Carrier FS-FLSR60 Class RK5 Time Delay Fuse 60A 600V

Product Description

The CARRIER FS-FLSR60 is a Class RK5 time-delay fuse rated at 60 amps and 600 volts. Time-delay fuses in this class are designed to withstand temporary inrush currents during motor startup without nuisance tripping, while still providing reliable overcurrent protection under sustained fault conditions. The RK5 classification indicates a rejection-style fuse body that prevents installation in non-RK5 fuse holders, adding an extra layer of circuit protection integrity. Licensed electricians and HVAC technicians install this fuse type in equipment disconnect boxes, load centers, and control panels serving compressors and fan motors.

This fuse is suited for residential and light commercial HVAC applications where motor-load circuits require dependable short-circuit and overload protection. Typical installations include outdoor condensing unit disconnects, air handler control circuits, and packaged rooftop unit electrical panels. The 600-volt rating makes it compatible with both standard 120/240-volt single-phase and 277/480-volt three-phase distribution systems commonly found in commercial equipment.

Key Features

• Class RK5 rejection-style body prevents installation in incorrect fuse holders
• Time-delay design tolerates motor inrush current without nuisance tripping
• 60-amp continuous current rating for motor-load branch circuit protection
• 600-volt rating supports single-phase and three-phase distribution systems
• Provides dual-element overcurrent protection against both short circuits and sustained overloads

Compatibility

Designed as an OEM-style replacement fuse for Class RK5 fuse holders and disconnect switches rated for 60 amps at 600 volts in HVAC and general electrical equipment.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit at the upstream disconnect or panel before removing or installing a fuse. Verify the replacement fuse amp and voltage ratings match the equipment nameplate before installation. Never substitute a fuse of a higher amp rating than the circuit or equipment manufacturer specifies.

Technical Specifications

• Amperage: 60 amps
• Voltage Rating: 600 volts
• Fuse Class: RK5
• Fuse Type: Time Delay

Standard Information

• Brand: CARRIER
• Manufacturer Part Number: FS-FLSR60