Siemens 4EU4521-1AA00 Description Description Siemens 3PH-COMMUTATING REACTOR 1000A, FOR 690V 50HZ VOLTAGE DROP 15.2V Related products SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FN3300-4SA00-0AA0 SIEMENS 1FK6060-6AF71-1TA0 SIEMENS 1FK6060-6AF71-1TG0 SIEMENS 1FK7103-5AF71-1DH0 SIEMENS 1FK6042-6AF71-1TH0