UL 248-5:2019 PDF Download

UL 248-5:2019 is a standard that specifically focuses on low-voltage fuses, specifically Class G fuses. This standard applies to Class G fuses that are rated at 20 A or less and have a voltage rating of 600 V AC. For Class G fuses with higher ampere ratings, ranging from 21 to 60 A, the voltage rating is reduced to 480 V AC. It is important to note that while this standard primarily applies to AC ratings, there is also an optional provision for DC ratings.

Class G fuses are designed to provide protection in low-voltage electrical systems. The UL 248-5 standard outlines the requirements and specifications that Class G fuses must meet in order to ensure safety and performance. This includes criteria such as ampere rating, voltage rating, and specific performance characteristics. Compliance with this standard ensures that Class G fuses meet the necessary safety and performance standards for their intended applications.