Product Description:

The PSI63C0.766-W2 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat for the PSI Frequency Inverters series. In automation cells, it converts utility power into an adjustable medium-frequency output that drives induction coils, melting furnaces, or other process equipment requiring tightly controlled alternating magnetic fields. By delivering stable power at variable frequencies, the inverter allows heating intensity to be matched to material demand while supporting efficient energy use and consistent product quality in high-throughput industrial lines.

Heat is extracted through a water-cooled heat sink, so thermal energy is carried away by an external coolant circuit rather than cabinet airflow. The housing has an IP20 protection rating, which prevents contact with internal components by fingers and similarly sized foreign objects while leaving ventilation openings exposed to the surrounding air. Input power is accepted from three-phase grids operating at 50 or 60 Hz, and the rectifier supports line voltages from 480 to 690 VAC. During full-load conversion, the unit produces up to 420 W of heat that must be removed by the facility’s water-cooling system. The inverter is suitable for climatic category 3K3 under EN 60721-3-3. This category applies to indoor installation under the operating conditions covered by that standard.

An integrated auxiliary supply delivers a 24 VDC control voltage with a maximum output current of 2 A, allowing contactors, sensors, or a fieldbus interface to operate without a separate supply module. The operating ambient temperature ranges from +10 to +55 °C, while the permitted storage and transportation range extends from -25 to +70 °C. These operating limits accommodate many production environments without requiring additional enclosure ventilation or temperature-based derating. Performance data and startup sequencing are accessible through the built-in Ethernet timer channel, providing a direct connection for monitoring and control functions. The inverter has an approximate shipping weight of 25 kg, which supports installation in standard control frames with suitable lifting and mounting equipment.