Cooper Bussmann NON-30 Cartridge Fuse Class K5 30A

Product Description

The COOPER BUSSMANN NON-30 is a Class K5 cartridge fast-acting fuse rated at 30 amps, designed for general-purpose overcurrent protection in electrical distribution systems. Measuring 2 inches in overall length and 0.563 inches in diameter, it installs into standard fuse holders found in industrial, commercial, and residential panelboards and disconnect switches. The fast-acting response provides immediate circuit interruption on overload or short-circuit events. At an interrupting rating of 50 kiloamps, it meets the demands of high-fault-current environments. Certified to UL 248-9 and CSA standards, this fuse suits licensed electricians and qualified electrical contractors performing service, replacement, or new installation work.

The NON-30 is suited for general-purpose branch circuit and feeder protection in electrical panels, motor control centers, and disconnect switches. It fits standard fuse holders designed for Class K5 cartridge fuses and is appropriate for both AC and DC circuits where a fast-acting response characteristic is specified. Typical applications include industrial machinery, HVAC disconnect protection, and commercial electrical distribution panels requiring reliable overcurrent protection in a compact cartridge form.

Key Features

• 30-amp rating with fast-acting response for immediate overcurrent interruption
• 50 kA interrupting rating at AC and DC for high-fault-current environments
• Class K5 cartridge body type compatible with standard fuse holder mounts
• Overall length of 2 inches and 0.563-inch diameter for drop-in replacement fit
• UL Listed to UL 248-9 and CSA Class 1421-01 File 53787 certified
• CE Certified for applications requiring international compliance

Compatibility

Designed as an OEM-style replacement for Class K5 cartridge fuse positions in standard fuse holders rated for 30-amp fast-acting fuses.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lock out the circuit before removing or inserting a fuse. Use an insulated fuse puller rated for the voltage of the circuit when servicing cartridge fuses in live panels. Verify that the replacement fuse amperage and class match the original equipment specification before reinstalling.