SKU: 33203Alt SKU: 33203000MPN: 33203
33203 Wohner NH fuse switch-discon. size 3, 630 A, panel mounting

33203 Wohner NH fuse switch-discon. size 3, 630 A, panel mounting

Wöhner 33203 QUADRON Panel NH size 2 fuse switch disconnector rated at 400 A with M10 screw terminals for industrial low-voltage power distribution.

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Why Choose the Wöhner 33203 NH Fuse Switch Disconnector?

The Wöhner 33203 is a heavy-duty NH size 2 fuse switch disconnector designed for reliable switching, circuit isolation and fuse protection in industrial low-voltage power distribution systems. Part of the established Wöhner QUADRON® Panel range, it provides a robust panel-mounted solution for switchboards, motor control centres and high-current distribution equipment.

Designed for use with compatible NH 2 fuse links, the Wöhner 33203 combines dependable switching performance with effective protection against overload and short-circuit conditions. Its protective construction helps reduce accidental contact with live components, while the inspection facilities support convenient fuse checks during routine maintenance.

With a rated current of 400 A, a rated operational voltage of up to 690 V AC and robust M10 screw terminals, the Wöhner 33203 is well suited to demanding industrial applications requiring secure high-current conductor connections. Its panel-mounted design supports straightforward integration into professional low-voltage distribution assemblies.

Key Advantages

  • Heavy-duty NH size 2 fuse switch disconnector.
  • 400 A rated current for high-current power distribution.
  • Designed for compatible NH 2 fuse links.
  • M10 screw terminals provide secure conductor connections.
  • Combines switching, isolation and fuse protection in one device.
  • Panel-mounted construction supports efficient switchboard assembly.

Key Features

  • Wöhner QUADRON® Panel series.
  • NH size 2 fuse switch disconnector.
  • 400 A nominal current rating.
  • Suitable for NH 2 fuse links.
  • Rated operational voltage up to 690 V AC.
  • Robust M10 screw conductor terminals.
  • Three-pole switching configuration.
  • Protective cover with inspection facilities.

Reliable High-Current Protection and Isolation

NH fuse switch disconnectors combine manual circuit switching and isolation with the overcurrent protection provided by NH fuse links. The Wöhner 33203 allows high-current electrical circuits to be disconnected for servicing while helping protect cables and downstream equipment against overloads and short circuits.

Its robust panel-mounted construction and M10 screw terminals provide dependable conductor retention in demanding installations. The correct fuse-link rating, conductor size and terminal tightening torque should always be selected in accordance with the applicable Wöhner installation documentation.

Typical Applications

  • Industrial switchboards and distribution boards.
  • Motor control centres.
  • Main power distribution panels.
  • Machine-building and OEM electrical equipment.
  • Commercial and industrial electrical installations.
  • High-current circuit protection and isolation.

Technical Specifications

Current 600 A
Manufacturer Wöhner
Series QUADRON® Panel
Model 33203
Product type NH fuse switch disconnector
Fuse size NH 2
Rated current 400 A
Rated operational voltage Up to 690 V AC
Connection type M10 screw terminals
Number of poles 3
Mounting type Panel / mounting-plate installation
Fuse-link standard IEC / HD 60269-2
Switchgear standards IEC 60947-1 and IEC 60947-3
Manufacturer article number 33203
Application Industrial low-voltage power distribution

Frequently Asked Questions

What is the Wöhner 33203 used for?

The Wöhner 33203 is used for switching, isolating and protecting high-current low-voltage circuits with compatible NH fuse links.

Which fuse size is compatible with the Wöhner 33203?

The fuse switch disconnector is designed for compatible NH size 2 fuse links.

What is the rated current of the Wöhner 33203?

The Wöhner 33203 has a rated current of 400 A.

What conductor connection does the unit use?

The unit uses robust M10 screw terminals for secure high-current conductor termination.

Where is the Wöhner 33203 normally installed?

It is typically mounted on a plate inside industrial switchboards, main distribution panels and motor control centres.

Trusted by Electrical Professionals Worldwide

Wöhner QUADRON® fuse switch disconnectors are widely used by panel builders and electrical engineers to deliver safe isolation, dependable fuse protection and reliable high-current power distribution.

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