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MERSEN FUSE NH3C 50KVA 400V GTR MI NH3GTR50KVA
Mersen NH3GTR50KVA NH3 gTr transformer protection fuse-link rated 72 A, 400 V AC with centre indicator and live gripping lugs for 50 kVA transformer protection.
£33.58
Why Choose the Mersen NH3GTR50KVA NH Fuse-Link?
The Mersen NH3GTR50KVA is a high-quality DIN NH gTr fuse-link specifically developed for the protection of 50 kVA distribution transformers in low voltage electrical systems. Designed to IEC standards, this NH3 fuse-link delivers dependable protection against overloads and short circuits while accommodating the high magnetising inrush currents associated with transformer energisation.
As part of the trusted Mersen NH gTr range, the NH3GTR50KVA features a centre visual indicator together with live gripping lugs, enabling fast identification of operated fuse-links and safe replacement using an approved NH fuse puller. Its robust ceramic construction ensures reliable operation in demanding industrial and commercial power distribution applications.
Rated at 72 A and 400 V AC, this fuse-link is ideal for transformer feeders, switchboards, industrial distribution systems and electrical infrastructure where dependable transformer protection and excellent selectivity are essential.
Key Advantages
- Designed specifically for 50 kVA transformer protection.
- NH3 DIN fuse-link manufactured to IEC standards.
- 400 V AC operation for low voltage power distribution.
- Centre indicator provides clear visual operation status.
- Live gripping lugs enable safe fuse replacement.
- Excellent discrimination with downstream protective devices.
- Reliable protection against overload and short-circuit faults.
Key Features
- Mersen NH gTr transformer protection fuse-link.
- Catalogue number: NH3GTR50KVA.
- Fuse size: NH3.
- Operating voltage: 400 V AC.
- Rated current: 72 A.
- Transformer rating: 50 kVA.
- Operating class: gTr.
- Centre visual indicator.
- Live gripping lugs.
- Suitable for industrial transformer protection applications.
Reliable Transformer Protection
Mersen NH gTr fuse-links are engineered specifically for transformer protection. Their carefully developed time/current characteristics permit transformer energisation without nuisance operation while providing dependable protection against overloads and short circuits throughout the installation.
The NH3GTR50KVA is widely used in transformer feeders, industrial switchboards, commercial buildings and electrical distribution systems where reliable low voltage transformer protection is required.
Typical Applications
- Distribution transformer protection.
- Industrial switchboards.
- Electrical distribution panels.
- Commercial buildings.
- Manufacturing facilities.
- Utility and infrastructure 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 | 72 A | |
| Manufacturer | Mersen | |
| Series | NH gTr Fuse-Links | |
| Model | NH3GTR50KVA | |
| Product type | NH transformer protection fuse-link | |
| Fuse size | NH3 | |
| Utilisation category | gTr | |
| Rated current | 72 A | |
| Rated voltage | 400 V AC | |
| Transformer nominal capacity | 50 kVA | |
| Indicator | Centre indicator | |
| Gripping lugs | Live gripping lugs | |
| Body width | 50 mm | |
| Power dissipation | 5.5 W | |
| Weight | Approximately 1 kg | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen NH3GTR50KVA used for?
It is designed to protect 50 kVA distribution transformers operating on 400 V AC low voltage electrical systems.
What is the rated current of this fuse-link?
The NH3GTR50KVA has a rated current of 72 A.
What does the gTr operating class mean?
The gTr utilisation category is specifically designed for transformer protection, allowing transformer inrush currents while providing full-range overload and short-circuit protection.
What does the centre indicator do?
The integrated centre indicator provides a visual indication that the fuse-link has operated, simplifying maintenance and replacement.
Where is this fuse-link typically installed?
It is installed in NH fuse bases within switchboards, transformer feeders and low voltage distribution equipment by qualified electrical professionals.
Trusted by Electrical Professionals Worldwide
Mersen NH transformer protection fuse-links are trusted by switchboard manufacturers, OEMs, electrical contractors and industrial maintenance engineers for dependable transformer protection, consistent performance and compliance with international standards.
