Wöhner 33514 QUADRON 60Classic Speed three-pole NH size 1 fuse switch-disconnector with top M10 screw terminals, door coupling rotary handle operation and 250 A rating.
£746.51
The Wöhner 33514 is a high-performance three-pole NH size 1 fuse switch-disconnector designed for safe switching, reliable isolation and overcurrent protection in demanding industrial low-voltage power distribution systems. As part of the QUADRON® 60Classic Speed range, it is equipped with top M10 cable connections and is specifically designed for operation using a door coupling rotary handle, allowing secure switching from outside the enclosure while maintaining maximum operator safety.
The switch-disconnector incorporates an operator-independent snap-action switching mechanism with double-breaking main contacts, ensuring fast and consistent switching performance regardless of handle speed. The double-breaking design also enables safe, tool-free fuse replacement while providing an additional visible isolation gap when the cover and fuse carriers are removed for maintenance.
Designed for NH size 1 fuse links, the Wöhner 33514 has a 250 A rated current and operates at up to 690 V AC. It mounts directly onto compatible Wöhner 60Classic busbar systems using CrossLink® adapter technology, making it ideal for industrial switchboards, motor control centres, OEM machinery and main power distribution equipment.
The Wöhner 33514 enables operators to isolate electrical circuits safely from outside the enclosure when used with a compatible Wöhner door coupling rotary handle. It can serve as a main switch in accordance with IEC/EN 60204-1 and can also function as an Emergency OFF switch when fitted with the appropriate red/yellow handle. The handle can be locked in the OFF position using up to three padlocks to improve maintenance safety.
CrossLink® adapter technology allows quick, secure installation onto Wöhner 60Classic busbar systems while ensuring excellent electrical contact and dependable long-term performance. The robust spring-controlled switching mechanism makes the device well suited to frequent switching operations in industrial environments.
| Phase | Three Phase |
|---|---|
| Manufacturer | Wöhner |
| Series | QUADRON® 60Classic Speed |
| Model | 33514 |
| Full part number | 33514000 |
| 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 gG fuse links |
| Connection type | Top M10 screw terminals |
| Operation | Door coupling rotary handle |
| Mounting type | 60Classic busbar mounted |
| Busbar compatibility | 12, 15, 20, 25, 30 × 5 mm, 10 mm and section busbars |
| Dimensions (W × H × D) | 184 × 314 × 192 mm |
| Maximum operating temperature | 55°C |
| Weight | approx. 5.77 kg |
| EAN | 4021267335144 |
It is a three-pole NH size 1 fuse switch-disconnector designed for switching, circuit isolation and overcurrent protection in industrial low-voltage power distribution systems.
The Wöhner 33514 accepts standard NH size 1 fuse links manufactured in accordance with IEC / HD 60269-2.
It is designed for operation using a compatible Wöhner door coupling rotary handle, allowing safe switching from outside the enclosure.
The switch-disconnector has a 250 A rated current with a maximum rated operating voltage of 690 V AC.
Yes. When installed with the correct accessories, it can be used as a mains disconnector and as an Emergency OFF switch in accordance with IEC/EN 60204-1.
Wöhner QUADRON® 60Classic Speed fuse switch-disconnectors are trusted by panel builders, OEMs and industrial electrical engineers worldwide for dependable switching, reliable protection and long service life.
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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...