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33717 Wohner in-line fuse switch-disconnector 400 A
Wöhner 33717 QUADRON 185Power single-pole NH 2 fuse switch-disconnector rated at 400 A for industrial 185 mm busbar systems.
£190.34
Why Choose the Wöhner 33717 QUADRON® 185Power Fuse Switch-Disconnector?
The Wöhner 33717 is a heavy-duty 400 A NH fuse switch-disconnector designed to provide safe switching, reliable isolation and dependable overcurrent protection in industrial low-voltage power distribution systems. Part of the Wöhner QUADRON® 185Power range, this single-pole switchable unit is engineered for applications requiring individual phase isolation while maintaining the performance of an NH fuse system.
Designed for installation on 185 mm busbar systems, the Wöhner 33717 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 self-closing inspection holes and lockable cover enhance operational safety and simplify maintenance.
Compatible with NH 2 fuse links in accordance with IEC / HD 60269-2, the 33717 is ideally suited to industrial switchboards, motor control centres, OEM machinery and main distribution panels. Its modular QUADRON® 185Power design enables seamless integration with other Wöhner switching and protection products.
Key Advantages
- Heavy-duty 400 A NH fuse switch-disconnector.
- Single-pole switchable for selective phase isolation.
- Compatible with NH 2 fuse links.
- Designed for the QUADRON® 185Power busbar platform.
- Lockable cover with self-closing inspection holes.
- Secure M12 screw cable terminals.
Key Features
- Wöhner QUADRON® 185Power series.
- 400 A rated current.
- NH 2 fuse size.
- Single-pole switchable design.
- M12 screw terminal connections.
- Suitable for drilled 185 mm busbar systems.
- Connection from top or bottom.
- Front protection rating of IP20.
Safe Switching and Reliable Circuit Protection
The Wöhner 33717 combines safe manual isolation with NH fuse protection, making it suitable for protecting high-current industrial feeders against overloads and short circuits. The single-pole switching design allows individual phases to be isolated for maintenance or testing without affecting the remaining system.
As part of the modular QUADRON® 185Power platform, the device can be installed alongside fuse blocks, MCCB adapters, switch-disconnectors and monitoring accessories on a common 185 mm busbar system, simplifying panel construction while allowing future expansion.
Typical Applications
- Industrial low-voltage switchboards.
- Main and sub-distribution boards.
- Motor control centres.
- Machine building and OEM equipment.
- Manufacturing facilities.
- Commercial and infrastructure power distribution.
Technical Specifications
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| Device Type | Fuse switch disconnector | |
|---|---|---|
| Fuse Size | NH2 | |
| Mounting Type | Busbar system 185 mm | |
| Fuse Type | NH (DIN) | |
| Rail / Busbar Profile | 100 × 10 mm, 120 × 10 mm, 30 × 10 mm, 40 × 10 mm, 60 × 10 mm, 80 × 10 mm | |
| Product Series | Wöhner 185Power | |
| Busbar Centre Distance (mm) | 185 mm | |
| Current | 400 A | |
| Phase | Single Phase | |
| Poles | 1-pole | |
| Manufacturer | Wöhner | |
| Series | QUADRON® 185Power | |
| Model | 33717 | |
| Alternative part number | 33717000A | |
| Product type | NH fuse switch-disconnector | |
| Rated current | 400 A | |
| Fuse size | NH 2 | |
| Number of poles | 1 (single-pole switchable) | |
| Connection type | M12 screw terminals | |
| Compatible busbars | 30, 40, 60, 80, 100 or 120 × 10 mm | |
| Busbar system | 185Power | |
| Fuse standard | IEC / HD 60269-2 | |
| Maximum permitted fuse power dissipation | 34 W | |
| Protection rating | IP20 (front) | |
| Standards | IEC 60947-1:2020, IEC 60947-3:2020 | |
| Approvals | IEC (CB), CCC | |
| Pack quantity | 1 | |
| EAN | 4021267337179 |
Frequently Asked Questions
What is the Wöhner 33717 used for?
The Wöhner 33717 is a single-pole NH fuse switch-disconnector designed for switching, isolation and overcurrent protection within industrial electrical distribution systems.
Which fuse links are compatible?
The device accepts NH 2 fuse links manufactured in accordance with IEC / HD 60269-2.
What is the rated current?
The Wöhner 33717 has a rated current of 400 A.
Can the cover be locked?
Yes. The cover can be locked in the closed position to help prevent unauthorised operation and improve operator safety.
Which busbar systems is it designed for?
It is designed for Wöhner 185Power busbar systems using busbars measuring 30, 40, 60, 80, 100 or 120 × 10 mm.
Trusted by Electrical Professionals Worldwide
Wöhner QUADRON® 185Power fuse switch-disconnectors are trusted by panel builders, OEMs and industrial electrical engineers for dependable circuit protection, safe isolation and modular integration into high-performance power distribution systems.
