Cooper Bussmann FRS-R-2 RK5 Time Delay Fuse 2A 5in

Product Description

The COOPER BUSSMANN FRS-R-2 is a Class RK5 cartridge-style time delay fuse rated at 2 amps, designed for general-purpose overcurrent protection in industrial and commercial electrical systems. The time delay characteristic allows the fuse to tolerate brief inrush currents without nuisance opening, making it well suited for motor branch circuits and transformer protection applications. At 5 inches overall length and 20.6 mm diameter, the FRS-R-2 mounts in a standard fuse holder and carries a 20 kA interrupting rating at DC 200 volts RMS. It is a non-indicating, dual-element design installed by licensed electricians during panel service, equipment installation, or fuse replacement work.

The FRS-R-2 is used in residential, commercial, and light industrial electrical applications where Class RK5 fusing is specified. Its dual-element construction tolerates motor startup inrush without sacrificing short-circuit response speed. The cartridge body fits standard RK5-rated fuse holders and fusible disconnects. This fuse is commonly installed in motor control centers, HVAC equipment disconnects, and general electrical distribution panels requiring reliable time delay overcurrent protection.

Key Features

• Class RK5 time delay cartridge fuse rated at 2 amps for general-purpose overcurrent protection
• Dual-element construction tolerates temporary inrush currents while providing fast short-circuit response
• 20 kA interrupting capacity at DC 200 volts RMS for reliable fault clearing
• Non-indicating design in a standard 5-inch by 20.6 mm cartridge body
• Mounts in any compatible RK5 fuse holder or fusible disconnect block
• CE Certified, CSA C22.2 No. 248.12 Class 1422-02 File 53787 Certified, and UL Listed 248-12 Class RK5 Guide JDDZ File E4273

Compatibility

Designed as an OEM-style replacement for Class RK5 cartridge fuse positions in standard fuse holders rated for 5-inch by 20.6 mm time delay fuses.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the NEC and applicable local codes. Always de-energize and lock out the circuit before opening a fuse holder or fusible disconnect. Verify that the replacement fuse class, amperage, and voltage rating match the original specification before inserting. Do not substitute a faster-acting or higher-amperage fuse, as this may void equipment listings and create a safety hazard.