Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
33503 Wohner switch disconnector with fuses, 3-pole
Wöhner 33503 QUADRON 60Classic Speed three-pole NH size 00 fuse switch-disconnector with door coupling rotary handle, 125 A rating and snap-action switching mechanism.
£208.06
Why Choose the Wöhner 33503 QUADRON® 60Classic Speed Fuse Switch-Disconnector?
The Wöhner 33503 is a high-performance 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 range, it is specifically developed for machine builders, panel manufacturers and OEMs requiring reliable switching combined with external door operation.
Featuring an operator-independent snap-action switching mechanism with double-breaking main contacts, the Wöhner 33503 delivers fast, dependable switching regardless of handle speed. It is designed for use with a door coupling rotary handle, allowing safe operation without opening the electrical enclosure while maintaining high levels of operator protection.
With a rated current of 125 A, support for NH size 00 fuse links and compatibility with 60Classic busbar systems, the Wöhner 33503 is ideal for industrial switchboards, motor control centres and machinery power distribution. Its bottom box-terminal connection simplifies wiring while ensuring secure electrical connections.
Key Advantages
- Industrial NH fuse switch-disconnector with door-coupling operation.
- 125 A rated current for industrial power distribution.
- Compatible with NH size 00 fuse links.
- Operator-independent snap-action switching mechanism.
- Double-breaking contacts for safer fuse replacement.
- Suitable for use as a main switch or emergency OFF switch with the appropriate rotary handle.
Key Features
- Wöhner QUADRON® 60Classic Speed series.
- Three-pole fuse switch-disconnector.
- 125 A rated current.
- 690 V AC rated operating voltage.
- Bottom box-terminal connection.
- Designed for door coupling rotary handle.
- FLAG switch position indicator.
- CrossLink® adapter technology for secure busbar mounting.
Reliable Switching for Industrial Power Distribution
NH fuse switch-disconnectors combine switching, isolation and overcurrent protection in a single compact assembly. The Wöhner 33503 enables operators to safely isolate circuits for maintenance while protecting equipment from overloads and short circuits.
Its door-coupling operation allows switching from outside the control panel, improving safety and convenience in industrial environments. The integrated CrossLink® mounting system also reduces installation time while providing reliable long-term electrical performance.
Typical Applications
- Industrial switchboards.
- Motor control centres.
- Machine control panels.
- OEM electrical equipment.
- Industrial automation systems.
- Power distribution installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Fuse switch disconnector | |
|---|---|---|
| Fuse Size | NH00 | |
| Fuse Type | NH (DIN) | |
| Mounting Type | Busbar system 60 mm | |
| Busbar Centre Distance (mm) | 60 mm | |
| Product Series | Wöhner 60Classic | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Manufacturer | Wöhner | |
| Series | QUADRON® 60Classic Speed | |
| Model | 33503 | |
| Full part number | 33503000 | |
| Type number | QCS-NH00 | |
| Product type | NH fuse switch-disconnector | |
| Fuse size | NH 00 | |
| 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-23A / AC-23B | |
| Connection type | Box 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) | approx. 106 × 200 × 128 mm | |
| Weight | approx. 2.08 kg |
Frequently Asked Questions
What is the Wöhner 33503 used for?
It is an NH fuse switch-disconnector used for safe switching, circuit isolation and overcurrent protection in industrial electrical systems.
Which fuse size is compatible?
The Wöhner 33503 is designed for NH size 00 fuse links.
Can the switch be operated from outside the panel?
Yes. The device is designed for use with a door coupling rotary handle, allowing safe external operation.
What is the rated current?
The switch-disconnector has a rated current of 125 A.
Which busbar systems is it compatible with?
It mounts directly onto Wöhner 60Classic busbar systems using 12, 15, 20, 25, 30 × 5 mm, 10 mm and section busbars.
Trusted by Panel Builders Worldwide
Wöhner QUADRON® 60Classic Speed fuse switch-disconnectors are trusted worldwide for delivering dependable switching performance, reliable circuit protection and safe industrial power distribution.
