Wöhner 33501 QUADRON 60Classic Speed three-pole NH fuse switch-disconnector rated at 125 A and 690 V AC, with top box-terminal connection and snap-action switching mechanism.
£260.08
The Wöhner 33501 is a robust and highly reliable three-pole NH fuse switch-disconnector designed for safe switching, isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the advanced Wöhner QUADRON® 60Classic Speed series, it is developed for panel builders, machine manufacturers and electrical engineers requiring dependable protection with frequent switching capability.
This fuse switch-disconnector features an operator-independent snap-action switching mechanism with double-breaking main contacts. The mechanism provides consistent switching performance regardless of operating speed, while the double-break design allows safe, tool-free fuse replacement and creates an additional visible isolation gap when the cover and fuse links are removed.
With a rated current of 125 A, an operating voltage of up to 690 V AC and compatibility with NH size 000 and NH size 00 fuse links, the Wöhner 33501 is suitable for industrial feeder circuits, machinery and power distribution panels. Its top-mounted box terminal accepts copper conductors from 1.5 to 70 mm² and integrates directly with Wöhner 60Classic busbar systems.
NH fuse switch-disconnectors combine fused overcurrent protection with safe load switching and electrical isolation. The Wöhner 33501 uses double-breaking main contacts and a spring-controlled switching mechanism to provide predictable, operator-independent performance in industrial electrical systems.
The device can be used as a mains disconnector in suitable applications and includes a clearly visible FLAG position indicator. Its lockable OFF position, tool-free fuse replacement and compact CrossLink® busbar mounting design help panel builders create safe, organised and maintenance-friendly distribution assemblies.
| Phase | Three Phase |
|---|---|
| Manufacturer | Wöhner |
| Series | QUADRON® 60Classic Speed |
| Model | 33501 |
| Full part number | 33501000 |
| Type number | QCS-NH00 |
| Product type | NH fuse switch-disconnector |
| Fuse sizes | NH 000 and NH 00 |
| Fuse utilisation class | gG |
| Number of poles | 3 |
| Rated current | 125 A |
| Rated operating voltage | 690 V AC |
| Rated insulation voltage | 800 V AC |
| Rated impulse withstand voltage | 8 kV |
| Utilisation category | AC-23B at 690 V / 125 A |
| Conditional short-circuit current | 50 kA at 690 V |
| Connection position | Top |
| Connection type | Box terminal / cage-clamp connection |
| Conductor cross-section | 1.5–70 mm² copper |
| Busbar compatibility | 12, 15, 20, 25 and 30 × 5 mm, 10 mm and section busbars |
| Maximum operating temperature | 55°C |
| Dimensions (W × H × D) | 106 × 200 × 128 mm |
| Weight | approx. 2.19 kg |
| EAN | 4021267335014 |
It is used for fused circuit protection, load switching and electrical isolation in industrial low-voltage power distribution systems.
The device accepts NH size 000 and NH size 00 fuse links manufactured in accordance with IEC and HD 60269-2.
The Wöhner 33501 has a rated current of 125 A and can operate at up to 690 V AC.
The unit features a top cable connection with a box terminal suitable for copper conductors from 1.5 to 70 mm².
Yes. The switch-disconnector can be secured in the neutral or OFF position using up to three padlocks.
Wöhner QUADRON® 60Classic Speed products are trusted by panel builders, machine manufacturers and electrical engineers for safe switching, dependable circuit protection and efficient industrial power distribution.
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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...