PSI63C0.783-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.783-L1 is a medium frequency inverter in the PSI Frequency Inverters series, with air cooling and an IP20 degree of protection. It operates on a mains voltage of 400 to 480 VAC at 50 or 60 Hz, and features an integrated power supply unit with a maximum output current of 2 A at 24 VDC. The inverter weighs approximately 20 kg and supports operation in temperatures ranging from +10 to +55 degrees Celsius.
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Product Description:
The PSI63C0.783-L1 belongs to the PSI Frequency Inverters series engineered by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, it converts three-phase supply power into a controlled output suitable for induction heating generators, high-speed spindles, or other equipment that requires adjustable medium-frequency energy. Within an automation cell, this inverter acts as the interface between the plant mains and the connected load, helping current, voltage, and frequency remain within the required operating limits.
The unit uses an air-cooled system that channels cabinet air across its internal heat sinks, eliminating the need for external liquid-cooling loops. A line input of 400–480 VAC allows it to connect directly to standard industrial power distribution, while the selectable line frequency of 50 or 60 Hz supports installations in different regions. The housing has an IP20 rating, which protects against accidental finger contact with hazardous internal parts, but the inverter must be installed inside a suitable enclosure for protection from dust and splashing water. An integrated auxiliary supply provides a regulated 24 VDC output at up to 2 A. This output can power compatible contactors, sensors, or a small PLC without requiring an additional power module, which reduces panel wiring and simplifies power distribution.
During continuous operation, the unit dissipates up to 360 W as heat, which must be considered when calculating airflow for a cabinet containing one or more inverters. Reliable operation is supported within an ambient temperature range of +10 to +55 °C, while the 3K3 climatic classification under EN 60721-3-3 indicates the applicable climatic conditions for stationary, weather-protected use. During storage, the electronics tolerate temperatures from -25 to +70 °C, helping prevent temperature-related damage in unconditioned facilities. An integrated timer controlled through Ethernet supports managed startup and shutdown sequences, allowing the inverter to coordinate its operation with remote controllers. The assembly weighs 20 kg, allowing it to be positioned and installed with suitable standard lifting equipment.
