Cooper Bussmann GDA-6.3A Cartridge Fast-acting Fuse 6.3A

Product Description

The COOPER BUSSMANN GDA-6.3A is a ceramic cartridge fast-acting fuse rated at 6.3 amps, built to the IEC 60127-2 mini fuse standard. It measures 20 mm in overall length and 5 mm in diameter, fitting the widely used 5x20 mm fuse format common in control circuits, instrumentation, and light commercial equipment. The ceramic body provides superior heat dissipation and burst containment compared to glass alternatives, making it a reliable choice for protecting sensitive electronic circuits where rapid fault interruption is critical. Licensed electricians, HVAC controls technicians, and electronics service professionals are the primary installers.

This fuse is suited for applications requiring fast-acting overcurrent protection in low-voltage control boards, instrumentation panels, and electronic equipment using the 5x20 mm cartridge format. Its fast-acting timing means it will open quickly under overload conditions, protecting downstream components from sustained fault current. The ceramic construction makes it appropriate for higher-energy fault environments where glass-body fuses may be inadequate.

Key Features

• 6.3-amp fast-acting rating for rapid overcurrent interruption in sensitive circuits
• Ceramic body construction for superior thermal and mechanical fault containment
• Standard 5x20 mm form factor (5 mm diameter, 20 mm length) for broad compatibility
• RoHS compliant construction
• Multi-standard certified: UL Recognized (JDYX2 File E19180), CSA Component Accepted (File 53787), IEC 60127-2, CCC, IMQ, and SEMKO approvals

Compatibility

Designed as a direct replacement for 5x20 mm fast-acting cartridge fuse positions in control boards, instrumentation panels, and electronic assemblies requiring a 6.3-amp, IEC 60127-2 compliant mini fuse.

Installation Notes

De-energize and lock out the equipment before removing or installing any fuse. Use a proper fuse puller rated for the fuse holder type to avoid contact with energized components. Verify the replacement fuse matches the amperage, voltage rating, and time-delay characteristics specified on the equipment label or schematic before installation. Never substitute a higher-amperage fuse or use a jumper in place of a properly rated fuse.