The Wöhner 03942 is a premium NH2 gG fuse link designed to provide dependable protection against overloads and short circuits in low-voltage industrial power distribution systems. Manufactured by Wöhner, this 250 A NH fuse complies with IEC 60269 standards and is engineered to protect cables, switchgear and electrical equipment in demanding industrial and commercial applications.
Designed for installation in NH size 2 fuse bases and fuse switch disconnectors, the Wöhner 03942 combines high breaking capacity with long service life. Its porcelain body and double indicator design provide excellent mechanical strength, thermal stability and straightforward visual inspection during maintenance.
With a 250 A rated current, 690 V AC rating and gG utilisation category, the Wöhner 03942 delivers full-range protection for cables and electrical equipment, making it an ideal choice for OEM manufacturers, panel builders and industrial maintenance engineers.
Key Advantages
High-quality NH2 fuse link for industrial circuit protection.
250 A rated current for reliable cable and equipment protection.
690 V AC operating voltage suitable for industrial power systems.
gG utilisation category providing full-range overload and short-circuit protection.
80 kA breaking capacity for demanding fault conditions.
Manufactured by Wöhner for dependable long-term reliability.
Key Features
Wöhner NH fuse series.
Part number: 03942.
Rated current: 250 A.
Rated voltage: 690 V AC.
Rated voltage: 250 V DC.
Fuse size: NH2.
Utilisation category: gG.
Double fuse status indicator.
Porcelain body with durable contact blades.
Suitable for NH fuse switch disconnectors and fuse bases.
Reliable Protection for Industrial Electrical Systems
NH fuse links provide rapid protection against overloads and short-circuit faults, helping safeguard cables, switchgear and industrial electrical equipment. Their high interrupting capacity enables faults to be safely cleared while reducing equipment damage and minimising costly downtime.
The Wöhner 03942 is designed for seamless compatibility with NH2 fuse holders and fuse switch disconnectors, making it an ideal solution for industrial switchboards, machine control panels and low-voltage power distribution systems.
Typical Applications
Industrial switchboards.
Low-voltage power distribution systems.
Machine control panels.
Motor protection circuits.
OEM electrical equipment.
Commercial and industrial electrical installations.
Technical Specifications
Current
250 A
Manufacturer
Wöhner
Series
NH Fuse Links
Model
03942
Product type
NH fuse link
Rated current
250 A
Rated voltage AC
690 V
Rated voltage DC
250 V
Fuse size
NH2
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
20.6 W
Standards
IEC 60269-1 / IEC 60269-2
HS Code
85361090
Country of Manufacture
Hungary
Frequently Asked Questions
What is the Wöhner 03942 used for?
The Wöhner 03942 is an NH2 gG fuse link designed to protect electrical circuits against overloads and short circuits.
What is the current rating of this fuse?
The Wöhner 03942 has a rated current of 250 A.
What voltage is the fuse rated for?
The fuse is rated for 690 V AC and 250 V DC.
What does the gG classification mean?
The gG utilisation category provides full-range protection for cables and electrical equipment against overloads and short circuits.
Where is the Wöhner 03942 commonly installed?
It is commonly installed in industrial switchboards, control panels, fuse switch disconnectors and low-voltage power distribution systems.
Trusted by Electrical Professionals Worldwide
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 systems.
Current
250 A
Manufacturer
Wöhner
Series
NH Fuse Links
Model
03942
Product type
NH fuse link
Rated current
250 A
Rated voltage AC
690 V
Rated voltage DC
250 V
Fuse size
NH2
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
20.6 W
Standards
IEC 60269-1 / IEC 60269-2
HS Code
85361090
Country of Manufacture
Hungary
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...