Cooper Bussmann BP/FRN-R-10 Cartridge Fuse 10A 250V

Product Description

The COOPER BUSSMANN BP/FRN-R-10 is a Type FRN-R time-delay cartridge fuse rated at 10 amps and 250 volts, sold in a 2-pack carded format. It is designed for use in branch-circuit and feeder applications where inrush current tolerance is required without sacrificing overload protection. The Fusetron time-delay characteristic allows the fuse to ride through brief startup surges from motors and transformers while still opening quickly under sustained fault conditions. Electricians and HVAC technicians install this fuse type in disconnect boxes, load centers, and equipment service sections as part of standard overcurrent protection.

This fuse is suited for residential and light commercial electrical systems, particularly in applications where motor loads, compressor circuits, or transformer primaries require time-delay overcurrent protection. The cartridge form factor fits standard Class RK5 fuse holders and disconnect blocks. Each package contains two fuses, making it practical for service calls where a spare is needed on-site.

Key Features

• 10 amp rating with 250-volt AC capability
• Fusetron time-delay design handles motor inrush without nuisance opening
• Type FRN-R Class RK5 cartridge form factor
• 2-pack carded format for convenient field use
• Compact dimensions: 2.375 inches long x 1.375 inches wide x 0.25 inches high

Compatibility

Designed as a standard FRN-R Class RK5 replacement fuse for use in compatible 250-volt cartridge fuse holders and fusible disconnect switches that accept dual-element time-delay fuses.

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 circuit before replacing fuses. Verify that the fuse holder is rated for the voltage and amperage of the replacement fuse. Never substitute a fuse with a higher amperage rating than the circuit is designed to carry.