Why Choose the Mersen F222921 DII Screw Gauge Piece?
The Mersen F222921 is a precision-engineered DII screw gauge piece designed for use in Diazed fuse systems. As part of the established Mersen D-system ring adapter, fittings and touch protection range, it ensures that only the correct 10 A DII fuse link can be installed in a compatible fuse base.
This gauge insert provides mechanical coding inside the fuse base, helping prevent an incorrectly rated fuse link from being fitted. Correct fuse selection is essential for maintaining the intended overcurrent protection of cables, equipment and electrical installations.
With a 10 A current rating, DII fuse size compatibility and standard red identification colour, the F222921 can be quickly recognised during installation and maintenance. Its compact and robust construction makes it suitable for distribution boards, industrial switchgear and electrical control panels using D-system fuse protection.
Key Advantages
- Designed for DII Diazed fuse systems.
- 10 A rated gauge insert supports correct fuse selection.
- Red identification colour enables rapid visual recognition.
- Helps prevent installation of incorrectly rated fuse links.
- Supports safe and reliable circuit protection.
- Manufactured by Mersen for dependable long-term performance.
Key Features
- Mersen D-system ring adapter and fittings series.
- Catalogue number: 01657.010000.
- 10 A rated current.
- DII fuse size compatibility.
- Red current identification colour.
- Mechanical coding for compatible D fuse bases.
- Compact cartridge ring adapter insert design.
- RoHS-compliant construction.
Reliable Protection Through Correct Fuse Selection
Screw gauge pieces are important safety components within Diazed fuse systems. They mechanically restrict the fuse links that can be installed in a fuse base, helping prevent a higher-rated fuse from being used on a circuit requiring lower overcurrent protection.
The Mersen F222921 is specifically coded for 10 A DII fuse links. Its standardised design and red identification colour make it a practical replacement component for maintaining compatible electrical distribution equipment and industrial control systems.
Typical Applications
- Electrical distribution boards.
- Industrial switchgear assemblies.
- Commercial electrical installations.
- Machine control panels.
- DII Diazed fuse systems.
- Maintenance and refurbishment of compatible fuse bases.
