Carrier FS-FLSR15ID Time Delay Fuse 600V 15A Class RK5

Product Description

The CARRIER FS-FLSR15ID is a 600-volt, 15-amp time-delay fuse rated Class RK5, designed for use in HVAC equipment and related electrical systems. Time-delay fuses of this class tolerate short-duration inrush currents common during motor startup while still providing reliable overcurrent protection under sustained fault conditions. Class RK5 construction delivers a high interrupting rating, making this fuse appropriate for commercial and residential HVAC applications where branch-circuit protection is required. Licensed electricians and HVAC technicians are the primary installers of this component.

This fuse is suited for use in equipment panels, disconnect boxes, and load-center applications where a 600-volt, 15-amp Class RK5 time-delay fuse is specified. It is commonly installed on branch circuits protecting compressor motors, air handlers, and other motor-driven HVAC loads that draw elevated inrush current at startup. The Class RK5 rating means this fuse fits only RK5-rated fuseholders, which prevents substitution with lower-rated fuse types.

Key Features

• 600-volt voltage rating suitable for single-phase and three-phase branch circuits
• 15-amp current rating with time-delay action to ride through motor inrush
• Class RK5 rejection style prevents installation in non-RK5 fuseholders
• High interrupting capacity for reliable fault clearing under overcurrent conditions
• Appropriate for HVAC disconnect and branch-circuit protection applications

Compatibility

Designed as an OEM-style replacement fuse for CARRIER equipment requiring a 600-volt 15-amp Class RK5 time-delay fuse in a standard RK5 fuseholder. The alternate part reference FLSR015.TXID appears in the source data and may be referenced in equipment documentation.

Installation Notes

Installation of this fuse must be performed by a qualified electrician or licensed HVAC technician in accordance with the National Electrical Code (NEC) and all applicable local codes. Always shut off and lock out the disconnect or main breaker supplying the circuit before removing or installing a fuse. Verify the replacement fuse matches the voltage, amperage, and class rating specified on the equipment nameplate before installation. Never replace a fuse with a higher-rated unit to resolve nuisance trips, as this defeats overcurrent protection.

Technical Specifications

• Voltage Rating: 600 volts
• Amperage Rating: 15 amps
• Fuse Class: RK5
• Fuse Type: Time Delay

Standard Information

• Brand: CARRIER
• Manufacturer Part Number: FS-FLSR15ID