Wöhner 03946 NH3 400 A gG fuse link rated at 690 V AC for reliable cable and equipment protection in industrial electrical distribution systems.
£112.08
The Wöhner 03946 is a premium NH3 gG fuse link engineered to provide dependable protection against overloads and short circuits in low-voltage industrial power distribution systems. Manufactured by Wöhner, this 400 A NH fuse complies with IEC 60269 standards and is designed to safeguard cables, switchgear and electrical equipment in demanding industrial and commercial applications.
Designed for installation in NH size 3 fuse bases and fuse switch disconnectors, the Wöhner 03946 combines high breaking capacity with a durable porcelain body and a double fuse status indicator for quick visual identification of a blown fuse during maintenance.
With a 400 A rated current, 690 V AC rating and gG utilisation category, the Wöhner 03946 provides full-range protection for cables and electrical equipment, making it an ideal solution for panel builders, OEM manufacturers and industrial maintenance engineers.
NH fuse links provide fast and dependable protection against overloads and short-circuit faults, helping protect cables, switchgear and industrial electrical equipment. Their high interrupting capacity enables faults to be safely cleared, reducing equipment damage and minimising downtime.
The Wöhner 03946 is designed for seamless compatibility with NH3 fuse holders and fuse switch disconnectors, making it ideal for industrial switchboards, motor control centres, OEM equipment and low-voltage power distribution systems.
| Current | 400 A |
|---|---|
| Manufacturer | Wöhner |
| Series | NH Fuse Links |
| Model | 03946 |
| Product type | NH fuse link |
| Rated current | 400 A |
| Rated voltage AC | 690 V |
| Rated voltage DC | 250 V |
| Fuse size | NH3 |
| Utilisation category | gG |
| Rated breaking capacity | 80 kA AC / 80 kA DC |
| Status indicator | Double indicator |
| Body material | Porcelain |
| Halogen free | Yes |
| Power dissipation at full load | 34.0 W |
| Standards | IEC 60269-1 / IEC 60269-2 |
| HS Code | 85361090 |
| Country of Manufacture | Hungary |
The Wöhner 03946 is an NH3 gG fuse link designed to protect electrical circuits against overloads and short circuits.
The Wöhner 03946 has a rated current of 400 A.
The fuse is rated for 690 V AC and 250 V DC.
The gG utilisation category provides full-range protection for cables and electrical equipment against overloads and short circuits.
It is commonly installed in industrial switchboards, motor control centres, fuse switch disconnectors and low-voltage power distribution systems.
Wöhner NH fuse links are trusted by electrical engineers, OEM manufacturers and panel builders for delivering reliable circuit protection, high interrupting capacity and dependable performance in demanding industrial power distribution applications.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...