Siemens 3NA6105 Description Description Siemens FUS. NH ISOL.GL / DD GR.1 500VAC 16A SIGNAL. Related products SIEMENS 1FK7044-7AF71-1EG0 SIEMENS 1FT5072-0AC01-1-Z SIEMENS 1FK7060-5AF71-1FH3 SIEMENS 1FK7042-5AK71-1FB0 SIEMENS 1FN1910-0AA20-3AA0 SIEMENS 1FK7042-5AF71-1EA0