Siemens 3SB3000-4FD21 Description Description Siemens SEL CH 3POS PERMSX IMPDX SB30 ESTR Related products SIEMENS 1FK7103-5AF71-1DH0 SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FK7022-5AK71-1DA0 SIEMENS 1FK6060-6AF71-1TA0 SIEMENS 1FK7060-5AF71-1FH3
