Cooper Bussmann GMA-800-R Cartridge Fast-acting Fuse 0.8A

Product Description

The COOPER BUSSMANN GMA-800-R is a glass cartridge fast-acting fuse rated at 0.8 amps, designed for overcurrent protection in low-current electronic and electrical circuits. Built to mini fuse dimensions — 20 mm overall length and 5 mm diameter — this fuse opens rapidly on fault conditions to protect sensitive downstream components. Its glass body allows visual inspection of the element without specialized tools. An interrupting rating of 10,000 amps at 125 volts and 35 amps at 250 volts gives it a defined fault-clearing envelope suited to instrumentation, control circuits, and light electronic equipment. Licensed electricians and electronics technicians are the typical installers.

This fuse is suited to residential and commercial control panels, instrumentation boards, HVAC control circuits, and low-voltage electronic assemblies where a fast-acting response is required to protect sensitive components from sustained overcurrent. The mini cartridge form factor fits standard 5 mm x 20 mm fuse holders found widely across control and instrumentation equipment. Applications include circuit boards, test equipment, and auxiliary control wiring where precise, rapid overcurrent interruption is critical.

Key Features

• Fast-acting fuse timing for immediate response to overcurrent conditions
• Glass body construction enables visual element inspection without removal
• Interrupting rating of 10,000 amps at 125 volts for defined fault-clearing capacity
• Mini cartridge form factor: 5 mm diameter by 20 mm overall length
• RoHS compliant and UL Listed; also certified to CSA and UL/CSA 248-14 standards

Compatibility

Designed as an OEM-style replacement for mini glass cartridge fuses in standard 5 mm x 20 mm fuse holders used across control, instrumentation, and low-voltage electronic applications.

Installation Notes

Installation should be performed by a qualified electrician or electronics technician. De-energize and lockout/tagout the circuit before replacing any fuse. Confirm the replacement fuse amperage and voltage rating match the circuit requirements before insertion. Never substitute a higher-amperage fuse in place of the specified rating.