Eaton gma-1-r Glass Fuse 1 Amp 250 Volt

Product Description

The EATON gma-1-r is a fast-acting glass fuse rated at 1 amp and 250 volts, designed for low-current overcurrent protection in control circuits and electronic equipment. This fuse fits standard 5x20mm glass fuse holders and is commonly found in HVAC control panels, small appliances, and test equipment. It provides reliable circuit protection where a compact, visually inspectable fuse is required. Licensed electricians and HVAC technicians use this fuse as a direct replacement when servicing low-voltage control boards and accessory circuits.

The gma-1-r is suited for residential and light commercial applications where 5x20mm fast-acting glass fuses are specified. Typical installations include control circuit protection in HVAC units, instrumentation panels, and low-draw electronic assemblies. Its transparent glass body allows for quick visual inspection without removal, reducing diagnostic time on service calls.

Key Features

• 1 amp rated current for low-current circuit protection
• 250 volt maximum voltage rating
• Fast-acting response for sensitive electronic components
• Transparent glass body for quick visual inspection
• Compact 5x20mm form factor fits standard fuse holders

Compatibility

Designed as an OEM-style replacement glass fuse for standard 5x20mm fuse holders used in HVAC control circuits, electronic control boards, and low-current instrument panels requiring a 1 amp 250 volt fast-acting fuse.

Installation Notes

Power down and de-energize the equipment completely before replacing any fuse. Verify the replacement fuse matches the exact amperage and voltage rating of the original before installation. Use a fuse puller tool where available to avoid contact with fuse clips. Always follow NEC guidelines and the equipment manufacturer's service instructions when servicing control panels.

Technical Specifications

• Current Rating: 1 amp
• Voltage Rating: 250 volts
• Fuse Type: Fast-acting glass fuse
• Body Style: 5x20mm glass

Standard Information

• Brand: EATON
• Manufacturer Part Number: gma-1-r