Cooper Bussmann BP/FRN-R-20 Cartridge Fuse 20A 250V 2 Pack

Product Description

The COOPER BUSSMANN BP/FRN-R-20 is a Type FRN-R time-delay cartridge fuse rated at 20 amps and 250 volts. Sold in a 2-pack carded format, this Fusetron-series fuse is designed to protect motors and other inductive loads from overcurrent damage while tolerating normal motor startup inrush current without nuisance tripping. The time-delay characteristic makes it well suited for motor branch circuit protection in HVAC, refrigeration, and light industrial applications. The fuse body measures 2.375 inches in length, 1.375 inches in width, and 0.25 inches in height. Licensed electricians and HVAC technicians are the primary installers of this component.

This fuse is commonly used in residential and light commercial HVAC systems, refrigeration equipment, air handlers, condensing units, and motor control panels where a 250-volt, 20-amp dual-element time-delay fuse is specified. The Type FRN-R designation identifies it as a Class RK5 rejection fuse, which fits rejection-style fuse holders that prevent substitution of lower-rated fuse classes. It is packaged in a retail-style carded 2-pack for convenient field replacement.

Key Features

• 20-amp, 250-volt time-delay dual-element design tolerates motor startup inrush current
• Type FRN-R Class RK5 rejection-style body prevents misapplication in rejection holders
• Fusetron time-delay series for motor and transformer branch circuit protection
• Compact cartridge form factor: 2.375 inches x 1.375 inches x 0.25 inches
• Sold as a carded 2-pack for convenient replacement stock

Compatibility

Designed as an OEM-style replacement cartridge fuse for use in rejection-style fuse holders and fused disconnects rated for Class RK5 or RK1 fuses at 250 volts and 20 amps.

Installation Notes

This fuse is installed by licensed electricians or qualified HVAC technicians. Always disconnect and lock out power to the equipment before replacing a fuse. Verify that the replacement fuse matches the amperage, voltage, and fuse class specified on the equipment nameplate or wiring diagram. Follow applicable NEC requirements for motor branch circuit and short-circuit protection when selecting and installing overcurrent devices.