Cooper Bussmann NOS-8 Cartridge Fast-acting Fuse K5 8A 600V

Product Description

The COOPER BUSSMANN NOS-8 is a Class K5 cartridge fast-acting fuse rated at 8 amps and 600 volts. It is designed for general-purpose overcurrent protection in industrial and commercial electrical systems. The fuse measures 5 inches in overall length and 20.6 mm in diameter, fitting standard fuse holders for that form factor. With an interrupting rating of 50 kA at AC and DC, it provides reliable short-circuit protection in branch circuits and feeder applications. Licensed electricians and industrial maintenance technicians are the primary installers of this fuse type.

This fuse suits general-purpose branch circuit and feeder protection in commercial and light industrial panels, control panels, and equipment requiring Class K5 overcurrent protection. It is appropriate for applications where fast-acting response to overloads and short circuits is required. The fuse mounts in a standard fuse holder sized for its diameter and length, making it a straightforward replacement or new-installation component in 600-volt systems.

Key Features

• Class K5 fast-acting fuse for general-purpose overcurrent protection
• 8-amp continuous current rating at up to 600 volts AC/DC
• 50 kA interrupting rating at rated voltage
• Cartridge body, 5 inches long and 20.6 mm in diameter
• CE Certified, CSA Certified, and UL Listed to UL 248-9

Compatibility

Designed as an OEM-style replacement or new-install cartridge fuse for standard Class K5 fuse holders rated for 5-inch, 20.6 mm diameter cartridge fuses at 600 volts.

Installation Notes

Installation and replacement of branch-circuit fuses must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and verify the circuit is dead with a meter before removing or installing a fuse. Use an appropriately rated fuse puller for cartridge fuses of this size. Confirm the fuse holder is rated for Class K5 fuses at the required amperage and voltage before installing.