The BU-62 series of flexible PVC insulators are used to electrically insulate BU-60, BU-60C, BU-60S, BU-60CS, BU-60TBO, BU-60X, and BU-61 series clips.
The BU-62S is a silicone insulator for BU-60 and BU-61 clips. These insulators are rated to 356°F (180°C), making them ideal for high-temperature applications.