Cooper Bussmann FNQ-R-5 Time Delay Fuse 5A Cc Class

Product Description

The COOPER BUSSMANN FNQ-R-5 is a Class CC time delay cartridge fuse rated at 5 amps, designed for branch circuit and control circuit overcurrent protection in industrial and commercial electrical systems. It features a rejection design that prevents substitution with lower-rated or non-CC class fuses, maintaining system integrity. At 1-1/2 inches in length and 10.3 mm in diameter, it fits standard CC-class fuse holders. The time delay characteristic allows it to ride through harmless inrush currents while still responding quickly to sustained overcurrent faults. Licensed electricians and controls technicians are the typical installers for this component.

This fuse is suited for use in motor control centers, control panels, HVAC equipment control circuits, and other applications requiring Class CC rejection-style overcurrent protection. Its general purpose rating makes it applicable across a wide range of light industrial and commercial control circuit installations where a 5-amp, time delay fuse is specified. The CC class form factor is common in both new construction panel builds and retrofit service work.

Key Features

• Class CC rejection cartridge body prevents installation of non-CC or lower-rated fuses in the same holder
• Time delay characteristic tolerates motor or transformer inrush without nuisance opening
• 5-amp rating suitable for low-current branch and control circuit protection
• 200 kA interrupting rating at AC RMS for high fault-current environments
• UL Listed 248-4 Class CC (Guide JDDZ, File E4273) and CSA Class CC certified
• RoHS compliant and CE certified for broad application compliance

Compatibility

Designed as a direct-fit replacement for Class CC fuse holders accepting a 1-1/2-inch cartridge fuse with a 10.3 mm diameter rejection profile. Verify holder rating and amperage requirements before installation.

Installation Notes

Installation should be performed by a qualified electrician in accordance with NEC Article 240 and any applicable local codes. De-energize and lock out the circuit before removing or installing any fuse. Use an insulated fuse puller rated for the voltage and current of the circuit. Confirm the fuse holder is rated for Class CC fuses and that the replacement amperage matches the original circuit specification.