Cooper Bussmann GMC-8-R Cartridge Time Delay Fuse 8A

Product Description

The COOPER BUSSMANN GMC-8-R is a glass cartridge time delay fuse rated at 8 amps and designed for overcurrent protection in low-voltage control circuits and instrumentation applications. The time delay characteristic allows brief inrush currents to pass without nuisance tripping, making it well suited for circuits that experience normal startup surges. It measures 20 mm in overall length and 5 mm in diameter, conforming to the standard mini cartridge form factor. The glass body allows visual inspection of the fusible element without removing the fuse from its holder. Licensed electricians and electronics technicians install this fuse during panel assembly, equipment repair, or routine preventive maintenance.

This fuse is used in residential and commercial control panels, HVAC equipment control boards, instrumentation, and light industrial electronics where a 5 x 20 mm mini cartridge time delay fuse is specified. The 8A rating and time delay timing class make it appropriate for motor-start and transformer-primary circuits that draw momentary inrush current on startup. It is not intended as a fast-blow replacement where instantaneous response is required by the circuit design.

Key Features

• Time delay fusing tolerates brief inrush currents without nuisance tripping
• Glass body allows visual inspection of the fusible element in place
• Standard 5 x 20 mm mini cartridge form factor fits common panel-mount and inline fuse holders
• 200A interrupting rating at 125V for reliable fault clearing
• UL Recognized under Guide JDYX2, File E19180
• RoHS compliant construction

Compatibility

Designed as an OEM-style replacement for 5 x 20 mm mini cartridge time delay fuse positions in control panels, HVAC equipment, instrumentation, and light industrial electronics rated at 8 amps.

Installation Notes

Installation should be performed by a qualified electrician or electronics technician in accordance with applicable NEC requirements. Always de-energize and lock out the circuit before replacing a fuse. Confirm the replacement fuse rating matches the circuit overcurrent protection requirement exactly — never substitute a higher amperage or a fast-blow type where a time delay is specified. Verify the fuse holder is rated for the 5 x 20 mm cartridge form factor before installation.