Cooper Bussmann GMA-2.5-R Fast-acting Cartridge Fuse 2.5A

Product Description

The COOPER BUSSMANN GMA-2.5-R is a glass-body, cartridge-style, fast-acting mini fuse rated at 2.5 amps. It measures 20 mm in overall length and 5 mm in diameter, conforming to the standard IEC 5x20 mm cartridge fuse footprint. Fast-acting fuses like this one open quickly under overload and short-circuit conditions, providing protection for sensitive electronic components and control circuits. The glass body allows for visual inspection of the fuse element without the need for a meter. This fuse is used by licensed electricians and electronics technicians working on low-voltage control boards, instrumentation panels, and light commercial or residential equipment.

The GMA-2.5-R is suited for applications requiring precise overcurrent protection in compact control circuits. Typical installations include HVAC control boards, electronic timers, small appliance protection circuits, and light industrial instrumentation where a 5x20 mm fuse holder is present. Its fast-acting timing characteristic makes it appropriate for resistive loads and circuits where no intentional time delay is needed. The fuse carries CSA and UL listings, making it compliant for use in North American installations where certified components are required by code.

Key Features

• Fast-acting fuse element opens rapidly under overload or short-circuit conditions
• Glass body enables visual inspection of the fuse element without test equipment
• Standard 5x20 mm cartridge form factor fits widely available panel-mount and inline fuse holders
• Interrupting rating of 10000 amps at 125 volts and 100 amps at 250 volts
• UL Listed and CSA Certified for use in North American code-compliant installations
• RoHS compliant per directive 2002/95/EC

Compatibility

Designed as a direct replacement for standard 5x20 mm fast-acting cartridge fuse positions in control boards, instrumentation panels, and light commercial or residential electrical equipment requiring a 2.5-amp fast-acting fuse.

Installation Notes

Installation should be performed by a qualified electrician or electronics technician. Always de-energize and lock out the circuit before replacing a fuse. Confirm the replacement fuse amperage and interrupting rating match the original equipment specification before installation. Do not substitute a higher-amperage fuse or a slow-blow fuse where a fast-acting fuse is specified, as doing so can damage downstream components or create a fire hazard.