Overview
The Bussmann BAF-2 is a fast-acting supplemental fuse designed for overcurrent protection in general-purpose electrical circuits. With a 250VAC rating and 2-amp capacity, this cartridge fuse delivers reliable protection for lighting, meter circuits, and industrial applications where rapid response to electrical faults is required.
Key Features
- Fast-acting (fast-blow) design for immediate fault detection and circuit isolation
- Fiber tube body construction with nickel-plated brass ferrule endcaps for durability
- 250VAC voltage rating with 100 AIC interrupting capacity at rated voltage
- Compact cartridge form factor (13/32″ × 1-1/2″) fits standard midget fuse holders
- UL Listed, CSA Certified, and CE marked for broad regulatory compliance
Technical Specifications
- Nominal Current Rating: 2 amperes
- Voltage Rating: 250VAC (10 kAIC at 125VAC)
- Interrupting Rating: 100 AIC at 250VAC
- Operating Speed: Fast-acting (fast-blow)
- Fuse Class: Supplemental (5AG/AB midget)
- Dimensions: 0.41″ diameter × 1.5″ length (10.3mm × 38.1mm)
- Construction: Fiber tube with nickel-plated brass endcaps
- Color Code: Green label (Bussmann BAF series identifier)
- Certifications: UL Listed (Std. 248-14), CSA Certified (Class 1422-01), CE Marked
Typical Applications
- General-purpose circuit protection in commercial and industrial control panels
- Lighting circuit branch protection and fixture protection
- Meter circuit auxiliary circuit fusing
- Protection of transformers, relays, and small motors rated at 2 amps or less
- Electronic equipment and instrumentation overcurrent protection
Compatibility & Replacements
Compatible With
- All standard midget fuse holders (13/32″ × 1-1/2″ form factor)
- Bussmann BAF series fuse blocks and panel-mount holders
- Eaton fuse panel assemblies rated for 250VAC supplemental protection
- Industrial control circuits requiring 2-amp 250VAC fusing
Replaces / Drop-In Replacement For
- Bussmann BAF-2 (original specification)
- Cooper Bussmann BAF-2 (historical designation)
- Littelfuse BLF-2 (functionally equivalent alternative)
- Other 2A 250VAC fast-acting supplemental fuses rated for midget holders
Works With
- Bussmann fuse identification and selection software
- Standard 250VAC electrical distribution and control systems
- UL 508 industrial control panel assemblies
- Commercial and residential electrical branch circuits rated 250VAC or less












