MERSEN FUSE 5500 CP GLJB 36.250 40 36GJB55V40

MERSEN FUSE 5500 CP GLJB 36.250 40 36GJB55V40

Mersen S078791 FR20GB10C6P high-speed cylindrical fuse rated at 6 A and 1000 V AC with gLB utilisation category and integrated striker for semiconductor protection.

SKU: S078791MPN: S078791
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List Price £146.62 ex VAT
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Why Choose the Mersen S078791 High-Speed Cylindrical Fuse?

The Mersen S078791, also known as FR20GB10C6P, is a premium high-speed cylindrical fuse designed to protect sensitive semiconductor devices and power electronic equipment from damaging overcurrent and short-circuit conditions. Manufactured by Mersen, this ultra-fast fuse provides dependable circuit protection for industrial applications where rapid fault interruption is essential.

Designed with a gLB utilisation category, the S078791 offers full-range protection for semiconductor circuits while minimising the thermal and mechanical stresses caused by fault currents. Its robust cylindrical construction and integrated striker provide both reliable performance and clear indication when the fuse has operated.

Featuring a 6 A rated current, a 1000 V AC voltage rating and a standard 20 × 127 mm body size, the Mersen S078791 is ideally suited to industrial drives, converters, UPS systems and other power electronic equipment requiring fast semiconductor protection.

Key Advantages

  • High-speed semiconductor protection fuse.
  • 6 A rated current for low-current industrial power circuits.
  • 1000 V AC voltage rating for demanding electrical applications.
  • gLB utilisation category for dependable full-range protection.
  • Integrated striker for clear fuse operation indication.
  • Compact cylindrical design for straightforward installation.

Key Features

  • Manufacturer: Mersen.
  • Manufacturer part number: S078791.
  • Alternative reference: FR20GB10C6P.
  • Rated current: 6 A.
  • Rated voltage: 1000 V AC.
  • Fuse size: 20 × 127 mm.
  • Utilisation category: gLB.
  • Integrated striker indication.

Reliable Protection for Industrial Power Electronics

High-speed semiconductor fuses are specifically engineered to interrupt fault currents before excessive thermal energy can damage sensitive electronic components. Their extremely fast response helps protect rectifiers, inverters, thyristors, IGBTs and other semiconductor devices used throughout industrial automation systems.

The Mersen S078791 combines dependable current limiting performance with compact dimensions and industrial reliability, making it an excellent choice for protecting modern power electronic installations.

Typical Applications

  • Variable speed drives.
  • Industrial inverters and converters.
  • Power supplies.
  • UPS systems.
  • Semiconductor switching equipment.
  • Industrial control panels.

Technical Specifications

Manufacturer Mersen
Model S078791
Alternative model FR20GB10C6P
Product type High-speed cylindrical fuse
Rated current 6 A
Rated voltage 1000 V AC
Utilisation category gLB
Fuse dimensions 20 × 127 mm
Body style Cylindrical
Indication system Integrated striker
Mounting Compatible cylindrical fuse holder
Application Semiconductor and power electronic protection
Device Type Fuse link
Fuse Type Cylindrical, Semiconductor
Current 6 A
Voltage 1000 V

Frequently Asked Questions

What is the Mersen S078791 used for?

The Mersen S078791 protects semiconductor devices and industrial power electronic equipment from overloads and short-circuit faults.

What is the current rating of this fuse?

The Mersen S078791 has a rated current of 6 A.

What voltage is the S078791 rated for?

The fuse is rated for operation up to 1000 V AC.

Does this fuse include a striker?

Yes. The fuse incorporates an integrated striker that provides mechanical indication after the fuse has operated.

Where is this fuse commonly used?

It is commonly installed in industrial drives, converters, UPS systems and other semiconductor-based power electronic equipment.

Trusted by Industrial Engineers Worldwide

Mersen high-speed semiconductor fuses are trusted by OEMs, machine builders and maintenance engineers worldwide to provide rapid fault protection for critical industrial power electronic equipment.

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