Wöhner 33707 QUADRON 185Power open NH fuse block for NH 2 fuse links, rated at 400 A for industrial 185 mm busbar systems.
£236.51
The Wöhner 33707 is a heavy-duty 400 A NH fuse block engineered for reliable overcurrent protection in industrial low-voltage power distribution systems. As part of the Wöhner QUADRON® 185Power range, this open-version fuse block is designed for NH 2 fuse links, providing a robust and space-efficient solution for panel builders, OEMs and electrical contractors.
Designed for installation on 185 mm busbar systems, the Wöhner 33707 mounts directly onto drilled busbars measuring 30, 40, 60, 80, 100 or 120 × 10 mm. Robust M12 screw terminals provide secure cable connections, while the open construction allows quick fuse replacement and easy inspection during maintenance.
Supporting NH 2 fuse links manufactured in accordance with IEC / HD 60269-2, the 33707 delivers dependable overload and short-circuit protection for industrial switchboards, motor feeders and power distribution systems. It integrates seamlessly with other QUADRON® 185Power components, creating a flexible and scalable power distribution platform.
The Wöhner 33707 provides dependable mounting for NH 2 fuse links, protecting industrial electrical systems against overloads and short circuits. Its open construction enables rapid fuse replacement while offering excellent accessibility during installation and maintenance. The integrated provision for current transformers also supports energy monitoring and power management applications.
As part of the modular QUADRON® 185Power platform, the 33707 can be combined with fuse switch-disconnectors, MCCB adapters and other system components on a common 185 mm busbar system, simplifying panel construction and future expansion.
| Current | 400 A |
|---|---|
| Manufacturer | Wöhner |
| Series | QUADRON® 185Power |
| Model | 33707 |
| Alternative part number | 33707000A |
| Product type | NH fuse block (open version) |
| Rated current | 400 A |
| Rated operational voltage | 800 V AC |
| Maximum permitted voltage | 1000 V AC |
| Rated impulse withstand voltage | 12 kV |
| Fuse size | NH 2 |
| 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 | 34 W |
| Current transformer integration | Yes |
| Dimensions (W × H × D) | 200 × 670 × 173 mm |
| Approximate weight | 3.75 kg |
| Operating temperature | -40°C to +55°C |
| Halogen-free | Yes |
| Pack quantity | 1 |
| EAN | 4021267337070 |
The Wöhner 33707 is an open NH fuse block designed to mount NH 2 fuse links for overcurrent protection within industrial power distribution systems.
The device accepts NH 2 fuse links manufactured in accordance with IEC / HD 60269-2.
The Wöhner 33707 has a rated current of 400 A.
Yes. The fuse block is designed to allow current transformers to be integrated directly into the device or associated CT module.
No. The 33707 is an open NH fuse block for fuse mounting only. Where manual switching and isolation are required, a fuse switch-disconnector should be selected.
Wöhner QUADRON® 185Power NH fuse blocks are trusted by electrical engineers and panel builders for dependable overcurrent protection, robust construction and efficient integration into high-performance 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...