PSI63C0.787-L1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.787-L1 is part of the PSI Frequency Inverters series and serves as a medium frequency inverter. It operates with a mains voltage of 400 to 480 VAC at 50 or 60 Hz, and is air cooled. The unit features an integrated power supply providing up to 2 Amps at 24 VDC and has a protection rating of IP20. Approximate weight is 20 kg and it functions within an operating temperature range of 10 to 55 degrees Celsius.
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Product Description:
The PSI63C0.787-L1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat and supplied as part of the PSI Frequency Inverters series. The unit converts three-phase mains power into a controlled medium-frequency output that can drive induction coils, resonant heaters, or similar loads in automated production lines. Its enclosure contains the power stage, control logic, and an auxiliary power supply, reducing the number of separate components required in the equipment cabinet. This integrated arrangement also shortens internal power and control connections while keeping the primary inverter functions in one housing.
The inverter accepts a mains input range of 400–480 VAC at line frequencies of 50 or 60 Hz, allowing direct connection to common industrial power systems without a transformer. An internal switched-mode power supply provides 24 VDC control power and can deliver up to 2 A for compatible sensors, relays, or fieldbus nodes. This auxiliary output eliminates the need for a separate 24-volt power module when the connected control devices remain within its available current. Air channels remove heat generated by semiconductor switching, and maximum cooling losses are rated at 360 W. This heat-loss value can be used when sizing cabinet ventilation and evaluating the thermal load within the enclosure. The inverter is air-cooled, so forced airflow must pass over the heat sink to maintain acceptable semiconductor temperatures during continuous operation. Cabinet placement should leave the required airflow paths unobstructed and prevent nearby components from restricting heat removal.
The housing has a protection rating of IP20, so the inverter must be installed inside a closed panel that prevents accidental contact with live parts. Its total mass is approximately 20 kg, requiring the mounting surface and fasteners to provide adequate mechanical support. Operation is supported within an ambient temperature range of +10 to +55 °C, while storage is permitted at temperatures as low as -25 °C. The inverter belongs to climatic class 3K3 under EN 60721-3-3, making it suitable for controlled indoor industrial areas with limited condensation. The built-in Ethernet timer interface supports integration of process timing with the surrounding automation system. During transport, the electronics can withstand temperatures up to +70 °C when the inverter is not operating.
Frequently Asked Questions about PSI63C0.787-L1:
Q: What cooling method does the PSI63C0.787-L1 frequency inverter use?
A: The PSI63C0.787-L1 is air cooled to maintain optimal operating temperatures during use.
Q: What is the mains voltage range accepted by the PSI63C0.787-L1 inverter?
A: This model supports a mains voltage range of 400 to 480 VAC, compatible with various industrial power supplies.
Q: What is the maximum output current from the integrated power supply of the PSI63C0.787-L1?
A: The PSI63C0.787-L1 offers a maximum output current of 2 A from its integrated 24 VDC power supply unit.
Q: What is the degree of protection for the PSI63C0.787-L1 inverter?
A: This frequency inverter is rated with IP 20 degree of protection, offering basic protection against solid objects but not water.
Q: What is the allowable ambient operating temperature for the PSI63C0.787-L1?
A: When operating, this unit can function within a temperature range of +10 to +55 °C.
