Cooper Bussmann FNQ-R-30 30A Cc Time Delay Cartridge Fuse

Product Description

The COOPER BUSSMANN FNQ-R-30 is a Class CC time delay cartridge fuse rated at 30 amps, designed for general-purpose overcurrent protection in low-voltage control circuits. It delivers a 200 kA interrupting rating at AC (RMS), making it suitable for applications where high fault-current capacity is required. The cartridge body measures 10.3 mm in diameter and 1.5 inches in overall length. Its CC-class rejection feature prevents substitution with lower-rated fuses, maintaining circuit protection integrity. Licensed electricians and HVAC technicians install this fuse in fuse holders rated for Class CC devices.

This fuse is commonly used in motor control circuits, HVAC control panels, and industrial control equipment where time delay characteristics are needed to ride through normal inrush currents without nuisance tripping. The time delay design accommodates temporary overloads typical of motor starting loads while still responding quickly to sustained fault conditions. It fits standard Class CC fuse holders and is appropriate for both residential and light commercial control circuit applications.

Key Features

• 30-amp rating with time delay fuse timing for motor and control circuit inrush tolerance
• 200 kA interrupting rating at AC (RMS) for high fault-current environments
• Class CC rejection body prevents installation of lower-rated or non-CC fuses
• Compact cartridge form factor: 10.3 mm diameter, 1.5 inches overall length
• UL Listed 248-4 Class CC, CSA Class CC certified, CE Certified, and RoHS Compliant
• Mounts in standard Class CC fuse holders

Compatibility

Designed for use in Class CC fuse holders and panelboards that accept 10.3 mm diameter cartridge fuses with CC-class rejection features. Suitable for general-purpose control circuit overcurrent protection in HVAC, motor control, and industrial panel applications.

Installation Notes

Installation should be performed by a qualified electrician in accordance with applicable NEC requirements. De-energize the circuit and verify zero voltage with a meter before replacing the fuse. Confirm the fuse holder is rated for Class CC fuses and sized for the 30-amp rating before installation. Never use a fuse with a lower interrupting rating than the available fault current at the point of installation.