Overview
The Littelfuse BLF10A is a fast-acting cartridge fuse rated for 10 amps at 250VAC, designed specifically for control circuits and instrument protection in industrial and commercial applications. This lot includes 2 units. The BLF10A belongs to the POWR-GARD® BLF series of midget fuses, which are UL-listed and CSA-certified for reliable overcurrent protection. Fast-acting design provides immediate response to fault conditions, protecting sensitive equipment from damage.
Key Features
- Fast-acting response (opening type F) for immediate fault protection
- 10,000 amp symmetrical interrupting rating at 250VAC
- Compact midget cartridge design (13/32″ diameter × 1-1/2″ length)
- Fiberglass body construction for durability
- UL-listed and CSA-certified for North American installations
- Suitable for dry locations with minimal humidity exposure
Technical Specifications
- Rated Current: 10 Amps
- Voltage Rating: 250VAC
- Interrupting Rating: 10,000 Amps RMS Symmetrical at 250VAC
- Response Type: Fast-Acting (F)
- Class: Midget (5AG)
- Body Material: Fiberglass
- Dimensions: 13/32″ diameter × 1-1/2″ length (10mm × 38mm)
- Shape: Cylindrical Cartridge
- Standards: UL-listed, CSA-certified, RoHS compliant
- Series: POWR-GARD® BLF
- Quantity per Lot: 2
Typical Applications
- Control circuit protection in industrial machinery and equipment
- Instrument protection in test and measurement systems
- Panel board and switchgear overcurrent protection
- Motor control circuits in automation systems
- PLC and electronic controller supply circuit protection
Compatibility & Replacements
Compatible With
- Standard 250VAC control circuits rated for 10A or less
- Midget fuse holders and blocks (5AG class)
- Industrial control panels and electrical enclosures
- UL/CSA-approved fuse blocks and power distribution systems
Replaces / Drop-In Replacement For
- Littelfuse BLF-10, BLF010, BLF 10A, or BLF-10A variants
- Other midget fast-acting 10A 250VAC fuses meeting UL 248-14 standards
- Equivalent 10A 250VAC fast-acting fuses from compatible manufacturers
Works With
- All standard 250VAC electrical systems and control circuits
- Industrial fuse blocks and rejection-type holders
- Allen-Bradley, Siemens, Schneider, and other major controls systems
- Legacy and modern PLC control circuits










