The Wöhner 03243 is a high-quality NH gG fuse link designed to provide reliable overcurrent and short-circuit protection for industrial low-voltage power distribution systems. Manufactured by Wöhner, this fuse is suitable for protecting cables, switchgear and electrical distribution equipment in demanding commercial and industrial environments.
Designed for installation in compatible NH fuse switch disconnectors and fuse bases, the Wöhner 03243 delivers dependable protection against overloads and fault currents while ensuring long service life and high operational reliability. Its robust ceramic construction and full-range gG operating characteristic make it suitable for general-purpose circuit protection.
With a 125 A current rating, 400 V AC operating voltage and an NH Size 000 format, the Wöhner 03243 is widely used in industrial control panels, switchboards and electrical distribution systems.
Key Advantages
Industrial NH gG fuse link for dependable circuit protection.
125 A rated current for low-voltage distribution systems.
400 V AC rated voltage suitable for industrial installations.
Full-range gG characteristic protects against overloads and short circuits.
Compact NH Size 000 construction.
Suitable for protecting cables, switchgear and electrical equipment.
Key Features
Manufacturer: Wöhner.
Model: 03243.
NH gG fuse link.
125 A rated current.
400 V AC rated voltage.
General-purpose gG operating characteristic.
Ceramic body construction.
Designed for industrial power distribution.
Reliable Protection for Industrial Power Distribution
NH gG fuse links provide dependable protection against overloads and short circuits for low-voltage electrical systems. They are commonly used to protect distribution circuits, switchgear, cables and industrial equipment while helping minimise damage during electrical faults.
The Wöhner 03243 is widely specified by panel builders, electrical contractors and maintenance engineers requiring reliable overcurrent protection for modern industrial electrical installations.
Typical Applications
Industrial power distribution.
Electrical switchboards.
Distribution panels.
Cable protection.
Motor feeder circuits.
Commercial and industrial electrical installations.
Technical Specifications
Current
125 A
Manufacturer
Wöhner
Model
03243
Product type
NH gG fuse link
Rated current
125 A
Rated voltage
400 V AC
Fuse characteristic
gG
Fuse size
NH Size 000
Frequency
50 / 60 Hz
Body material
Ceramic
Application
General-purpose circuit protection
Weight
Approx. 122 g
Standards
IEC 60269
HS Code
85361090
Country of Manufacture
Czechia
Frequently Asked Questions
What is the Wöhner 03243 used for?
The Wöhner 03243 is an NH gG fuse link designed to protect industrial electrical circuits against overloads and short circuits.
What is the rated current?
The fuse has a 125 A rated current.
What voltage is it designed for?
The Wöhner 03243 is rated for operation on systems up to 400 V AC.
What does the gG characteristic mean?
The gG operating characteristic provides full-range protection against both overloads and short-circuit faults for general-purpose electrical circuits.
Where is the Wöhner 03243 typically installed?
It is commonly installed in industrial switchboards, distribution panels and electrical power distribution systems using compatible NH fuse bases.
Trusted for Industrial Circuit Protection
Wöhner NH fuse links are trusted by electrical engineers, OEM manufacturers and panel builders for dependable protection of industrial low-voltage power distribution systems.
Current
125 A
Manufacturer
Wöhner
Model
03243
Product type
NH gG fuse link
Rated current
125 A
Rated voltage
400 V AC
Fuse characteristic
gG
Fuse size
NH Size 000
Frequency
50 / 60 Hz
Body material
Ceramic
Application
General-purpose circuit protection
Weight
Approx. 122 g
Standards
IEC 60269
HS Code
85361090
Country of Manufacture
Czechia
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...