01721 Wohner D02 gauge ring 35 A / 40 A

01721 Wohner D02 gauge ring 35 A / 40 A

Wöhner 01721 D02 gauge ring for 35 A and 40 A fuse systems. Black E18 gauge ring manufactured to IEC 60269 standards for safe and reliable D0 fuse installations.

SKU: 01721Alt SKU: 01721000MPN: 01721000
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Sold in packs of 50

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Why Choose the Wöhner 01721 D02 Gauge Ring 35 A / 40 A?

The Wöhner 01721 is a high-quality D02 gauge ring (E18) designed for use with D0 fuse systems to ensure only the correct fuse rating can be installed. Manufactured by Wöhner, a leading manufacturer of low-voltage power distribution components, this gauge ring helps prevent incorrectly rated fuse links from being fitted, improving both electrical safety and system reliability.

Manufactured in accordance with IEC 60269 standards, the Wöhner 01721 is colour coded black and is suitable for 35 A and 40 A D02 fuse applications. It provides a reliable mechanical keying solution that prevents oversized or incompatible fuse links from being installed, helping maintain compliance with electrical installation standards.

Its durable halogen-free construction makes it ideal for industrial switchboards, electrical distribution panels and machine control equipment using D02 fuse bases. The compact design enables quick installation while delivering dependable long-term performance in demanding industrial environments.

Key Advantages

  • Designed specifically for D02 (E18) fuse systems.
  • Suitable for 35 A and 40 A fuse applications.
  • Black colour identification for easy recognition.
  • Prevents incorrect fuse ratings from being installed.
  • Manufactured in accordance with IEC 60269 standards.
  • Halogen-free construction for improved operational safety.

Key Features

  • Genuine Wöhner accessory.
  • Part number 01721.
  • D02 / E18 gauge ring.
  • 35 A / 40 A rated application.
  • Black colour identification.
  • Halogen-free material.
  • Precision manufactured for secure installation.
  • Compatible with D02 fuse holders and fuse bases.

Reliable Protection for D0 Fuse Systems

Gauge rings are an essential safety component within D0 fuse systems, mechanically preventing the installation of incorrectly rated fuse links. This helps protect electrical circuits against over-fusing while ensuring safe and compliant operation of industrial and commercial electrical installations.

The Wöhner 01721 is widely used by switchgear manufacturers, panel builders and maintenance engineers requiring dependable fuse accessories manufactured to recognised international standards.

Typical Applications

  • Industrial power distribution panels.
  • Electrical switchboards.
  • Commercial distribution boards.
  • Machine control panels.
  • OEM electrical equipment.
  • Maintenance and replacement of D0 fuse systems.

Technical Specifications

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Current 35 A
Manufacturer Wöhner
Part number 01721
Product type D02 gauge ring
Fuse size D02 / E18
Rated current 35 A (suitable for 35 A / 40 A applications)
Colour Black
Standards IEC 60269-1, IEC 60269-3
Material Halogen-free
EAN 4021267017217
Pack quantity 50
Typical application D0 fuse systems
Installation Screw-in gauge ring for D02 fuse bases
HS Code 85361050
Country of Manufacture Germany

Frequently Asked Questions

What is the Wöhner 01721 used for?

It is a D02 gauge ring designed to ensure only the correct 35 A or 40 A D0 fuse link can be installed in compatible fuse bases.

What current ratings does this gauge ring support?

The Wöhner 01721 is designed for 35 A and 40 A D02 fuse applications.

What does the black colour indicate?

Black is the standard identification colour used for 35 A / 40 A D02 gauge rings.

Is this product compliant with IEC standards?

Yes. It is manufactured in accordance with IEC 60269-1 and IEC 60269-3 standards.

Where is this gauge ring typically installed?

It is installed within compatible D02 fuse holders and fuse bases used in industrial and commercial electrical distribution systems.

Trusted for Safe Electrical Distribution

Wöhner fuse accessories are trusted worldwide by panel builders, switchgear manufacturers and electrical engineers for reliable circuit protection and compliance with international electrical standards.