PSI63C0.120-W2 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.120-W2 is a medium frequency inverter from the PSI Frequency Inverters series, featuring water cooling and a degree of protection rated at IP20. The inverter operates at a mains voltage range of 480 to 690 VAC with a frequency of 50 or 60 Hz, and includes an integrated power supply unit rated for a maximum of 2 A output current at 24 VDC. It weighs approximately 25 kilograms and can operate in temperatures from 10 to 55 degrees Celsius.
Internal Product Review
The PSI63C0.120-W2 is a medium frequency inverter with water-cooled thermal management that suits demanding industrial drive systems. Support for 480 to 690 VAC mains voltage and 50 or 60 Hz input makes integration straightforward across varied power environments. An integrated 24 VDC power supply rated at up to 2 A adds strong practical value for control cabinet designs.
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Product Description:
The PSI63C0.120-W2 is a medium-frequency inverter produced by Bosch Rexroth Indramat within the PSI Frequency Inverters series. Designed for induction heating, welding, and similar processes that require stable medium-frequency power, the unit converts high-voltage three-phase mains power into a regulated output waveform that can be modulated by a machine controller. Its integrated power electronics and auxiliary supply simplify cabinet wiring and allow the inverter to serve as the central energy interface in automated production cells.
Incoming utility power from 480 to 690 VAC is accepted through a three-phase input bridge, allowing the inverter to operate on high-voltage distribution networks without an external transformer. Internal timing circuits synchronize the switching devices to a line frequency of 50 or 60 Hz, maintaining consistent control behavior across different grid standards. Heat generated by the IGBT stack is removed through a water-cooled baseplate, which keeps semiconductor temperatures lower than conventional air cooling. The cooling system must remove 420 W of residual thermal losses through the connected plant chiller. For control electronics and sensors, the unit provides a galvanically isolated 24 VDC rail, eliminating the need for an additional power supply module inside the cabinet.
The unit supports climatic class 3K3 operation in enclosed rooms with moderate dust and temperature variation. Its housing has a protection level of IP20, which prevents accidental contact with live conductors but does not protect the inverter against liquids. Continuous operation is permitted from +10 to +55 °C, while storage is permitted from -25 °C to +70 °C. The auxiliary converter can deliver a maximum current of 2 A to connected control electronics and sensors. With a mass of 25 kg, the inverter requires a rack or mounting surface capable of supporting its weight securely.
