PSI63C0.178-W2 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.178-W2 is a medium frequency inverter from the PSI Frequency Inverters series, featuring a water-cooled design and a protection degree of IP20. It supports a mains voltage range of 480 to 690 VAC with a frequency of 50 or 60 Hz and includes an integrated power supply unit with an output current of up to 2 A at 24 VDC. The inverter weighs approximately 25 kg and is designed for operation in temperatures from 10 to 55 degrees Celsius.
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Product Description:
The PSI63C0.178-W2 belongs to the PSI Frequency Inverters series manufactured by Bosch Rexroth Indramat. As a medium-frequency inverter, it converts high-voltage three-phase power into a controllable output that drives induction heating coils, hardening machines, or other process equipment that benefits from adjustable frequencies. In automation lines, this unit sits between the plant mains and the work coil, matching electrical parameters while providing the precise energy dosing needed for repeatable thermal profiles.
The inverter accepts a supply range of 480–690 VAC at 50 or 60 Hz, so it can be connected to common industrial distribution systems. Heat generated inside the cabinet is removed by a water-cooled heat exchanger, which keeps semiconductor junctions within safe limits when heat losses reach 420 W during full-load operation. The IP20 housing protects against finger contact with hazardous internal parts but does not protect against water, so the unit requires installation in a suitable electrical room or additional enclosure. These ratings establish the required power connection, coolant capacity, and enclosure protection for safe installation and sustained operation.
An integrated auxiliary supply delivers 24 VDC at up to 2 A, powering the internal control board, timer circuit, and external sensors without a separate power module. Continuous operation is permitted at ambient temperatures from +10 to +55 °C, while transportation and warehouse storage are permitted from -25 °C to +70 °C. The unit meets climatic class 3K3 under EN 60721-3-3, indicating resistance to the moderate humidity and airborne contaminants commonly found in production facilities. With a mass of 25 kg, the inverter can be wall-mounted or placed on slide rails, provided that the mounting structure and fasteners support it securely during operation.
