Cooper Bussmann FNQ-2 Cartridge Time Delay Fuse 2A 500V

Product Description

The COOPER BUSSMANN FNQ-2 is a cartridge-style, time-delay fuse rated at 2 amps and 500 volts AC, with a 10 kA interrupting rating. Built with a fiber body and finished in orange, it is designed for general-purpose overcurrent protection in branch circuits, control panels, and equipment requiring time-delay characteristics to ride through normal inrush currents. Licensed electricians and control panel technicians install this fuse type in fuse holders across light commercial and industrial applications where compact cartridge fuses are specified.

This fuse is suited for use in control circuits, motor branch circuits, and other applications where a time-delay response is needed to distinguish between harmless transient inrush and a true fault condition. The 500-volt rating and 10 kA interrupt capacity make it appropriate for low-voltage control wiring in commercial HVAC equipment, industrial machinery, and similar electrical distribution equipment. Its 1.5-inch overall length and 10.3 mm diameter fit standard midget fuse holders designed for this form factor.

Key Features

• 2-amp time-delay rating handles inrush without nuisance tripping
• 500-volt AC rating with 10 kA interrupting capacity
• Fiber cartridge body construction
• 1.5-inch overall length, 10.3 mm diameter — fits standard midget fuse holders
• Orange color coding for quick visual identification
• CE Certified, CSA C22.2 No.248.14, UL Listed 248-14, and RoHS Compliant

Compatibility

Designed as an OEM-style replacement for midget cartridge time-delay fuses installed in standard fuse holders accepting the 10.3 mm diameter, 1.5-inch cartridge form factor.

Installation Notes

Installation should be performed by a qualified electrician in accordance with applicable NEC requirements. Always de-energize and lock out the circuit before removing or inserting the fuse. Use the correct fuse puller tool to avoid contact with live conductors and to prevent damage to the fiber body. Verify holder ratings match or exceed the fuse voltage and ampere ratings before installation.