Siemens 3NA6107 Description Description Siemens FUS. NH ISOL.GL / DD GR.1 500VAC 20A SIGNAL. Related products SIEMENS 1FN3150-4SA00-0AA0 SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK6032-6AK71-1TG0 SIEMENS 1FT5066-0AC01-2-Z