Mersen NH32GTR315KVA-1 DIN NH size 3 gTr transformer fuse-link rated for 315 kVA transformers, 455 A and 400 V AC with centre indicator and isolated gripping lugs.
£69.74
The Mersen NH32GTR315KVA-1 is a DIN NH size 3 gTr fuse-link specifically designed to protect 315 kVA low-voltage distribution transformers. Designed for operation on 400 V AC systems, it delivers dependable transformer protection while withstanding the high magnetising inrush currents that occur during transformer energisation.
The specialised gTr operating characteristic is engineered to match the electrical behaviour of distribution transformers. This provides reliable protection against overloads and short circuits while reducing unnecessary fuse operation during normal transformer energisation. It also offers excellent selectivity with downstream gG fuse-links, helping to maintain system continuity.
Manufactured to the DIN NH standard, the NH32GTR315KVA-1 features a durable ceramic body, blade contacts, isolated gripping lugs and a centre-mounted blown fuse indicator. It is intended for installation in compatible NH fuse bases and transformer switch-fuse assemblies by qualified electrical professionals.
Distribution transformers generate high temporary magnetising currents when energised. The Mersen gTr operating characteristic is specifically developed to withstand these normal inrush currents while providing rapid interruption of damaging overload and short-circuit faults.
The NH32GTR315KVA-1 is designed for installation in compatible NH fuse bases and transformer switch-fuse assemblies. Installation and replacement should only be carried out by suitably qualified electrical professionals using approved NH fuse handling equipment.
| Voltage | 400 V |
|---|---|
| Manufacturer | Mersen |
| Series | NH gTr 400 V Transformer Fuse-Links |
| Model | NH32GTR315KVA-1 |
| Item number | D1030541A |
| Product type | NH transformer protection fuse-link |
| Fuse utilisation category | gTr |
| Fuse size | NH3 |
| Transformer rating | 315 kVA |
| Rated current | 455 A |
| Rated voltage | 400 V AC |
| Voltage type | AC |
| Indicator | Centre indicator |
| Gripping lugs | Isolated gripping lugs |
| Body width | 72.9 mm |
| Power dissipation | 21 W |
| Weight | Approx. 1 kg |
| EAN | 3605340535785 |
| Compliance | RoHS compliant |
| HS Code | 85361090 |
| Country of Manufacture | Hungary |
It is specifically designed to protect 315 kVA low-voltage distribution transformers against overloads and short-circuit faults while accommodating transformer energisation currents.
The NH32GTR315KVA-1 is designed for transformers with a nominal rating of 315 kVA.
The fuse-link has a rated current of 455 A.
The gTr characteristic is specifically optimised for transformer protection, allowing normal magnetising inrush currents while providing dependable fault protection and excellent selectivity.
Yes. The NH32GTR315KVA-1 features a centre-mounted indicator to provide clear visual confirmation when the fuse has operated.
Mersen NH gTr transformer fuse-links are trusted by electrical engineers, switchgear manufacturers and utility providers for dependable transformer protection, high current-limiting performance and excellent selectivity in low-voltage power distribution systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...