Which of the following is not classified as a UL listed low-voltage fuse?

The classification of UL listed low-voltage fuses is based on specific designations that indicate their intended applications and characteristics. Fuses labeled J, L, and K are recognized categories within the UL listing, each designed for particular usages in low-voltage electrical systems. The J fuse is typically used for industrial control circuits, while the L fuse is specifically intended for certain motor applications. The K fuse is also common in low-voltage applications, particularly for protecting circuits against temporary overloads.

In contrast, the E fuse does not fall under the same classification for low-voltage applications. While E fuses may serve specific functions, they do not match the same criteria or usage conditions that are designated for the J, L, and K fuses, making the E fuse the correct answer as it is not classified as a UL listed low-voltage fuse. This distinction is important for understanding the appropriate fuse selections in electrical systems to ensure safety and compliance with regulations.