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MERSEN FUSE NH3 400KVA 400V GTR SGL MI NH32GTR400KVA-1
Mersen NH32GTR400KVA-1 DIN NH3 gTr transformer protection fuse-link rated 577 A and 400 V AC for 400 kVA transformers, featuring isolated gripping lugs, a centre indicator and 100 kA breaking capacity.
£42.25
Why Choose the Mersen NH32GTR400KVA-1 Transformer Protection Fuse-Link?
The Mersen NH32GTR400KVA-1 is a high-performance DIN NH gTr transformer protection fuse-link designed to protect low voltage distribution transformers against overloads and short-circuit faults. Its specialised time-current characteristic is adapted to transformer operating behaviour, helping provide reliable protection without unnecessary operation during normal transformer energisation.
Part of the Mersen NH gTr 400 V AC fuse-link range, this model is intended for transformers with a nominal rating of 400 kVA. The NH3 fuse-link combines a robust ceramic body, silver-plated copper blade contacts and a centre-mounted indication system for dependable service in industrial and commercial power distribution installations.
With a rated current of 577 A, a 400 V AC operating voltage and a maximum breaking capacity of 100 kA, the NH32GTR400KVA-1 provides effective current limitation and fault interruption. Its isolated gripping lugs support safer handling by qualified electrical professionals using an appropriate NH fuse replacement device.
Key Advantages
- Purpose-designed gTr operating characteristic for transformer protection.
- Suitable for 400 kVA low voltage distribution transformers.
- 577 A rated current matched to transformer applications.
- 400 V AC rated operating voltage.
- High 100 kA AC breaking capacity for reliable fault interruption.
- Isolated gripping lugs support safer fuse handling and replacement.
- Centre indicator enables quick identification of an operated fuse-link.
- Current-limiting performance helps reduce stress on transformers and switchgear.
Key Features
- Mersen NH gTr transformer protection fuse-link series.
- Catalogue number: NH32GTR400KVA-1.
- Item number: E1030542A.
- NH3 fuse size.
- 400 kVA transformer rating.
- 577 A rated current.
- 400 V AC rated voltage.
- Centre-mounted blown-fuse indicator.
- Isolated gripping lugs.
- Plain silver-plated copper blade contacts.
- Robust ceramic insulating body.
Reliable Protection for Distribution Transformers
gTr fuse-links are specifically engineered for transformer protection. Their operating characteristic accommodates normal transformer inrush currents and temporary overload conditions while responding effectively to sustained overloads and high short-circuit currents.
The Mersen NH32GTR400KVA-1 provides coordination between the transformer and downstream gG protection devices. Its high breaking capacity and current-limiting action help reduce thermal and mechanical stress on transformers, cables and associated switchgear during severe electrical faults.
Typical Applications
- 400 kVA low voltage distribution transformers.
- Industrial transformer feeder panels.
- Commercial power distribution systems.
- Low voltage substations.
- Industrial switchgear assemblies.
- Manufacturing and processing facilities.
- OEM transformer distribution equipment.
- Infrastructure and utility installations.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Fuse Class | gTr | |
| Current | 577 A | |
| Manufacturer | Mersen | |
| Series | NH gTr Transformer Protection Fuse-Links | |
| Model | NH32GTR400KVA-1 | |
| Item number | E1030542A | |
| Product type | DIN NH transformer protection fuse-link | |
| Fuse characteristic | gTr | |
| Fuse size | NH3 | |
| Transformer rating | 400 kVA | |
| Rated current | 577 A | |
| Rated voltage | 400 V AC | |
| Voltage type | AC | |
| Breaking capacity | 100 kA AC | |
| Indicator | Centre indicator | |
| Gripping lugs | Isolated gripping lugs | |
| Mounting type | Clip mounting | |
| Terminal type | Plain blade contacts | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Dimensions (L × W × H) | Approx. 150 × 72.9 × 88.9 mm | |
| Power dissipation at rated current | 25 W | |
| Product weight | Approx. 1 kg | |
| EAN | 3605340535792 | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH32GTR400KVA-1 used for?
The NH32GTR400KVA-1 is designed to protect low voltage distribution transformers against overload and short-circuit faults.
What transformer rating is this fuse-link designed for?
This fuse-link is designed for transformers with a nominal rating of 400 kVA on a 400 V AC system.
What is the rated current of the NH32GTR400KVA-1?
The fuse-link has a rated current of 577 A.
What does the gTr characteristic mean?
The gTr characteristic is specifically adapted to transformer protection, allowing normal energisation currents while providing dependable overload and short-circuit protection.
What type of gripping lugs does this fuse-link have?
The NH32GTR400KVA-1 has isolated gripping lugs, helping support safer handling by qualified professionals using the correct NH fuse replacement equipment.
Trusted by Electrical Professionals Worldwide
Mersen NH gTr fuse-links are widely specified by electrical engineers, transformer manufacturers and panel builders for dependable transformer protection, high fault interruption performance and reliable operation in low voltage distribution systems.
