Siemens 3NA6105 Description Description Siemens FUS. NH ISOL.GL / DD GR.1 500VAC 16A SIGNAL. Related products SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1790L811A SIEMENS 1FK6060-6AF71-1TG0 SIEMENS 1FN1910-0AA20-1AA0 SIEMENS 1FK7083-5AF71-1EB3 SIEMENS 1FT5066-1AF71-4AA0