EDM Pulse Generator witsh Over/ Under Voltage Protection is facilitated with DC servo for Z axis with high speed jump. EDM Pulse Generator allows reverse servo and reverse polarity machining. EDM Pulse Generator is provided with over voltage or under voltage protection that ensures safety of usage. EDM Pulse Generator with Over/ Under Voltage Protection operates on connected load of 415 VAC in 3 phase mode of operation at a frequency rate of 50Hz.