Wöhner 33510 QUADRON 60Classic Speed three-pole NH size 1 fuse switch-disconnector with 250 A rating, bottom M10 screw terminals and CrossLink® busbar mounting.
£746.51
The Wöhner 33510 is a heavy-duty three-pole NH fuse switch-disconnector engineered for safe switching, circuit isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the proven QUADRON® 60Classic Speed range, it is designed for demanding industrial applications requiring reliable switching performance with NH size 1 fuse links rated up to 250 A.
The switch-disconnector incorporates an operator-independent snap-action switching mechanism with double-breaking main contacts, ensuring fast and dependable switching regardless of operating speed. Safe, tool-free fuse replacement is possible thanks to the double-breaking design, while removing the cover and fuse links provides an additional visible isolation gap for maintenance.
Designed for direct installation onto Wöhner 60Classic busbar systems, the Wöhner 33510 features robust M10 bottom screw terminals and CrossLink® adapter technology for quick, secure mounting. It is suitable for use as a main isolator in accordance with IEC/EN 60204-1 and is widely used in industrial switchboards, machinery and OEM power distribution equipment.
The Wöhner 33510 combines dependable load switching, circuit isolation and overcurrent protection in a compact busbar-mounted assembly. Its spring-controlled switching mechanism delivers consistent operation during frequent switching duties, while the double-breaking contact system enhances operator safety during fuse replacement and maintenance.
CrossLink® adapter technology enables fast, secure installation onto compatible Wöhner 60Classic busbar systems without compromising electrical performance. The switch-disconnector is suitable for use as a mains disconnector in accordance with IEC/EN 60204-1, making it ideal for modern industrial switchgear assemblies.
| Phase | Three Phase |
|---|---|
| Manufacturer | Wöhner |
| Series | QUADRON® 60Classic Speed |
| Model | 33510 |
| Full part number | 33510000 |
| Type number | QCS-NH1 |
| Product type | NH fuse switch-disconnector |
| Fuse size | NH 1 |
| Number of poles | 3 |
| Rated current | 250 A |
| Rated operating voltage | 690 V AC |
| Rated insulation voltage (Ui) | 800 V AC |
| Rated impulse withstand voltage (Uimp) | 8 kV |
| Utilisation category | AC-23B (690 V / 250 A), AC-23A (500 V / 250 A), AC-22A (690 V / 250 A) |
| Conditional short-circuit current | 50 kA with suitable NH fuse links |
| Connection type | M10 screw terminal, bottom connection |
| Mounting type | Busbar mounted |
| Busbar compatibility | 12, 15, 20, 25, 30 × 5 mm, 10 mm and section busbars |
| Dimensions (W × H × D) | 184 × 286 × 194 mm |
| Weight | approx. 5.67 kg |
| Pack size | 1 |
| EAN | 4021267335106 |
It is an NH size 1 fuse switch-disconnector used for switching, circuit isolation and overcurrent protection in industrial low-voltage power distribution systems.
The Wöhner 33510 is designed for NH size 1 fuse links manufactured in accordance with IEC / HD 60269-2.
The switch-disconnector has a rated current of 250 A with a maximum rated operating voltage of 690 V AC.
The unit features robust M10 screw terminals with bottom cable connection for secure industrial wiring.
Yes. It is suitable for use as a mains disconnector in accordance with IEC/EN 60204-1 when installed and operated as specified by the manufacturer.
Wöhner QUADRON® 60Classic Speed fuse switch-disconnectors are trusted by electrical engineers, panel builders and OEM manufacturers for delivering dependable switching, reliable circuit protection and long-term industrial performance.
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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...