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33603 Wohner NH fuse switch-disconnector size 3, 630 A
Wöhner 33603 QUADRON 60Classic NH size 3 fuse switch disconnector rated at 630 A with CrossLink Technology, M12 screw terminals and direct mounting for 60 mm busbar systems.
£317.38
Why Choose the Wöhner 33603 NH Fuse Switch Disconnector?
The Wöhner 33603 is a heavy-duty NH size 3 fuse switch disconnector designed for the safe switching, isolation and protection of high-current electrical circuits in demanding industrial power distribution systems. Part of the renowned Wöhner QUADRON 60Classic range, it mounts directly onto compatible 60 mm busbar systems using Wöhner's innovative CrossLink® Technology, making it ideal for switchboards, distribution panels and OEM electrical equipment.
Engineered for dependable operation, the Wöhner 33603 incorporates integrated arc chambers, split shock protection for safer conductor termination and self-closing inspection holes within the cover for convenient testing. The CrossLink® adapter allows quick conversion between top and bottom cable connections while maintaining touch protection, helping reduce installation time and simplify panel assembly.
With a 630 A rated operational current, 3-pole configuration and compatibility with NH size 3 fuse links, the Wöhner 33603 is ideally suited to protecting incoming supplies, high-current feeders and industrial distribution systems where maximum reliability and safe operation are essential.
Key Advantages
- Heavy-duty NH size 3 fuse switch disconnector.
- 630 A rated operational current.
- CrossLink® Technology for fast and flexible installation.
- Top or bottom cable connection.
- Direct mounting onto compatible 60 mm busbar systems.
- Integrated arc chambers improve operational safety.
Key Features
- Wöhner QUADRON 60Classic series.
- 630 A rated current.
- NH size 3 fuse switch disconnector.
- 3-pole configuration.
- M12 screw terminals.
- Top or bottom cable connection.
- CrossLink® adapter technology.
- Integrated arc chambers.
- Split shock protection for safe conductor termination.
- Self-closing inspection holes within the cover.
Reliable Protection for High-Current Industrial Installations
The Wöhner 33603 combines a robust switch disconnector with an NH fuse holder to provide dependable circuit isolation alongside high-performance overload and short-circuit protection. Its heavy-duty construction makes it particularly suitable for industrial applications where high current ratings and safe maintenance procedures are critical.
CrossLink® Technology enables rapid installation and flexible cable routing while maintaining touch-safe construction, helping panel builders create efficient, reliable and space-saving power distribution systems.
Typical Applications
- Main incoming power distribution.
- Industrial switchboards.
- High-current feeder protection.
- Motor control centres.
- OEM machinery.
- Industrial automation systems.
Technical Specifications
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| Fuse Size | NH3 | |
|---|---|---|
| Device Type | Fuse switch disconnector | |
| Mounting Type | Busbar system 60 mm | |
| Fuse Type | NH (DIN) | |
| Current | 630 A | |
| Rail / Busbar Profile | 12 × 10 mm, 20 × 10 mm, 30 × 10 mm | |
| Product Series | Wöhner 60Classic | |
| Busbar Centre Distance (mm) | 60 mm | |
| Poles | 3-pole | |
| Manufacturer | Wöhner | |
| Series | QUADRON 60Classic | |
| Model | 33603 | |
| Alternative part number | 33603000 | |
| Type designation | LTS-3 | |
| Product type | NH fuse switch disconnector | |
| Fuse size | NH 3 | |
| Rated current | 630 A | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage (Ui) | 800 V AC | |
| Rated impulse withstand voltage (Uimp) | 6 kV | |
| Number of poles | 3 | |
| Terminal type | M12 screw terminals | |
| Connection | Top or bottom | |
| Mounting type | 60 mm busbar system | |
| Compatible busbars | 12, 20, 30 × 10 mm flat busbars and section busbars | |
| Protection rating | IP30 (front) | |
| Dimensions (W × H × D) | 256 × 300 × 160 mm | |
| EAN | 4021267336035 |
Frequently Asked Questions
What is the Wöhner 33603 used for?
The Wöhner 33603 is an NH size 3 fuse switch disconnector designed to provide safe switching, isolation and overcurrent protection in high-current industrial electrical installations.
What fuse size does the Wöhner 33603 accept?
The unit is designed for NH size 3 fuse links.
What is the rated current?
The Wöhner 33603 has a rated operational current of 630 A.
Can the cable connection be installed from either direction?
Yes. CrossLink® Technology allows the connection to be configured from either the top or bottom while maintaining touch protection.
Which busbar systems are compatible?
The switch disconnector is designed for compatible 60 mm busbar systems using 12, 20 and 30 × 10 mm flat busbars as well as section busbars.
Trusted by Industrial Panel Builders
Wöhner QUADRON NH fuse switch disconnectors are trusted worldwide by switchboard manufacturers, OEM machine builders and electrical engineers for dependable circuit protection, robust construction and long-term reliability in industrial power distribution systems.
