... process and management mode RN1, RN2, RN3 type indoor high voltage fuseThe product is in overload or short-circuit protection ... with rated current below 7.5Aand 35V rated voltage,its fuse wire is rolled on the special ... pipe 8. Indicator4. Fuse wire 9. Porcelain core 5. Quartz sand 10. Rubber washer Product typeProduct code numberDiagram ... -10/20RN320 RN1, RN2, RN3 type indoor high voltage fuse