Cooper Bussmann FNQ-R-7-1/2 Cc Time Delay Fuse 7.5A

Product Description

The COOPER BUSSMANN FNQ-R-7-1/2 is a CC-class cartridge time delay fuse rated at 7.5 amps, designed for use in fuse holders that accept CC-class rejection-style fuses. The time delay characteristic allows the fuse to tolerate brief inrush currents without nuisance opening, while still providing reliable overcurrent protection under sustained fault conditions. With an overall length of 1.5 inches and a body diameter of 10.3 mm, this fuse meets the dimensional and electrical requirements of the CC class. It is installed by licensed electricians in control circuit, motor branch circuit, and supplementary protection applications.

This fuse is suited for residential, commercial, and light industrial control panel applications where CC-class fusing is specified. Typical installations include motor control centers, HVAC equipment control circuits, and other low-amperage branch circuit protection scenarios requiring a time delay fuse in a standard CC fuse holder. The rejection feature prevents substitution with non-CC-class fuses, helping maintain system integrity and code compliance.

Key Features

• CC-class rejection design prevents installation of non-compatible fuse types
• Time delay characteristic tolerates motor inrush and transformer magnetizing currents
• 7.5 amp rating for low-amperage control and branch circuit protection
• Cartridge body with 10.3 mm diameter fits standard CC fuse holders
• UL Listed 248-4 Class CC, CSA Class CC certified, CE marked, and RoHS compliant
• Compact 1.5-inch overall length for space-constrained panel installations

Compatibility

Designed for use in CC-class fuse holders accepting rejection-style cartridge fuses. The CC rejection feature ensures this fuse will only seat in holders specifically designed for the CC class, preventing misapplication.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and any applicable local codes. Always de-energize and lock out the circuit before removing or replacing fuses. Use an appropriately rated fuse puller when handling cartridge fuses to avoid contact with live components. Verify that the fuse holder is rated for CC-class rejection-type fuses before installation.