Wöhner 01720 D02 gauge ring for 25 A fuse systems. Yellow E18 gauge ring manufactured to IEC 60269 standards for safe and reliable D0 fuse installations.
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The Wöhner 01720 is a precision-engineered D02 gauge ring (E18) designed for use in D0 fuse systems to ensure only the correct fuse rating can be installed. Manufactured by Wöhner, a globally recognised specialist in low-voltage power distribution technology, this gauge ring improves electrical safety by preventing incorrectly rated fuse links from being fitted.
Manufactured in accordance with IEC 60269 standards, the Wöhner 01720 is colour coded yellow to identify a 25 A rating. It provides a reliable mechanical keying system that protects electrical installations against incorrect fuse selection, helping maintain system integrity and regulatory compliance.
Its robust halogen-free construction makes it suitable for industrial switchboards, electrical distribution panels and control equipment using D02 fuse bases. The compact design allows quick installation while providing dependable long-term performance in demanding industrial environments.
Key Advantages
Designed specifically for D02 (E18) fuse systems.
25 A rated gauge ring with yellow identification.
Prevents incorrect fuse ratings from being installed.
Manufactured in accordance with IEC 60269 standards.
Halogen-free construction for improved environmental and operational safety.
Suitable for industrial, commercial and OEM electrical installations.
Key Features
Genuine Wöhner accessory.
Part number 01720.
D02 / E18 gauge ring.
25 A rated current.
Yellow 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 provide a simple but essential mechanical safeguard within D0 fuse systems by ensuring that only correctly rated fuse links can be installed. This reduces the risk of over-fusing electrical circuits and helps maintain safe, reliable operation of industrial power distribution systems.
The Wöhner 01720 is widely used by switchgear manufacturers, panel builders and maintenance engineers who require 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
Current
25 A
Manufacturer
Wöhner
Part number
01720
Product type
D02 gauge ring
Fuse size
D02 / E18
Rated current
25 A
Colour
Yellow
Standards
IEC 60269-1, IEC 60269-3
Material
Halogen-free
EAN
4021267017200
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 01720 used for?
It is a D02 gauge ring that ensures only the correct 25 A D0 fuse link can be installed in compatible fuse bases.
What current rating does this gauge ring support?
The Wöhner 01720 is designed for 25 A D02 fuse applications.
What does the yellow colour indicate?
Yellow is the standard identification colour for a 25 A D02 gauge ring.
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 in compatible D02 fuse holders and fuse bases within industrial and commercial electrical distribution systems.
Trusted for Safe Electrical Distribution
Wöhner fuse accessories are trusted by switchgear manufacturers, panel builders and electrical engineers worldwide for reliable circuit protection and compliance with international electrical standards.
Current
25 A
Manufacturer
Wöhner
Part number
01720
Product type
D02 gauge ring
Fuse size
D02 / E18
Rated current
25 A
Colour
Yellow
Standards
IEC 60269-1, IEC 60269-3
Material
Halogen-free
EAN
4021267017200
Pack quantity
50
Typical application
D0 fuse systems
Installation
Screw-in gauge ring for D02 fuse bases
HS Code
85361050
Country of Manufacture
Germany
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
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Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...