Eaton FD60 Autotransformer - EPCT Fire
The FD60, type EPCT Fire Controller utilizes an auto-transformer that is inserted in the power supply to the motor to reduce the voltage at the motor terminals and to provide a smooth acceleration. The main contactor by-passes the autotransformer after a short acceleration time and applies full voltage to the motor terminals. Starting line current is 47% of the across-the-line starting inrush (approximately 280% of rated full load amperes).