GTR100KVA-1 is suitable for installation in compatible NH fuse bases within transformer feeders, switchboards and low-voltage distribution assemblies. Its robust construction and current-limiting performance help protect transformers, conductors and associated switchgear from damaging fault energy.
Key Advantages
- Designed specifically for 100 kVA transformer protection.
- 144 A rated current matched to suitable transformer circuits.
- 400 V AC voltage rating for low-voltage power distribution.
- gTr operating characteristic accommodates transformer inrush current.
- Current-limiting operation helps reduce damaging short-circuit energy.
- Standard NH3 blade-contact construction for compatible NH fuse bases.
Key Features
- Mersen NH transformer fuse-link range.
- 100 kVA transformer rating.
- 144 A rated current.
- 400 V AC rated operating voltage.
- NH3 fuse size.
- gTr transformer protection characteristic.
- Industrial NH blade contacts for secure installation.
- Designed for use in compatible low-voltage NH fuse systems.
- Suitable for transformer feeder and distribution applications.
- Professional installation and replacement using suitable NH handling equipment.
Reliable Protection for Low-Voltage Transformers
Transformers can draw a substantial temporary current when first energised. A conventional fuse selected without consideration of this inrush current may operate unnecessarily. The Mersen NH32GTR100KVA-1 uses a gTr characteristic designed to tolerate normal transformer starting conditions while maintaining effective protection against sustained overloads and short circuits.
During a serious electrical fault, the fuse interrupts the circuit and limits the energy allowed to pass through to the transformer and connected equipment. This helps reduce thermal and mechanical stress on conductors, busbars and switchgear while improving the overall safety and reliability of the electrical installation.
Typical Applications
- Protection of 100 kVA low-voltage transformers.
- Transformer feeder circuits.
- Industrial power distribution switchboards.
- Commercial electrical distribution systems.
- Electrical substations and plant rooms.
- OEM transformer and switchgear assemblies.
Technical Specifications
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| 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 | NH32GTR100KVA-1 | |
| Manufacturer part number | A1030538A | |
| Product type | DIN NH transformer fuse-link | |
| Fuse size | NH3 | |
| Transformer rating | 100 kVA | |
| Rated current | 144 A | |
| Rated operating voltage | 400 V AC | |
| Current type | AC | |
| Utilisation category | gTr | |
| Contact type | NH blade contacts | |
| Mounting method | Compatible NH fuse base | |
| Protection function | Transformer overload and short-circuit protection | |
| Installation | For use by suitably qualified electrical personnel |
Frequently Asked Questions
What is the Mersen NH32GTR100KVA-1 used for?
The Mersen NH32GTR100KVA-1 is designed to protect a 100 kVA low-voltage transformer against sustained overloads and short-circuit faults.
What is the rated current of this fuse?
The NH32GTR100KVA-1 has a rated current of 144 A.
What voltage is the fuse rated for?
This transformer fuse-link is rated for use on electrical systems operating at up to 400 V AC.
What does the gTr utilisation category mean?
The gTr characteristic is specifically adapted to transformer protection, allowing normal transformer magnetising inrush current while providing effective overload and short-circuit protection.
Which fuse holder is compatible with this product?
The NH32GTR100KVA-1 is an NH3 blade-contact fuse-link designed for installation in a compatible NH3 fuse base or switch-fuse assembly.
Trusted for Transformer Circuit Protection
Mersen NH transformer fuse-links are trusted by electrical engineers, panel builders and power distribution specialists for reliable transformer protection and dependable fault interruption in demanding low-voltage installations.
