Cooper Bussmann BP/FRN-R-25 Cartridge Fuse 25A 250V 2 Pack

Product Description

The COOPER BUSSMANN BP/FRN-R-25 is a 25-amp, 250-volt Type FRN-R time-delay cartridge fuse sold in a 2-pack carded format. The Fusetron time-delay design allows the fuse to tolerate brief, harmless inrush currents while still providing reliable overcurrent protection during sustained fault conditions. At 2.375 inches long and 1.375 inches wide, this fuse fits standard Class RK5 fuse holders. It is a direct-install component suited for licensed electricians and HVAC technicians working on motor-load circuits, compressor circuits, and general-purpose branch circuit protection.

This fuse is commonly used in residential and light commercial applications where motor starting inrush must be accommodated without nuisance blowing. Typical installations include HVAC compressor disconnect blocks, condensing unit fused disconnects, and industrial motor branch circuits rated at 250 volts or below. The time-delay characteristic makes it appropriate for loads with high locked-rotor amperage relative to their running amperage. The carded 2-pack format is practical for service technicians carrying spare fuses in a service vehicle.

Key Features

• 25-amp continuous current rating for motor and general-purpose branch circuit protection
• 250-volt AC rating suitable for single-phase residential and light commercial circuits
• Fusetron time-delay design tolerates motor inrush without nuisance opening
• Type FRN-R form factor fits Class RK5 fuse holders
• Compact dimensions: 2.375 inches long, 1.375 inches wide, 0.25 inches high
• Carded 2-pack format convenient for field service and stocking

Compatibility

Designed for use in Class RK5 fuse holders and fused disconnect switches rated for Type FRN-R cartridge fuses at 250 volts and 25 amps.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lock out the disconnect or panel before removing or installing fuses. Verify that the fuse holder is rated for Class RK5 or FRN-R fuses and that the circuit voltage and ampacity match the fuse rating. Never substitute a higher-amp fuse to correct a nuisance-blowing condition without first diagnosing the underlying fault.