Why Choose the Wöhner 03289 NH Fuse-Base for Photovoltaic Systems?
The Wöhner 03289 is a high-performance NH fuse-base for photovoltaic (PV) applications, engineered to provide a secure and reliable mounting solution for NH 1XL PV fuse links in high-voltage DC systems. Manufactured by Wöhner, this fuse-base is designed for demanding renewable energy installations where safety, durability and dependable electrical performance are essential.
Designed for panel mounting, the Wöhner 03289 features an M10 incoming screw connection with an outgoing connection to 2 × 30 × 10 mm busbars. Its touch-protected construction provides enhanced operator safety while allowing quick installation and maintenance in photovoltaic combiner boxes and DC distribution equipment.
Rated for 250 A, 1000 V AC and 1500 V DC, the Wöhner 03289 complies with IEC 60269-1, IEC 60269-2, UL 4248-1 and UL 4248-19, making it ideal for industrial solar power systems and renewable energy infrastructure.
Key Advantages
Purpose-built NH fuse-base for photovoltaic installations.
250 A rated current for demanding PV applications.
1000 V AC / 1500 V DC operating capability.
Touch-protected construction improves installation safety.
Suitable for one or two 30 × 10 mm internal busbars.
Designed for long-term reliability in renewable energy systems.
Key Features
Manufacturer: Wöhner.
Model: 03289.
NH fuse-base for photovoltaic systems.
250 A rated current.
1000 V AC / 1500 V DC rated voltage.
NH Size 1XL.
Single-pole design.
M10 incoming screw connection.
Outgoing connection to 2 × 30 × 10 mm busbars.
Panel mounting with touch protection.
Engineered for Modern Photovoltaic Installations
High-voltage photovoltaic systems require robust components capable of safely handling DC voltages while providing reliable protection against overloads and fault currents. The Wöhner 03289 provides a secure, touch-protected mounting solution for NH PV fuse links, helping maximise operational reliability and simplify maintenance.
Its compact panel-mounted design makes it suitable for photovoltaic combiner boxes, inverter systems and industrial DC distribution equipment where dependable protection and long service life are essential.
Typical Applications
Photovoltaic combiner boxes.
Solar power distribution systems.
PV inverter protection.
Renewable energy installations.
Industrial DC switchboards.
Utility-scale solar farms.
Technical Specifications
Current
250 A
Phase
Single Phase
Manufacturer
Wöhner
Model
03289
Product type
NH fuse-base for photovoltaic applications
Rated current
250 A
Rated voltage
1000 V AC / 1500 V DC
Rated impulse withstand voltage (Uimp)
6 kV
Short-circuit strength
50 kA (when protected by fuses)
Fuse size
NH 1XL
Number of poles
1
Mounting
Panel mounting plate
Incoming connection
M10 screw terminal
Outgoing connection
2 × 30 × 10 mm busbar
Dimensions (W × H × D)
60 × 266 × 102 mm
Weight
Approx. 580 g
Halogen free
Yes
Standards
IEC 60269-1, IEC 60269-2, UL 4248-1, UL 4248-19
HS Code
85351000
Country of Manufacture
Germany
Frequently Asked Questions
What is the Wöhner 03289 used for?
The Wöhner 03289 is an NH fuse-base designed for photovoltaic installations, providing safe mounting for NH 1XL fuse links in high-voltage DC systems.
What is the rated current of the Wöhner 03289?
The fuse-base has a maximum rated current of 250 A.
What voltages does the Wöhner 03289 support?
It is rated for operation up to 1000 V AC and 1500 V DC.
What type of connections does the fuse-base use?
The Wöhner 03289 uses an M10 incoming screw connection with an outgoing connection to two 30 × 10 mm busbars.
Where is the Wöhner 03289 typically installed?
It is commonly installed in photovoltaic combiner boxes, inverter systems and industrial solar power distribution equipment.
Trusted for Renewable Energy Installations
Wöhner photovoltaic fuse-bases are trusted worldwide by solar installers, OEM manufacturers and electrical engineers for dependable protection in high-voltage renewable energy systems.
Current
250 A
Phase
Single Phase
Manufacturer
Wöhner
Model
03289
Product type
NH fuse-base for photovoltaic applications
Rated current
250 A
Rated voltage
1000 V AC / 1500 V DC
Rated impulse withstand voltage (Uimp)
6 kV
Short-circuit strength
50 kA (when protected by fuses)
Fuse size
NH 1XL
Number of poles
1
Mounting
Panel mounting plate
Incoming connection
M10 screw terminal
Outgoing connection
2 × 30 × 10 mm busbar
Dimensions (W × H × D)
60 × 266 × 102 mm
Weight
Approx. 580 g
Halogen free
Yes
Standards
IEC 60269-1, IEC 60269-2, UL 4248-1, UL 4248-19
HS Code
85351000
Country of Manufacture
Germany
No documents available for this product.
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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...