UL 1417:2017 PDF Download

UL 1417:2017 is a standard that covers special types of fuses used in radio and television appliances. These fuses are relied upon to limit power or current flow in these appliances. The standard also includes requirements for fuse holders that are designed to accept these special fuses.

It's important to note that compliance with UL 1417 does not guarantee that a special fuse is suitable for use as a protective device in the end-use product. Special fuses covered by this standard are single function devices that are intended to interrupt current flow when the current exceeds a preselected value. They cannot be replaced after operation, although they may be multi-operational with multiple elements.

The acceptability of a special fuse in a specific device or appliance depends on its effectiveness in continued use under the actual service conditions. It may also be necessary to employ additional protective devices with features beyond those specified in the UL 1417 standard.