Cooper Bussmann FRN-R-60 60A 250V Time Delay Cartridge Fuse

Product Description

The COOPER BUSSMANN FRN-R-60 is a 60-amp, 250-volt Class RK5 time-delay cartridge fuse in the Fusetron FRN-R series. It is designed to provide dual-element, time-delay overcurrent protection, allowing temporary motor inrush currents to pass without nuisance tripping while still responding quickly to sustained overloads and short circuits. The time-delay characteristic makes this fuse well-suited for protecting motors, transformers, and other inductive loads where startup current spikes are expected. Licensed electricians and HVAC technicians are the primary installers. The package quantity is 10 per box.

This fuse is commonly used in residential and commercial HVAC equipment, motor control circuits, and industrial panels where Class RK5 rejection-style fuses are specified. The FRN-R series fits standard fuse holders and disconnect switches that accept RK5 rejection-blade cartridge fuses rated up to 250 volts. It is a widely specified fuse type for single-phase and three-phase motor branch circuits requiring time-delay protection under NEC guidelines.

Key Features

• 60-amp continuous current rating with time-delay dual-element design
• 250-volt AC rating suitable for single-phase and three-phase circuits up to 250V
• Class RK5 rejection-style cartridge form factor prevents substitution of lower-rated fuse classes
• Fusetron time-delay characteristic handles motor inrush without nuisance opening
• Sold in a boxed pack of 10 units

Compatibility

Designed as an OEM-style replacement for Class RK5 cartridge fuse applications in residential and commercial HVAC disconnect switches, motor control centers, and fusible panels rated for 250 volts AC.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC Article 240 and applicable local codes. Disconnect and lock out all power to the circuit before replacing any fuse. Verify the replacement fuse amperage and voltage rating match the circuit requirements and the label on the fuse holder. Never install a fuse with a higher amperage rating than the circuit or equipment manufacturer specifies.