UL 248-4:2019 PDF Download

The UL 248-4:2019 standard focuses on a specific type of fuse known as the Class CC fuse. This standard specifically applies to Class CC fuses that have a rating of 30 A or less and are designed for use with AC voltage up to 600 V. While the standard primarily focuses on AC ratings, it also provides the option for optional DC ratings.

The purpose of this standard is to establish safety and performance requirements for Class CC fuses, ensuring their reliability and compatibility within various electrical systems. By adhering to the guidelines outlined in UL 248-4, manufacturers can guarantee that their Class CC fuses meet the necessary quality and safety standards for use in low-voltage applications.

The standard likely includes comprehensive testing procedures and criteria that Class CC fuses must undergo to meet the specified requirements. This may cover aspects such as electrical characteristics, interrupting ratings, marked voltage ratings, and temperature limitations.