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MERSEN FUSE 6,9 GRB 000 D08L 020 6,9GRB000D08L020

MERSEN FUSE 6,9 GRB 000 D08L 020 6,9GRB000D08L020

Why Choose the MERSEN FUSE 6,9 GRB 000 D08L 020 6,9GRB000D08L020?

SKU: J330173Alt SKU: 6,9GRB000D08L020MPN: J330173
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Why Choose the Mersen J330173 Protistor® High-Speed Fuse?

The Mersen J330173, catalogue reference DN000GB69V20L, is a Protistor® NH size 000 high-speed semiconductor fuse designed to provide dependable protection for power semiconductor devices in demanding industrial applications. Featuring a gRB operating characteristic, this fuse delivers both overload and short-circuit protection for sensitive equipment such as IGBTs, thyristors and power diodes.

Rated at 20 A and 690 V AC, the J330173 is manufactured in a compact NH000 square body format with DIN 80 blade terminals and a separate blown fuse trip indicator (D08L). It offers excellent current-limiting performance and a high interrupting capacity of 200 kA, helping minimise damage to valuable semiconductor equipment during fault conditions.

The J330173 is suitable for industrial drives, rectifiers, inverters, UPS systems, renewable energy equipment and other power conversion applications where reliable semiconductor protection is essential.

Key Advantages

  • Genuine Mersen Protistor® semiconductor protection fuse.
  • 20 A current rating.
  • 690 V AC rated voltage.
  • gRB full-range semiconductor protection.
  • Separate blown fuse trip indicator (D08L).
  • High 200 kA interrupting capacity.

Key Features

  • Manufacturer: Mersen
  • Item number: J330173
  • Catalogue reference: DN000GB69V20L
  • Series: Protistor®
  • NH size 000 square body fuse.
  • gRB operating class.
  • DIN 80 blade terminals.
  • Separate trip indicator (D08L).

Engineered for Semiconductor Protection

The Protistor® gRB range is specifically developed to protect modern semiconductor devices against overloads and short-circuit faults. Fast current limitation and low let-through energy help reduce stress on expensive power electronic components while improving overall system reliability.

Its NH000 design allows straightforward installation into compatible NH fuse bases used throughout industrial power distribution and power conversion systems.

Typical Applications

  • Variable frequency drives (VFDs).
  • Industrial inverters.
  • Power converters.
  • Rectifiers.
  • UPS systems.
  • Renewable energy equipment.
  • Industrial automation systems.

Technical Specifications

Manufacturer Mersen
Model J330173
Catalogue number DN000GB69V20L
Series Protistor®
Product type High-speed semiconductor fuse
Rated current 20 A
Rated voltage 690 V AC
Operating class gRB
Fuse size NH000
Terminal type DIN 80 blade contacts
Indicator Separate blown fuse trip indicator (D08L)
Interrupting capacity 200 kA at 690 V AC
Body style Square body ceramic fuse
Length 48 mm
Width 20 mm
Device Type Fuse link
Fuse Type Semiconductor
Fuse Size NH000
Current 20 A
Voltage 690 V

Frequently Asked Questions

What is the Mersen J330173 used for?

The J330173 protects power semiconductor devices including IGBTs, thyristors and power diodes used in industrial power conversion equipment.

What is the current rating of the J330173?

The fuse has a rated current of 20 A.

What voltage is the J330173 rated for?

The fuse is rated for 690 V AC.

What does the gRB operating class provide?

The gRB operating characteristic provides full-range protection against overloads and short-circuit faults for semiconductor equipment.

Does the J330173 include a blown fuse indicator?

Yes. It incorporates a D08L separate blown fuse trip indicator for rapid fault identification.

Trusted Protistor® Semiconductor Protection

Mersen Protistor® semiconductor fuses are trusted by OEMs, machine builders and industrial engineers worldwide for protecting high-value power electronic equipment in demanding industrial environments.

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