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03550 Wohner NH fuse 20 A
Wöhner 03550 NH size 1 gG fuse link with 20 A current rating and 500 V AC rating for industrial power distribution and circuit protection.
£13.19
Why Choose the Wöhner 03550 NH Fuse?
The Wöhner 03550 is a high-quality NH size 1 gG fuse link designed to provide dependable overcurrent and short-circuit protection for industrial low-voltage electrical distribution systems. Manufactured by Wöhner, a globally recognised specialist in electrical power distribution technology, this fuse delivers reliable circuit protection for switchgear, control panels and power distribution equipment.
Designed in accordance with IEC 60269 standards, the Wöhner 03550 offers consistent protection against overloads and short circuits while maintaining excellent operational reliability. Its porcelain body, high breaking capacity and dual indicator design make it suitable for demanding industrial environments where safety and uptime are essential.
With a 20 A current rating, 500 V AC operating voltage and gG operating class, this NH fuse is ideal for protecting feeders, motors, transformers, cables and general-purpose industrial circuits requiring dependable fault protection.
Key Advantages
- High-quality NH size 1 industrial fuse link.
- 20 A rated current for low-voltage distribution systems.
- 500 V AC rated voltage suitable for industrial applications.
- gG operating class providing full-range cable and equipment protection.
- High short-circuit breaking capacity for enhanced system safety.
- Dual indicator design allows quick visual fuse status identification.
Key Features
- Manufacturer: Wöhner.
- Part number: 03550.
- NH size 1 fuse link.
- 20 A rated current.
- 500 V AC / 250 V DC rated voltage.
- gG utilisation category.
- Double visual indicator.
- Porcelain body construction.
- Suitable for vertical and horizontal installation.
- Halogen-free materials.
Reliable Protection for Industrial Power Distribution
NH fuse links are widely used throughout industrial electrical installations to protect cables, motors, transformers and switchgear against overloads and high fault currents. The Wöhner 03550 is engineered to deliver rapid fault interruption, helping minimise equipment damage while maintaining the integrity of electrical distribution systems.
Its robust porcelain construction, excellent interrupting capacity and compliance with international standards make this fuse suitable for demanding industrial environments where dependable protection is essential.
Typical Applications
- Industrial switchboards.
- Power distribution panels.
- Motor protection circuits.
- Cable protection.
- Machine control panels.
- Manufacturing facilities.
- Commercial electrical installations.
- OEM electrical equipment.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Manufacturer | Wöhner | |
| Model | 03550 | |
| Product type | NH fuse link | |
| Fuse size | NH 1 | |
| Rated current | 20 A | |
| Rated voltage (AC) | 500 V | |
| Rated voltage (DC) | 250 V | |
| Operating class | gG | |
| Short-circuit breaking capacity (AC) | 120 kA | |
| Short-circuit breaking capacity (DC) | 80 kA | |
| Indicator | Double indicator | |
| Material | Porcelain | |
| Installation | Vertical or horizontal | |
| Halogen free | Yes | |
| Standards | IEC 60269-1, IEC 60269-2 | |
| HS Code | 85361050 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Wöhner 03550 used for?
The Wöhner 03550 is an NH size 1 fuse link designed to protect industrial electrical circuits against overloads and short circuits.
What is the current rating?
This fuse has a 20 A rated current.
What voltage is the fuse designed for?
The fuse is rated for 500 V AC and 250 V DC applications.
What does the gG classification mean?
gG fuse links provide full-range protection against both overloads and short circuits, making them suitable for general-purpose industrial circuit protection.
Where is this fuse typically installed?
The Wöhner 03550 is commonly installed in switchboards, power distribution systems, motor control centres and industrial electrical panels.
Trusted for Industrial Electrical Protection
Wöhner NH fuse links are trusted worldwide by panel builders, electrical contractors and industrial engineers for delivering reliable circuit protection, high breaking capacity and long-term operational safety.
