PSI63C0.758-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.758-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It operates with a mains voltage range of 400 to 480 VAC and a mains frequency of 50 or 60 Hz, and features air cooling and an IP20 degree of protection. The integrated power supply provides a maximum output current of 2 Amps at 24 VDC, and the inverter weighs approximately 20 kilograms.
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Product Description:
The PSI63C0.758-L1 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, it converts fixed three-phase mains power into a regulated output that drives induction heating coils, resonant power supplies, or other medium-frequency loads in industrial automation. The unit integrates into control cabinets that require variable energy delivery, compact dimensions, and onboard low-voltage services.
The inverter uses an air-cooled design that channels cabinet airflow across the heat sink, so no external liquid circuit is required. Its housing has an IP20 protection rating, which guards live parts against accidental contact but requires the unit to be installed inside a suitable enclosure in dusty environments. The power stage accepts three-phase supplies from 400 to 480 VAC, allowing operation on standard factory distribution networks without a transformer. Control algorithms remain stable with an input frequency of 50 or 60 Hz, supporting installation in regions with different grid frequencies. During full-load modulation, the inverter dissipates up to 360 W of thermal energy, which must be removed by cabinet ventilation.
An integrated supply delivers 24 VDC at up to 2 A, allowing it to power contactors, fieldbus nodes, or operator panels directly from the inverter backplane. The permitted ambient operating range is +10 to +55 °C, corresponding to climatic class 3K3 under EN 60721-3-3, while storage and transportation are permitted at temperatures as low as -25 °C. Communication with supervisory systems uses an Ethernet-based timer interface for exchanging timing commands and status information. The chassis weighs approximately 20 kg, so the mounting rails and vibration isolators must be selected to support its mass securely.
