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33507 Wohner switch disconnector with fuses, 3-pole
Wöhner 33507 QUADRON Panel Speed three-pole NH fuse switch-disconnector with integrated electronic fuse monitoring, 125 A rating and panel-mounted box terminals.
£396.06
Why Choose the Wöhner 33507 QUADRON® Panel Speed Fuse Switch-Disconnector?
The Wöhner 33507 is a premium three-pole NH fuse switch-disconnector with integrated electronic fuse monitoring, designed for safe switching, circuit isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the innovative QUADRON® Panel Speed range, it combines reliable switching performance with continuous fuse status monitoring to reduce downtime and improve maintenance efficiency.
Featuring an operator-independent snap-action switching mechanism with double-breaking main contacts, the Wöhner 33507 provides consistent switching performance regardless of operating speed. The integrated electronic fuse monitoring continuously detects blown fuse links without requiring an auxiliary power supply, allowing maintenance engineers to identify faults quickly and restore service faster.
Designed for NH size 000 and NH size 00 fuse links, the Wöhner 33507 has a 125 A rated current and operates on systems up to 690 V AC. Its panel-mounted construction with robust box terminals makes it an ideal solution for industrial switchboards, motor control centres, machine control panels and OEM equipment.
Key Advantages
- Industrial NH fuse switch-disconnector with integrated electronic fuse monitoring.
- 125 A rated current for industrial power distribution.
- Compatible with NH size 000 and NH size 00 fuse links.
- Electronic monitoring enables rapid identification of blown fuses.
- Operator-independent snap-action switching mechanism.
- Double-breaking contacts enable safe, tool-free fuse replacement.
Key Features
- Wöhner QUADRON® Panel Speed series.
- Three-pole fuse switch-disconnector.
- 125 A rated current.
- 690 V AC rated operating voltage.
- Integrated electronic fuse monitoring with potential-free auxiliary contacts.
- Panel-mounted design.
- Box-terminal cable connection.
- FLAG indicator clearly displays switch position.
Intelligent Fuse Monitoring for Faster Maintenance
The Wöhner 33507 continuously monitors the condition of installed NH fuse links and immediately signals when a fuse has operated. The monitoring circuit works directly from the system voltage without requiring a separate auxiliary power supply and provides potential-free relay contacts for integration into alarm or control systems.
Combined with the proven spring-controlled switching mechanism and double-breaking contacts, the Wöhner 33507 delivers dependable protection while reducing troubleshooting time and improving the availability of industrial electrical systems.
Typical Applications
- Industrial switchboards.
- Machine control panels.
- Motor control centres.
- OEM electrical equipment.
- Industrial automation systems.
- Critical power distribution installations requiring fuse status monitoring.
Technical Specifications
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| Device Type | Fuse switch disconnector | |
|---|---|---|
| Mounting Type | Base / panel | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH00 | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Manufacturer | Wöhner | |
| Series | QUADRON® Panel Speed | |
| Model | 33507 | |
| Full part number | 33507000 | |
| Type number | QCS-NH00 | |
| Product type | NH fuse switch-disconnector with electronic fuse monitoring | |
| Fuse sizes | NH 000 and NH 00 | |
| Number of poles | 3 | |
| Rated current | 125 A | |
| Rated operating voltage | 690 V AC | |
| Maximum permitted AC voltage | 725 V | |
| Rated insulation voltage (Ui) | 690 V AC | |
| Rated impulse withstand voltage (Uimp) | 6 kV | |
| Conditional short-circuit current | 50 kA with suitable gG fuse links | |
| Connection type | Box terminal | |
| Mounting type | Panel mounted | |
| Electronic fuse monitoring | Integrated, no auxiliary power required | |
| Maximum operating temperature | 55°C | |
| Weight | approx. 2.08 kg | |
| EAN | 4021267335076 |
Frequently Asked Questions
What is the Wöhner 33507 used for?
It is an NH fuse switch-disconnector with integrated electronic fuse monitoring for switching, isolation and overcurrent protection in industrial electrical systems.
Does the fuse monitoring require an external power supply?
No. The integrated electronic fuse monitoring operates directly from the system voltage and does not require an auxiliary power supply.
Which fuse sizes are compatible?
The Wöhner 33507 accepts NH size 000 and NH size 00 fuse links manufactured in accordance with IEC / HD 60269-2.
Can the fuse monitoring be connected to a control system?
Yes. The integrated monitoring provides potential-free auxiliary relay contacts for signalling fuse status to external monitoring or automation systems.
What is the rated current?
The Wöhner 33507 has a 125 A rated current with a maximum rated operating voltage of 690 V AC.
Trusted by Panel Builders Worldwide
Wöhner QUADRON® Panel Speed fuse switch-disconnectors are trusted by panel builders and industrial OEMs worldwide for delivering dependable switching, intelligent fuse monitoring and reliable circuit protection.
