Cooper Bussmann FNQ-R-1-1/2 Cc Time Delay Fuse 1.5A

Product Description

The COOPER BUSSMANN FNQ-R-1-1/2 is a Class CC cartridge time delay fuse rated at 1.5 amps, designed for general-purpose overcurrent protection in control circuits and low-amperage branch circuits. It features a rejection setting that prevents substitution with non-CC class fuses, maintaining system integrity. The fuse measures 1.5 inches in overall length with a 10.3 mm body diameter, and mounts in a standard CC fuse holder. Licensed electricians and panel technicians install this component in industrial controls, HVAC equipment, and electrical distribution panels where precise, time-delay overcurrent protection is required.

This fuse is suited for residential and commercial applications where inrush currents from motors or transformers demand a time delay characteristic to avoid nuisance tripping. The CC class rejection feature ensures only properly rated fuses can be installed in compatible holders, a critical safety requirement in controlled-access panels and machine control enclosures. It is a common choice for HVAC control boards, motor starters, and low-voltage control transformers where 1.5A protection is specified.

Key Features

• 1.5 amp time delay rating handles brief inrush current without nuisance opens
• Class CC rejection feature prevents installation of non-CC class fuses in the same holder
• Cartridge body style fits standard CC fuse holders
• 200 kA interrupting capacity at AC (RMS) for high fault-current environments
• UL Listed 248-4 Class CC, CSA Class CC certified, CE certified, and RoHS compliant

Compatibility

Designed for use in standard Class CC fuse holders. The rejection-style body prevents installation in non-CC holders, ensuring correct class replacement in any CC-rated fuse block or panel mount holder.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and applicable local codes. Always de-energize and lock out the circuit before replacing a fuse. Verify the holder is rated for Class CC fuses before installation. Do not attempt to substitute a non-CC class fuse in a CC rejection holder.