Diversitech 626-hasr20 Time Delay Fuse 20A 600V RK5

Product Description

The DIVERSITECH 626-hasr20 is a Class RK5 time delay fuse rated for 20 amps and 600 volts. Time delay fuses are designed to handle brief inrush currents common during motor startup while still protecting circuits from sustained overloads and short circuits. The RK5 classification indicates a rejection-style fuse body that prevents installation in non-RK-rated fuse holders, reducing the risk of misapplication. Licensed electricians and HVAC technicians install this fuse as part of circuit protection in equipment disconnect boxes and load-side service panels.

This fuse is suited for single-phase and three-phase motor circuits in residential and light commercial HVAC systems, refrigeration equipment, and general electrical distribution applications where time delay characteristics are required. It performs in environments demanding reliable overcurrent protection without nuisance tripping on motor startup inrush. The 600-volt rating makes it appropriate for both standard 120/240-volt and 480-volt service applications.

Key Features

• 20-amp continuous current rating for motor and equipment protection circuits
• 600-volt rating supports a wide range of single-phase and three-phase applications
• Class RK5 rejection body prevents substitution into non-RK fuse holders
• Time delay design tolerates motor startup inrush without nuisance opening
• Provides protection against sustained overloads and short-circuit faults

Compatibility

Designed as an OEM-style replacement for Class RK5 time delay fuses in residential and commercial electrical disconnect and overcurrent protection applications.

Installation Notes

Installation should 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 breaker before replacing a fuse. Confirm the fuse holder is rated for Class RK5 rejection-style fuses before installation. Verify replacement fuse amperage and voltage ratings match the equipment nameplate before energizing.