Eaton NON-15 Cartridge Fuse 15A 250V Class K5

Product Description

The EATON NON-15 is a one-time, non-current-limiting cartridge fuse rated at 15 amps and 250 volts. It provides general-purpose overcurrent protection without a time delay, making it well suited for lighting circuits, main panel protection, and branch circuits that do not serve large electric motor loads. The NON-15 carries a UL Class K5 listing with an interrupting rating of 50,000 AIR and uses ferrule-style ends for secure installation in standard fuse holders and disconnect blocks. Licensed electricians and qualified electrical contractors are the typical installers for this component.

This fuse is designed for use in non-current-limiting applications where a fast-acting, one-time protective device is required. Typical installations include lighting panel feeders, small appliance branch circuits, and main disconnect protection in residential and light commercial settings. Because it has no time delay, it is not intended for circuits with large inductive motor loads, where inrush current would cause nuisance opening.

Key Features

• 15-amp continuous current rating at 250 volts
• One-time, no-time-delay operation for fast overcurrent response
• UL Listed Class K5 with 50,000 AIR interrupting rating
• Ferrule ends compatible with standard cartridge fuse holders and disconnects
• Not suitable for circuits with large electric motors

Compatibility

Designed as an OEM-style replacement for standard ferrule-type cartridge fuse holders rated for Class K5 one-time fuses in non-current-limiting 250-volt circuits.

Installation Notes

Installation and replacement should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before opening any fuse holder or disconnect enclosure. Use an appropriately rated fuse puller when removing or inserting ferrule-end fuses to avoid contact with energized parts. Verify the replacement fuse amperage and voltage rating match the circuit requirements before restoring power.