Product Description:

The Bosch Rexroth Indramat PSI63C0.787-L2 belongs to the PSI Frequency Inverters series and is classified by the manufacturer as a medium-frequency inverter. It bridges a plant’s high-voltage supply and the load to deliver controlled medium-frequency power for induction heating systems, resonant spindle drives, or other automation tasks that demand precise electrical modulation. By integrating power conversion with an auxiliary 24 V control rail, the device simplifies cabinet layouts and supports synchronized machine sequences in industrial cells.

The input stage accepts three-phase mains from 480 to 690 VAC at line frequencies of 50 or 60 Hz, so it connects directly to common high-voltage networks without external transformers. An internal power supply provides 24 VDC at up to 2 A, which is sufficient to energize nearby contactors, sensors, or fieldbus interfaces. The enclosure carries a protection rating of IP20, providing touch-safe barriers against fingers and similarly sized objects when the unit is installed inside a switchgear rack. Heat produced by the semiconductor stack is removed by forced air. Maximum cooling losses are 360 W, a value that can be used for cabinet airflow calculations and duct sizing.

The inverter operates reliably from +10 to +55 °C, and it can be stored or transported from -25 to +70 °C without performance drift. Its climatic category is 3K3 under EN 60721-3-3, indicating tolerance for moderate humidity and noncondensing conditions typical of standard production facilities. The unit has a mass of approximately 21 kg, so appropriate lifting aids should be used during mounting. Its air-cooled design eliminates the need for liquid-cooling circuits and their associated piping. An Ethernet-based timer interface allows higher-level controllers to coordinate operating schedules or enable the inverter remotely.