This document describes the features and characteristics of Axial Lead and Cartridge fuses, including electrical characteristics, certifications, and interrupting rating.
This document provides technical specifications for the Littelfuse BLF Series, which are Midget Laminated Body Fast-Acting Type fuses. The electrical characteristics indicate that at 110% of the ampere opening rating, the fuse opens in a minimum of 4 hours, while at 200% of the rating, it opens in a maximum of 30 seconds. These fuses are listed by Underwriters Laboratories and certified by CSA, with an interrupting rating of 10,000 amperes at rated VAC. They are not recommended for use in humid areas.
| Fuse Type | Midget Laminated Body Fast-Acting Type |
|---|---|
| Opening Time (110% Rating) | 4 hours, Minimum |
| Opening Time (200% Rating) | 30 seconds, Maximum |
| Agency Approval | Listed by Underwriters Laboratories and Certified by CSA |
| Interrupting Rating | 10,000 amperes at rated VAC |
| Voltage Rating (BLF) | 250 VAC |
| Voltage Rating (BLF 20-30) | 125 VAC |
No, they are not recommended for applications in humid areas.
The interrupting rating is 10,000 amperes at rated VAC.