PSI63C0.725-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.725-L1 is a medium frequency inverter from the PSI Frequency Inverters series. It supports a mains voltage of 400 to 480 VAC and operates at 50 or 60 Hz. The inverter is air cooled, has an IP20 protection rating, and weighs approximately 20 kg.
Internal Product Review
The PSI63C0.725-L1 is a medium frequency inverter with air-cooled operation that supports efficient thermal management in industrial drive systems. An integrated 24 VDC power supply rated to 2 A adds practical value for streamlined control architecture. Stable performance on 400 to 480 VAC input makes this unit a strong choice for frequency inverter applications.
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Product Description:
The PSI63C0.725-L1 belongs to the PSI Frequency Inverters series produced by Bosch Rexroth Indramat. Classified as a medium-frequency inverter, the unit converts three-phase energy into a regulated output that drives induction coils, transformers, or other medium-frequency loads used in automated installations. Its design integrates control, power, and protection functions so machine builders can install the inverter directly in control cabinets without additional power-conditioning hardware. The integrated arrangement also reduces the number of separate electrical components required between the incoming supply and the connected load.
The drive accepts a line supply of 400–480 VAC at 50 or 60 Hz, allowing it to operate on common industrial power systems. Internally, an auxiliary supply delivers 24 VDC at up to 2 A for sensors, relays, or field I/O, eliminating the need for a separate low-voltage source for those devices. Heat is removed through a forced-air cooling system, so the installation does not require liquid-cooling lines or an external coolant circuit. The housing has an IP20 protection rating and must be installed inside a suitable enclosure when dust, moisture, or dripping fluids may be present. Cabinet ventilation must provide sufficient airflow around the inverter and prevent heated exhaust air from recirculating through its cooling path.
Total dissipated heat during full-load switching is limited to 360 W, which provides a basis for calculating panel airflow and heat removal. Continuous operation is permitted at ambient temperatures from +10 to +55 °C, while the electronics can be stored or transported at temperatures from -25 to +70 °C. Climatic category 3K3 under EN 60721-3-3 permits operation under moderate climatic conditions after the unit is securely mounted. Timing and diagnostic functions are accessed through an Ethernet-based timer interface, permitting remote adjustments and status monitoring without a local control panel. The inverter weighs 20 kg, so its DIN rails or base plate must be rated for the applied load and securely fastened to the cabinet structure. Adequate clearance should be maintained around the housing to support cable routing, cooling airflow, and access to the electrical connections.
