Siemens 3NA6117 Description Description Siemens FUS. NH ISOL.GL / DD GR.1 500VAC 40A SIGNAL. Related products SIEMENS 1FK7042-5AK71-1FB0 SIEMENS 1790L811A SIEMENS 1FT5072-0AC01-0-Z SIEMENS 1FN3150-4SA00-0AA0 SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FK6060-6AF71-1TA0