Wöhner 33621 QUADRON 185Power Speed NH size 00 fuse switch-disconnector with bottom M8 screw connection, integrated fuse monitoring and operator-independent switching.
£772.24
The Wöhner 33621 is a premium NH in-line fuse switch-disconnector designed for safe switching, reliable isolation and effective fuse protection in industrial low-voltage power distribution systems. As part of the Wöhner QUADRON® 185Power Speed series, this NH size 00 device is engineered for demanding switchboard, panel-building and busbar applications where dependable performance is essential.
Featuring an operator-independent snap-action switching mechanism, the device delivers consistent switching performance regardless of handle operating speed. Integrated fuse monitoring provides rapid indication of fuse status, helping minimise maintenance time and improve system reliability.
The Wöhner 33621 incorporates a bottom M8 screw connection and is designed for installation on 30, 40, 60, 80, 100 or 120 × 10 mm busbars. Unlike CrossLink-compatible variants, this model is intended for standard screw-connected busbar systems and is not suitable for installations using CrossLink protection modules.
NH fuse switch-disconnectors provide both overcurrent protection and dependable circuit isolation within industrial power distribution systems. When fitted with suitable NH fuse links, the Wöhner 33621 helps protect electrical equipment against overloads and short circuits while providing a safe means of disconnecting power during maintenance.
Its operator-independent switching mechanism ensures repeatable switching performance, while integrated fuse monitoring supports faster troubleshooting and reduced downtime. The touch-safe design, lockable cover and robust construction make it ideal for modern industrial switchgear installations.
| Manufacturer | Wöhner |
|---|---|
| Series | QUADRON® 185Power Speed |
| Model | 33621 |
| Full manufacturer SKU | 33621000A |
| Type number | QS185-00 |
| Product type | NH in-line fuse switch-disconnector |
| Fuse sizes | NH 000 and NH 00 |
| Number of poles | 3 |
| Rated current | Up to 160 A |
| Rated operational voltage | Up to 690 V AC |
| Connection position | Bottom |
| Connection type | M8 screw connection |
| Fuse monitoring | Integrated |
| Switching mechanism | Operator-independent snap-action mechanism |
| Compatible busbars | 30, 40, 60, 80, 100 and 120 × 10 mm |
| CrossLink compatibility | Not suitable |
| Mounting system | 185Power busbar system |
| ETIM classification | EC001046 |
| EAN | 4021267336219 |
| Pack size | 1 |
The Wöhner 33621 provides fused circuit protection, switching and electrical isolation for industrial low-voltage busbar power distribution systems.
The device is designed for compatible NH 000 and NH 00 fuse links.
Yes. Integrated fuse monitoring helps indicate fuse status and assists with maintenance and fault diagnosis.
No. The Wöhner 33621 uses standard screw connections and is not suitable for systems incorporating CrossLink protection modules.
The device is compatible with busbars measuring 30, 40, 60, 80, 100 and 120 × 10 mm.
Wöhner QUADRON® fuse switch-disconnectors are trusted by electrical engineers, switchgear manufacturers and panel builders worldwide for reliable switching, safe circuit isolation and dependable industrial power distribution.
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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...