SIEMENS 5SX21-C4 Description Description SIEMENS 5SX21 C4 CONTROL CIRCUIT BREAKERS 4 AMP 230/400 VAC Related products SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FN3150-4SA00-0AA0 SIEMENS 1FT5072-0AC01-1-Z SIEMENS 1FK7060-5AF71-1FH3
