MERSEN FUSE 1051 CP GLB 20.127 80 R084770

Why Choose the Mersen R084770 High-Speed Cylindrical Fuse?

The Mersen R084770, also identified as FR20GB10C80P, is a high-performance high-speed cylindrical fuse designed to protect sensitive power electronics and semiconductor equipment against damaging overcurrent and short-circuit conditions. Its ultra-rapid operating characteristics help limit fault energy before it can cause extensive damage to critical electrical components.

Featuring a gLB operating class, the R084770 provides dependable full-range protection for circuits containing semiconductor devices. Its robust cylindrical construction supports reliable operation in demanding industrial environments, while the integrated striker provides a clear mechanical indication when the fuse has operated.

With a rated current of 80 A, a maximum operating voltage of 1000 V AC and a compact 20 × 127 mm body, the Mersen R084770 is suitable for industrial drives, power conversion equipment, rectifiers and other installations requiring fast and effective semiconductor protection.

Key Advantages

• Ultra-rapid high-speed fuse for semiconductor protection.
• 80 A rated current for industrial power circuits.
• 1000 V AC voltage rating for high-voltage equipment.
• gLB utilisation category for dependable full-range protection.
• Integrated striker provides mechanical fuse operation indication.
• Compact cylindrical format simplifies installation in compatible fuse holders.

Key Features

• Mersen high-speed fuse technology.
• Manufacturer reference: R084770.
• Alternative reference: FR20GB10C80P.
• Rated current: 80 A.
• Rated voltage: 1000 V AC.
• Fuse size: 20 × 127 mm.
• Operating class: gLB.
• Striker-equipped cylindrical fuse construction.

Reliable Protection for Semiconductor Equipment

High-speed fuses are engineered to interrupt fault currents more rapidly than conventional industrial fuses. This reduces the amount of thermal energy passed into sensitive semiconductor components, helping protect rectifiers, thyristors, diodes, power modules and associated electronic equipment.

The Mersen R084770 combines ultra-rapid operation with a high voltage rating and compact cylindrical construction. It is therefore well suited to industrial systems where dependable fault interruption, low let-through energy and clear fuse status indication are essential.

Typical Applications

• Variable speed drives and motor control equipment.
• Industrial rectifiers and inverters.
• Power conversion and frequency conversion systems.
• Uninterruptible power supplies.
• Semiconductor switching equipment.
• Industrial control panels and power distribution systems.