PSI63C0.775-W1 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat PSI63C0.775-W1 is a medium frequency inverter in the PSI Frequency Inverters series and uses water cooling. It operates with a mains voltage range of 400 to 480 VAC and offers an output voltage of 24 VDC at a maximum output current of 2 A from its integrated power supply unit. The inverter is rated for IP20 protection and weighs approximately 25 kilograms.
Internal Product Review
The PSI63C0.775-W1 is a medium frequency inverter with water-cooled thermal management. A 400 to 480 VAC mains rating and 50 or 60 Hz compatibility support straightforward integration into standard industrial power systems. An integrated 24 VDC power supply with up to 2 A output adds valuable control-side support for efficient cabinet design.
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Product Description:
The PSI63C0.775-W1 is a medium-frequency inverter manufactured by Bosch Rexroth Indramat as part of the PSI Frequency Inverters series. This unit converts fixed-frequency plant power into a regulated medium-frequency output that drives induction coils, resonant heaters, or other loads requiring rapid energy transfer. Within an automation cell, it acts as a dedicated power module that can be sequenced through an Ethernet-based timer interface. A water-cooled chassis removes heat from the power electronics, while climatic class 3K3 according to EN 60721-3-3 indicates the operating conditions the enclosure can withstand. These features support installation in industrial cabinets where nearby equipment may contribute additional heat during continuous production cycles.
The inverter accepts three-phase mains power at 400 to 480 VAC, allowing direct connection to common industrial distribution networks without step-down transformers. Its power stage operates with line frequencies of 50 or 60 Hz, so the same model can be used with either supported supply frequency after appropriate parameter adjustment. An internal switch-mode power supply delivers a 24 VDC control output at up to 2 A. This output can power compatible contactors, sensors, or local control equipment without requiring a separate control-voltage source. Protection of live parts is classified as IP20, meaning the housing prevents accidental contact with hazardous components while retaining the ventilation required by its enclosure design. The Ethernet timer interface coordinates firing commands and cycle timing with the higher-level automation controller, allowing the inverter to follow programmed operating sequences.
Permissible ambient operating temperatures range from +10 to +55 °C, allowing installation near heat-generating machinery while maintaining the required operating conditions for the semiconductor components. During storage or transport, the permissible temperature range extends from -25 to +70 °C, providing a broader window when the inverter is not operating. At full output, the cooling circuit must absorb up to 420 W of power losses, which should be considered when selecting the chiller capacity and water-loop flow rate. The water circuit transfers this heat away from the inverter so that thermal buildup does not reduce operating stability. With a mass of 25 kg, the inverter requires a mounting surface and enclosure structure that can support its weight securely. Adequate clearance should also be maintained around electrical connections and cooling lines to prevent strain on the installed components.
