Siemens Generators Parts ( 1FC4, 1FC5, 1FC6) Our products of AVR on stock Type 6GA2 490-0A( For 1FC4 & 1FC5 series) ; Generating units SINMENS 1FC5 automatic voltage regulator ( AVR) Siemens Generators Parts ( 1FC4, 1FC5, 1FC6)