Wöhner 33512 QUADRON Panel Speed three-pole NH size 1 fuse switch-disconnector with M10 screw terminals, panel mounting and a 250 A rating.
£661.21
The Wöhner 33512 is a robust three-pole NH size 1 fuse switch-disconnector designed for safe switching, isolation and overcurrent protection in demanding industrial power distribution applications. As part of the QUADRON® Panel Speed range, it combines a compact panel-mounted design with an operator-independent snap-action switching mechanism, delivering fast, reliable switching and dependable long-term performance.
Designed for use with NH size 1 fuse links, the Wöhner 33512 is rated at 250 A and operates at up to 690 V AC. The unit is intended for mounting on a backplate and features M10 screw terminals for secure cable termination, making it an excellent choice for OEM machinery, industrial switchboards and low-voltage distribution panels.
Its double-breaking main contacts provide improved electrical isolation while enabling safe, tool-free fuse replacement. When fitted with a compatible rotary door handle, the switch-disconnector can be safely operated from outside the enclosure, improving operator safety and simplifying maintenance procedures.
The Wöhner 33512 is engineered to provide dependable switching performance in industrial environments where safety and reliability are essential. Its spring-assisted snap-action mechanism delivers consistent switching independent of operator speed, while the double-breaking contacts enhance isolation and simplify maintenance.
As part of the QUADRON® Panel Speed family, the switch-disconnector offers a compact solution for modern electrical panels while maintaining the high levels of protection and operational reliability expected from Wöhner products.
| Phase | Three Phase |
|---|---|
| Manufacturer | Wöhner |
| Series | QUADRON® Panel Speed |
| Model | 33512 |
| Full part number | 33512000 |
| Product type | NH fuse switch-disconnector |
| Fuse size | NH 1 |
| Number of poles | 3 |
| Rated current | 250 A |
| Rated operating voltage | 690 V AC |
| Connection type | M10 screw terminals |
| Mounting type | Panel mounted |
| Switching mechanism | Operator-independent snap-action |
| Operation | Door coupling rotary handle |
| Application | Industrial low-voltage power distribution |
| EAN | 4021267335120 |
It is a three-pole NH size 1 fuse switch-disconnector used for switching, circuit isolation and overcurrent protection in industrial electrical installations.
The Wöhner 33512 is designed for standard NH size 1 fuse links.
The device has a rated operational current of 250 A.
Yes. The switch-disconnector is designed for use with a compatible Wöhner door coupling rotary handle, allowing safe external operation.
It is commonly installed in industrial control panels, OEM machinery, switchboards and low-voltage power distribution systems.
Wöhner QUADRON® Panel Speed fuse switch-disconnectors are trusted worldwide by panel builders, machine manufacturers and electrical engineers for dependable switching, reliable protection and long service life.
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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...