SBS midget fast-acting fuses were developed in response to the industry's demand for smaller equipment and components. They are the only fuses in their size with a full 600 VAC rating for all ampere ratings by UL Standard 248-14 and CSA No. 59.2, and are the only fuses of this size with an interrupting rating of 100 kA RMS, compared to 10 kA on other brands.