Wöhner 33708 QUADRON 185Power open NH fuse block for NH 3 fuse links, rated at 630 A for industrial 185 mm busbar systems.
£254.81
The Wöhner 33708 is a heavy-duty 630 A NH fuse block engineered for dependable overcurrent protection in demanding industrial low-voltage power distribution systems. Part of the Wöhner QUADRON® 185Power range, this open-version fuse block is designed for NH 3 fuse links, providing a robust and space-efficient solution for panel builders, OEMs and industrial electrical installations.
Designed for installation on 185 mm busbar systems, the Wöhner 33708 mounts directly onto busbars measuring 30, 40, 60, 80, 100 or 120 × 10 mm. Its M12 screw terminals provide secure cable connections, while the open construction enables quick fuse replacement and easy inspection during servicing.
Compatible with NH 3 fuse links manufactured to IEC / HD 60269-2, the Wöhner 33708 provides reliable protection for high-current feeders, industrial switchboards and main distribution systems. It integrates seamlessly with other QUADRON® 185Power devices, enabling flexible, modular power distribution designs.
The Wöhner 33708 provides secure mounting for NH 3 fuse links, protecting electrical installations against overloads and short circuits. Its open design offers excellent accessibility during installation and maintenance, while support for integrated current transformers makes it suitable for modern energy monitoring and management systems.
As part of the modular QUADRON® 185Power system, the 33708 can be installed alongside fuse switch-disconnectors, MCCB adapters and other system components on the same 185 mm busbar platform, helping create scalable and efficient power distribution solutions.
| Current | 630 A |
|---|---|
| Manufacturer | Wöhner |
| Series | QUADRON® 185Power |
| Model | 33708 |
| Alternative part number | 33708000A |
| Product type | NH fuse block (open version) |
| Rated current | 630 A |
| Rated operational voltage | 800 V AC |
| Maximum permitted voltage | 1000 V AC |
| Rated impulse withstand voltage | 12 kV |
| Fuse size | NH 3 |
| Number of poles | 3 |
| Connection type | M12 screw terminals |
| Compatible busbars | 30, 40, 60, 80, 100 or 120 × 10 mm |
| Busbar system | 185Power |
| Short-circuit strength | 50 kA (when protected by fuses) |
| Maximum fuse power dissipation | 48 W |
| Current transformer integration | Yes |
| Dimensions (W × H × D) | 100 × 670 × 173 mm |
| Approximate weight | 4.50 kg |
| Operating temperature | -40°C to +55°C |
| Halogen-free | Yes |
| Pack quantity | 1 |
| EAN | 4021267337087 |
The Wöhner 33708 is an open NH fuse block designed to mount NH 3 fuse links for overcurrent protection within industrial power distribution systems.
The device accepts NH 3 fuse links manufactured in accordance with IEC / HD 60269-2.
The Wöhner 33708 has a rated current of 630 A.
Yes. The fuse block is designed to allow current transformers to be integrated directly into the device or associated CT modules.
No. The 33708 is an open NH fuse block designed for fuse mounting only. Where switching and isolation are required, a compatible NH fuse switch-disconnector should be used.
Wöhner QUADRON® 185Power NH fuse blocks are trusted by panel builders and electrical engineers worldwide for reliable high-current fuse protection, modular installation and long-term performance in demanding industrial power distribution systems.
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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...