MERSEN FUSE DIII-SCHRAUBKAPPE 00691.000000

MERSEN FUSE DIII-SCHRAUBKAPPE 00691.000000

Mersen F211973 DIII Diazed fuse screw cap with a porcelain body and no testing hole, rated at 63 A and 500 V AC/DC.

SKU: F211973Alt SKU: 00691.000000MPN: F211973
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Why Choose the Mersen F211973 DIII Screw Cap?

The Mersen F211973 is a high quality DIII Diazed fuse screw cap designed to securely retain compatible D fuse links within D-system fuse bases. Manufactured from durable porcelain, this screw cap provides reliable electrical insulation and dependable mechanical retention for low voltage electrical distribution systems.

Designed without a testing hole, the F211973 is ideal for installations where in-service testing access is not required. Its robust porcelain construction offers excellent thermal resistance and long service life, making it suitable for demanding industrial and commercial environments.

With a 63 A current rating, 500 V AC/DC voltage rating and compatibility with DIII fuse systems, the F211973 is an ideal replacement component for switchgear, distribution boards and machine control panels requiring dependable Diazed fuse protection.

Key Advantages

  • Designed for DIII Diazed fuse systems.
  • 63 A current rating for industrial fuse assemblies.
  • 500 V AC/DC rated voltage for low voltage installations.
  • Porcelain body provides excellent insulation and thermal resistance.
  • Design without testing hole for applications where test access is unnecessary.
  • Manufactured by Mersen for dependable long-term performance.

Key Features

  • Mersen D-system screw cap series.
  • Catalogue number: 00691.000000.
  • DIII fuse size compatibility.
  • 63 A rated current.
  • 500 V AC and 500 V DC rated voltage.
  • Porcelain insulating body.
  • Design without testing hole.
  • RoHS compliant construction.

Secure Installation for DIII Fuse Systems

D-system screw caps are designed to hold Diazed fuse links securely within compatible fuse bases. The Mersen F211973 provides reliable contact pressure while protecting the fuse assembly against mechanical stress during operation.

Its porcelain body delivers excellent electrical insulation and resistance to heat, making it suitable for industrial switchgear, commercial distribution equipment and machine control panels operating under demanding conditions.

Typical Applications

  • Electrical distribution boards.
  • Industrial switchgear assemblies.
  • Commercial electrical installations.
  • Machine control panels.
  • Low voltage DIII fuse protection systems.
  • Maintenance and refurbishment of compatible fuse bases.

Technical Specifications

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Device Type Fuse link
Fuse Type D / D0 (Neozed/Diazed)
Fuse Size DIII
Current 63 A
Manufacturer Mersen
Series D-system Screw Caps
Model F211973
Catalogue number 00691.000000
Product type Diazed fuse screw cap
Fuse size DIII
Rated current 63 A
Rated AC voltage 500 V AC
Rated DC voltage 500 V DC
Suitable current type AC/DC
Body material Porcelain
Design Without testing hole
Thread size E33
Product weight approx. 0.0649 kg
RoHS compliant Yes
HS Code 85363090

Frequently Asked Questions

What is the Mersen F211973 used for?

The F211973 is used to secure a compatible DIII Diazed fuse link within a D-system fuse base.

Which fuse size is compatible with this screw cap?

This screw cap is designed specifically for DIII Diazed fuse systems.

What is the current rating of the F211973?

The Mersen F211973 has a rated current of 63 A.

Does this screw cap include a testing hole?

No. The F211973 features a porcelain design without a testing hole.

What voltage can this screw cap support?

It is rated for electrical systems operating at up to 500 V AC or 500 V DC.

Trusted by Electrical Professionals Worldwide

Mersen D-system fuse accessories are trusted by electricians, panel builders and maintenance engineers for their robust porcelain construction, dependable compatibility and reliable performance in low voltage electrical protection systems.