Overview
The Bussmann NON-15 is a 250V, 15-amp, Class K5 general-purpose, non-current-limiting cartridge fuse. Designed for one-time operation, this fuse provides basic overcurrent protection in lighting circuits, branch circuits, and main panel applications where inductive loads and large motor starts are not present. This lot includes 4 fuses—ideal for maintenance stock, panel replacement, or circuit upgrades.
Key Features
- General-Purpose, Non-Current-Limiting: One-time general purpose non-current limiting fuse used in lighting circuits, main panel protection, and other circuits that don’t contain large electric motors or inductive loads.
- Class K5 Rating: One to 60 amp fuses UL Listed Class K5 (IR: 50kA).
- Standard Cartridge Dimensions: Dimensions: 2″L x 0.56″W x 0.56″H, with ferrule terminals for standard fuse holders.
- 250V AC Rated: Suitable for 250Vac residential, commercial, and light industrial circuits.
- Ferrule Terminal Design: Standard 0.56″ ferrule diameter fits common clip-style fuse blocks and holders.
Technical Specifications
- Current Rating: 15 Amp
- Voltage Rating: 250 VAC
- Class: K5 (General Purpose)
- Type: One-Time, Non-Current-Limiting
- Interrupting Rating: 50,000 Amps (symmetrical)
- Body Style: Cartridge (D-Type)
- Terminal Style: Ferrule
- Dimensions: 2.0″ L × 0.56″ W × 0.56″ H
- Standards: UL 248-9, CSA, CE
- Quantity per Lot: 4 fuses
Typical Applications
Cartridge fuses are used extensively in commercial, industrial and agricultural applications as well as residential fuse panels, air conditioning, pumps, appliances and other equipment. The NON-15 Class K5 is particularly suited for:
- Residential and commercial main panel protection
- Branch circuit overcurrent protection
- Lighting circuit protection
- Equipment branch circuits without significant inductive loads
- Air conditioning and pump circuits (non-motor-start applications)
Compatibility & Replacements
Compatible With
- Standard ferrule fuse holders (0.56″ diameter opening)
- Residential and commercial electrical panels rated for 250V service
- Clip-style fuse blocks and cartridge fuse blocks
- General-purpose circuits in 250V AC systems
Replaces / Drop-In Replacement For
- Bussmann NON-15 (original part number)
- Cooper Bussmann NON-15, Eaton NON-15 (equivalent models)
- Other Class K5, 250V, 15A general-purpose cartridge fuses with ferrule terminals
Works With
- UL Listed Class K5 fuse standards (UL 248-9)
- CSA-certified electrical installations
- North American 250V AC circuits
- Standard electrical panel configurations








