MERSEN FUSE DII-SCHKAPPRFLOCH02071.000000 02071.000000

MERSEN FUSE DII-SCHKAPPRFLOCH02071.000000 02071.000000

Mersen L201720 DII Diazed fuse screw cap with a plastic insulating body and integrated testing hole, rated at 25 A and 500 V AC/DC.

SKU: L201720Alt SKU: 02071.000000MPN: L201720
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List Price £4.43 ex VAT
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Manufacturer Lead Time

Sold in packs of 20

£2.66

Why Choose the Mersen L201720 DII Screw Cap?

The Mersen L201720 is a durable DII Diazed fuse screw cap designed to secure a compatible D fuse link within a D-system fuse base. Manufactured with a robust plastic insulating body, it provides dependable mechanical retention and supports reliable operation in low-voltage electrical distribution systems.

This screw cap features an integrated testing hole, allowing authorised technicians to perform electrical checks without completely dismantling the fuse assembly. Its lightweight plastic construction combines effective insulation with convenient handling during installation, inspection and fuse replacement.

With a rated current of 25 A and a voltage rating of 500 V AC/DC, the L201720 is designed for compatible DII Diazed fuse systems. Its standardised design makes it a practical replacement component for distribution boards, industrial switchgear and electrical control panels.

Key Advantages

  • Designed for DII Diazed fuse systems.
  • 25 A rated current for compatible fuse assemblies.
  • 500 V AC/DC rated voltage for low-voltage installations.
  • Integrated testing hole supports convenient electrical inspection.
  • Lightweight plastic body provides effective electrical insulation.
  • Manufactured by Mersen for dependable long-term performance.

Key Features

  • Mersen D-system screw cap series.
  • Catalogue number: 02071.000000.
  • DII fuse size compatibility.
  • 25 A rated current.
  • 500 V AC and 500 V DC rated voltage.
  • Plastic insulating body.
  • Integrated testing hole.
  • RoHS-compliant construction.

Secure Installation for DII Fuse Systems

D-system screw caps are used to hold Diazed fuse links securely within compatible fuse bases. The Mersen L201720 provides the mechanical retention required to maintain the fuse assembly while allowing straightforward access when inspection or replacement is necessary.

Its plastic insulating body supports safe handling and dependable electrical isolation, while the integrated testing hole allows technicians to check circuit conditions more efficiently. These features make the L201720 a practical accessory for established DII fuse protection systems.

Typical Applications

  • Electrical distribution boards.
  • Industrial switchgear assemblies.
  • Commercial electrical installations.
  • Machine control panels.
  • Low-voltage DII 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 DII
Current 25 A
Manufacturer Mersen
Series D-system Screw Caps
Model L201720
Catalogue number 02071.000000
Product type Diazed fuse screw cap
Fuse size DII
Thread size E27
Rated current 25 A
Rated AC voltage 500 V AC
Rated DC voltage 500 V DC
Suitable current type AC/DC
Body / insulating material Plastic
Design Integrated testing hole
Product weight approx. 0.0274 kg
EAN / UPC 4086500014248
Sell pack quantity 20
Sell pack weight approx. 0.547 kg
Sell pack dimensions (W × L × H) approx. 90 × 72 × 172 mm
RoHS compliant Yes
HS Code 85361050

Frequently Asked Questions

What is the Mersen L201720 used for?

The L201720 is used to secure a compatible DII 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 DII Diazed fuse systems.

What is the current rating of the L201720?

The Mersen L201720 has a rated current of 25 A.

What voltage can this screw cap support?

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

What is the purpose of the testing hole?

The testing hole allows authorised technicians to perform electrical checks without fully removing or dismantling the fuse cap assembly.

Trusted by Electrical Professionals Worldwide

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