Cooper Bussmann AGC-3/4-R Cartridge Fast-acting Fuse 0.75A

Product Description

The COOPER BUSSMANN AGC-3/4-R is a glass-body cartridge fuse rated at 0.75 amps with fast-acting response characteristics. Measuring 1.25 inches in overall length and 0.25 inches in diameter, it fits standard AGC-style fuse holders commonly found in control panels, low-voltage circuits, HVAC control boards, and light electrical equipment. The fast-acting design responds immediately to overcurrent events without intentional time delay, making it appropriate for circuits that require tight protection against short-circuit conditions. Interrupting ratings are 10,000 amps at 125 volts and 35 amps at 250 volts. Licensed electricians and HVAC technicians are the primary installers of this class of fuse.

This fuse is suited for residential and light commercial applications where AGC glass cartridge fuses protect sensitive control circuitry. Typical installations include HVAC control boards, instrumentation panels, motor control equipment, and other low-current circuits requiring fast overcurrent protection. The 0.75 amp rating targets circuits with low steady-state current draw where nuisance tripping from inrush current is not a concern. Supplied individually, this fuse is ordered in multiples of five.

Key Features

• Fast-acting response for immediate overcurrent protection with no intentional time delay
• Glass body construction allows visual inspection of the fuse element without removal
• 0.75 amp rating suited for sensitive low-current control circuits
• Interrupting rating of 10,000 amps at 125 volts and 35 amps at 250 volts
• Standard AGC cartridge dimensions: 1.25 inches length, 0.25 inches diameter
• RoHS compliant; UL Listed and CSA Certified

Compatibility

Designed as an OEM-style replacement for standard AGC-style glass cartridge fuse holders rated for the specified voltage and amperage parameters.

Installation Notes

Installation and replacement of fuses in energized panels must be performed by a qualified electrician or licensed HVAC technician in accordance with NEC requirements. Always de-energize and lock out the circuit before replacing a fuse. Verify that the replacement fuse matches the amperage and voltage rating of the original. Never substitute a higher-rated fuse to bypass a tripping condition — locate and correct the fault first.