Cooper Bussmann NON-2-1/2 Cartridge Fast-acting Fuse K5

Product Description

The COOPER BUSSMANN NON-2-1/2 is a Class K5 cartridge fast-acting fuse rated at 2.5 amps, designed for general-purpose overcurrent protection in a wide range of electrical systems. At 2 inches (50.8 mm) in overall length and 14.3 mm in diameter, this fuse mounts in a standard fuse holder and provides rapid response to fault conditions. With an interrupting capacity of 50 kiloamps at AC and DC, it handles high-energy fault events safely. Electricians and maintenance technicians install this fuse in control panels, distribution boards, and equipment protection circuits where fast-acting response to overloads and short circuits is required.

This fuse is suited for residential, commercial, and light industrial electrical applications. It fits standard cartridge fuse holders designed to accept Class K5 fuses at this amperage and form factor. Its general-purpose rating makes it appropriate for branch circuit and equipment protection in low-voltage control systems, HVAC equipment, and similar installations where an NEC-compliant fast-acting fuse is specified.

Key Features

• Fast-acting fuse element provides immediate response to overloads and short circuits
• Class K5 rating suitable for general-purpose electrical protection applications
• 2.5 amp rating for low-current circuit protection
• 50 kiloamp interrupting capacity at AC and DC
• CE Certified, CSA Class 1421-01 Certified, UL 248-9 Listed, and UL Guide JDDZ File E4274 Listed
• Mounts in standard cartridge fuse holders for straightforward replacement

Compatibility

Designed as an OEM-style replacement cartridge fuse for standard fuse holders accepting Class K5 fast-acting cartridge fuses at 2.5 amps with a 2-inch overall length and 14.3 mm diameter.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lock out the circuit before removing or installing a fuse. Verify that the replacement fuse matches the amperage, class, and physical dimensions specified for the fuse holder. Do not substitute a fuse of a higher amperage rating to resolve nuisance tripping.