Cooper Bussmann GDB-500MA Cartridge Fast-acting Fuse 0.5A

Product Description

The COOPER BUSSMANN GDB-500MA is a miniature glass cartridge fast-acting fuse rated at 0.5 amps. It measures 20 mm in overall length with a 5 mm body diameter and is built to IEC 60127-2 standards for low-voltage overcurrent protection in electronic and instrumentation circuits. This fuse opens rapidly on overload, limiting damage to sensitive downstream components. It is installed by electricians, electronics technicians, and HVAC controls specialists wherever compact panel-mount or PCB-level fuse protection is required.

This fuse is suited for residential and commercial control panels, instrumentation boards, low-voltage HVAC control circuits, and industrial electronics where a 20 mm form factor is specified. The glass body allows visual inspection of the fuse element without removal, reducing diagnostic time during service calls. Its fast-acting timing characteristic makes it appropriate for circuits without high inrush loads, where nuisance trips are not a concern.

Key Features

• Fast-acting fuse timing for immediate overcurrent response
• Glass cartridge body enables visual fuse-element inspection
• 0.5 amp rating suitable for low-current control and instrumentation circuits
• Compact 20 mm x 5 mm form factor fits standard miniature fuse holders
• Meets IEC 60127-2, cURus, CE, CCC, RoHS, and UL Recognized (Guide JDYX2, File E19180) requirements

Compatibility

Designed as an OEM-style replacement for miniature 20 mm x 5 mm glass cartridge fast-acting fuse positions in low-voltage control and instrumentation equipment.

Installation Notes

Installation should be performed by a qualified electrician or controls technician. Always de-energize the circuit and verify zero voltage with a meter before removing or installing a fuse. Use an appropriate fuse puller for 5 mm diameter cartridge fuses to avoid glass breakage. Confirm the replacement fuse rating matches the circuit design before restoring power.